"... In PAGE 9: ... The finer details of the network topology and service execution model are not presented here but may be found in [9]. Table1 summarises the main features of the model and the optimisation parameters used for all simulation results presented here. Note that the installation cost limit has been chosen to give approximately 80% of the possible maximum number of object instances.... In PAGE 10: ... Table 2 shows the mean arrival rates of the arrival processes over time. The object instance placement for both cases is optimised, using (M2), for equal arrivals from all services and all users, with installation costs as in Table1 . Placements do not change during simulations.... In PAGE 11: ... We lastly examine the steady-state behaviour, from simulations, of the revenue optimisation approach. Results in this section were again obtained for the parameters specified in Table1 . The relative arrival intensities are constant over the simulation period with arrivals for each service from each user being equal.... ..."

"... In PAGE 12: ... It was assumed that the producer would keep the existing tractor for use in the no-till system. Costs and returns resulting from this switch to reduced tillage or no-till are summarized in Table2 . As was the case with the beginning farmer, the no-till system proved to be the most profitable with a net return per acre of $28.... In PAGE 12: ... Net Cash Flow Based on the results of this tillage analysis, we would have to conclude that many farmers in Kentucky are not using the most profitable tillage system available. Perhaps they simply Table2 . Crop production budgets after change to reduce/no-till production systems.... In PAGE 16: ...fields. More significant, however, was our discovery (Minser and Dimmick 1988)that conventionallytilled fields associated with good surrounding habitat yielded bobwhite densities equivalent to no-till fields when fall plowing was not prac ticed ( Table2 ). Lowest densities occurred on conventionally managed farmland where crop lands were turned in autumn.... In PAGE 16: ... 1983). Table2 . Bobwhite quail population densities*on no-till and con ventionally planted areas on Ames Plantation, TN, December 1983-85 (Minser and Dimmick 1988).... In PAGE 19: ...Table2 . Growing season rainfall at Muscle Shoals, AL.... In PAGE 21: ... Table 1 depicts the required tillage distribution of land in Classes IIe, IIIe, and IVe. Estimated Tillage Change To determine possible changes in tillage brought about by the FSA, we compared our estimated tillage requirements to current tillage use (as reported by the 1986 Conservation Tillage Information Center Tillage Survey ( Table2 ). Actual Table 1.... In PAGE 22: ...reduced tillage. Table2 shows the average tillage change calculated for selected geographical extension areas across the state and also shows counties with extremes in each area. Figure 1 shows the location of the areas within the state.... In PAGE 22: ...e.underestimated. The Adjusted Estimate (B) appears to bet ter reflect the situation in central and eastern Kentucky. For Table2 . Estimated impact of the 1985 Food SecurityAct on tillage use for cultivatedcropland in selected areasand countiesin Kentucky.... In PAGE 25: ... Under both irrigated and dryland conditions at Lub bock, the fallow-cotton rotation produced the lowest yields of the conservation tillage systems compared. At the sandyland site near Wellman, overall dryland cot- ton yields were higher than at Lubbock ( Table2 ). The ter minated wheat-cotton and sorghum-cottonconservation tillage rotations produced significantly higher yields than the con ventional cotton production system.... In PAGE 25: ... In continuous cotton, highest cotton yields resulted with the minimum tillage system. In comparing the highest yielding conservation tillage system (sorghum-cotton) to conventional tillage cotton, Table2 . Cotton yield and value, production costs, and relative profitability for cropping systems at Wellman.... In PAGE 38: ...Table2 . Effect of crop and tillage on organic carbon percent- age in November, 1987.... In PAGE 38: ... Cone index averaged over all positions tended to be lower in grain sorghum compared to soybean. Organic carbon levels were slightly higher in grain sorghum compared to soybean under CT ( Table2 ) and this was probably due to the higher levels of residue which were being incorporated into the soil. Discussion The compacted layer at 6 to 12 inches in this study is a common feature of soils of the Southern Piedmont.... In PAGE 40: ...Table2 . Shoot weight, nitrogen uptake and average cone index 2 months after planting and wheat yield.... In PAGE 40: ... The paraplow greatly reduced soil compaction, especially in the E horizon or hardpan area. Results of the analysis of variance on cone index values averaged over depths of 8 to 11inches showed a significant difference between paraplow and disk plots ( Table2 ). Also, there was a significant difference be- tween chiseled plots planted with the Clemson interseeder and grain drill.... In PAGE 41: ... The amount of roots in the B horizon depends on the hardness of this compacted layer. Deep tillage increased nitrogen uptake by the wheat plant ( Table2 ). This resulted in a forage with higher protein con- tent for winter grazing.... In PAGE 44: ... At the Wiregrass Substation, corn grain yields in 1985 (Table 5) were not greatly affected by cropping systems when N was at optimum levels (180, 180, 180, and 120 lb/acre for the cropping systems, respectively). It appears that the soybean-reseeded clover system, but not the clover only or Table2 . Clover weight and Ncontent as affected by previous crop at Wiregrass Substation.... In PAGE 47: ...223 1987 Conventional + subsoiling 31 628 2,610 4,266 16,196 No-till + subsoiling 29 575 2,507 4,828 14,761 No-till 20 367 1,394 3,435 16,608 LSD (0.10) 7 92 356 578 2,090 Table2 . Corn dry matter accumulation during the 1987 grow ing season as affected by hybrid selection.... In PAGE 47: ... In 1987, when soil moisture was limited, the selection of hybrid was important. Sunbelt 1827, a cultivar with small diameter, vertically oriented roots, consistently had the greatest production of dry matter regardless of tillage treat ment ( Table2 ). In this year, dry matter production was also a good indicator of grain yields produced by the three hybrids.... In PAGE 50: ... The experimental design was a randomized complete block with four replications. Results and Discussion Irrigated corn did not respond to tillage methods in 1986 ( Table2 ). Subsoiling in-row and middle was superior to sub- soiling in-row only for unirrigated corn with conventional tillage.... In PAGE 50: ... Sub- soiling in the middle between rows obviously increases water movement into the soil from rainfall. Mulch from crop residue increases water infiltration into the soil and reduces evapora tion from the soil surface in conservation tillage systems in Table2 . Influence of tillage and irrigation on grain yield of eorn in 1986.... In PAGE 56: ...grains as with summer crops. Gmin Sorghum Yields Grain sorghum yields ( Table2 ) varied among years and were relatively low. The yields obtained, however, were ac tually higher than average yields of doublecropped sorghum in south Alabama.... In PAGE 59: ... Effective control of rhizome johnsongrass was achieved with one-year rotations with soybeans. Grain sorghum yields were not increased by rotating it with more than one consecutive year of soybeans ( Table2 ). Since johnsongrass culm counts were made at harvest, they represent both seedling and rhizome plants.... In PAGE 59: ... Soybeans in rotation with grain sorghum, however, did not produce significantly higher yields than continuous soybeans (Table 3). Table2 . Annual yield for grain sorghum and number of johnsongrass culms per 15 feet of row grown in a rotational system with soybeans.... In PAGE 61: ... The conventional tillage and Paraplow plots were smoothed with a do-all (an implement equipped with a rolling cutter bar and section harrow) prior to planting soy- beans. Soybean planting dates ( Table2 , 3, and 4) for 1985-87 ranged from May 31 to June 5 at both Northeast and Pontotoc ... In PAGE 62: ... Stand density ranged from about 40,000 plants/acre in 1987 to 78,500 in 1986. Stand densities in the Ro-till treatments were generally lower than in the Paraplow, no-till, and conventional tillage treatments in 1985 and 1987 but not in 1986 ( Table2 ). The seedbed prepared by the Ro till at planting was cloddy and rough on the surface.... In PAGE 62: ... Depth of tillage for both the Paraplow and Ro-till treatments, and fertilizer placement in the Ro-till treatment had no significant effect on yield. Stand densities in 1986 ( Table2 ) were higher than those in 1985 in all tillage treatments. Plant height at maturity was less and soybean yields averaged about 10 bu/acre less than in 1985.... In PAGE 63: ...tillage systems; in 1985 all paraplow treatments had significantly lower plant densities than both Ro-till 11 to 12-inchdepth treatments (Table 3). The Paraplow 4 to 6-inch depth had the lowest plant density and was significantly lower than both Ro-till ll to 12 ,and 14 to 15-inch depths fertilizer surface-incorporated; in 1987, however, the Table2 . Effect of reduced tillage systems and fertilizer placement on soybean plant population, height at maturity and yield on a Catalpa silty clay soil in 1985-87 at the Northeast Experiment Station.... In PAGE 69: ...680 2,450 *Corn-wheat for grain-soybeans. Table2 . Influence of conservation tillage systems on average sovbean yields for Essex and Forrest.... In PAGE 69: ... Soybean cyst nematode count/100 cc soil Sampled in July (60 days after planting) Tillage 1984 1985 1986 1987 systems Essex Essex Forrest Essex Forrest Essex Forrest Conventional Strip tillage No-tillage Conventional Strip tillage No-tillage Corn-Soybean 712 260 161 134 19 632 612 36 538 48 362 12 216 149 399 171 13 Continuous Soybeans 586 303 126 91 21 779 627 133 238 23 510 52 797 426 310 264 128 yields for the 3 years were obtained when a SCN-resistant soybean cultivar was rotated with corn and full-season soy- beans were grown (Figure 2). The drop in yields of Essex soybean between the first 4 years and last 3 years ( Table2 ) was influenced by tillage systems. The loss was smaller for no-tillage (8%)than con ventional (19%) or strip-tillage (22%).... In PAGE 70: ... Results Soybean Yield From 1980 through 1983, tillage system caused no signifi cant differences in soybean yield (data not presented). Similarly, during 1984 and 1985, neither tillage system nor lime application altered soybean yield and all treatments averaged between 35 and 41 bu/acre ( Table2 ). During 1986 and 1987, however, lime significantly increased soybean yield.... In PAGE 71: ... Although lime increased seeds per plant and weight per seed of all treatments, limed plots of the disked and subsoil plus disk treatments had fewer plants per foot of row, and plants were shorter throughout the growing season. Such symptoms were not observed in any tillage-lime treatment in 1987, and lime significantly increased average soybean yield over all tillage treatments ( Table2 ). Yield increases in 1987 associated with lime resulted from an increase in stand density of no-till soy- beans while increases, in both seed weight and number, were responsible for higher yields in other tillage systems.... In PAGE 71: ... Soybean Leaflet Analysis Leaflet analyses (Table 4) did not reveal any nutrient defi ciencies that could explain the stunting of disk only and sub- soil plus disk soybean plants in 1986. DRIS indices indicated Table2 . Yield of Centennial soybean doublecroppedafter wheat as influencedby tillage system and lime application, Baton Rouge, LA.... In PAGE 74: ... No significant interactions were noted involv ing tillage and burning or tillage and irrigation. Irrigation increased yields significantly 4 out of 5 years ( Table2 ). In 1985, a numerical increase of 4 bushels per acre Table 1.... In PAGE 75: ...cre in 1983 to 7.7 bushels per acre in 1985. In addition, significant irrigation x burning interactions were noted in 1982 and 1985. Under irrigated conditions in Table2 . Effectsof burning wheat residue and irrigationon yield of doublecropCentennialsoyeansaveragedover tilled and non tilled conditions: 1982-1986.... In PAGE 78: ...age rate was $4.50/hour. Interest on operating capital was computed at 10 percent annual percentage rate. Results and Discussion Fixed Costs Fixed costs for these systems ranged from about $19 to $25/acre ( Table2 ). Due to fewer implements needed, the no- till production system fixed costs at all locations were about $4 to $7/acre less than chisel + disk, Paraplow, and Ro-till.... In PAGE 78: ...20 - - *Time of application code: Burndown was applied 7 to 14 days before plant ing; PRE-E = preemergence application made following soybean plant ing; POT = postemergence over-top application as tank mixtures, twice during soybean growing season; and P-Dir = post-directed application to soybeans 8 to 12 inches tall as a broadcast application. Table2 . Estimated 1987 fixed costs for reduced tillage systems on three soil resource areas.... In PAGE 82: ... The dif ference continued to increase the third year on the Dothan, Malbis, and Bama soils, which indicates that the adverse ef fect of continuous no-tillage on wheat-grain yield can increase with time on some soils. Table2 . Yield of no-till soybeans (3-year average) asaffected by in-row subsoilingat planting and tillage prior to planting wheat.... In PAGE 85: ... Soybean herbicides applied were , 2,4-DB, and The combina tion of herbicides used varied each year depending on the weed problem. was used each year for ryegrass con- Table2 . Weed control management systems used for develop ing economic analysis hndget of four cropping systems, 1984-1986, MAFES Northeast Branch.... In PAGE 85: ... The total expenses did not include a charge for land, management, and general farm overhead. For practical economic comparisons, the weed control systems for soybeans relay planted in wheat and monocrop soybeans were modified as indicated in Table2 . The assump tion in the analysis for a practical farm situation was that the modified weed control systems provided the same level of weed control and the cropping systems would produce the same yield as those in the research plots.... In PAGE 92: ... Water was not limiting at either location in either year, since irrigation was used when needed. Tobacco grown with a crimson clover and hairy vetch cover crop did yield significantly higher than tobacco grown with a rye cover crop ( Table2 ). Conventional tobacco (cultivated) averaged the highest yield over 2 years, but yield was lower than the Clayton location.... In PAGE 93: ...Table2 ). There were no significant differences in grade index in 1986 or 1987.... In PAGE 93: ... The legume mulch is responsible for elevated N levels and, therefore, would affect this ratio. Reducing sugar to total alkaloid ratio Table2 . No-tillage flue-cured tobacco yield, grade index and leaf chemistry as affected by cover crop at Rocky Mount, NC, 1986 and 1987.... ..."

"... In PAGE 4: ... As the purpose of the present work was to show the suitability of this method for multi-element analysis, the results of the individual optimisation are quantitatively presented and only typical examples of the results are given. The results of the differential optimisation of the target function log SNR (in dB) and the amount of information IG are shown in Table2 . The last column of the table contains the detection limit (in pg) according to the maxima of log SNR of 90 80 70 50 40 30 40 80 120 160 200 pArlhPa Fig.... ..."

"... In PAGE 9: ....1.4. Smoothing the kernel. A simple numerical experiment with equation (22) reveals that the order of the discretization is only O(h) (cf. Table1 ). At rst glance it seems that the problem is caused by the non-smooth payo .... In PAGE 12: ...ntegrand as explained x3.1.4 is necessary for second order accuracy. The results are displayed in Table1 . The parameters used are = 0:8 and M = 5 and the mesh is uniform.... In PAGE 12: ...4 and in detail in [3]) to make computations fast. On the other hand, the discretization order depends on the choice of the collocation parameters c1 and c2, as Table1 shows. We actually observe superconvergence at the collocation points with the Radau parameters c1 = 0 and c2 = 2=3.... In PAGE 13: ...1. We observed that optimal convergence properties are attained when considering Radau points, as in Table1 . For the positive part this accounts to taking the collocation mesh X+ as xn;0 = xn and xn;1 = xn + 2 3hn; whereas for the negative operator the Radau collocation mesh X is xn;0 = xn + 1 3hn and xn;1 = xn+1.... ..."

"... In PAGE 41: ... It is practically impossible to use high order MMPP models to optimise the autocorrelation function. In Table4 we compare the optimisation steps of the identi cation meth- ods with regard to their computational cost per function evaluation and the number of parameters to be optimised. For our new method the computa- tional cost is of the same order as for the method of Yi and De Moor [28].... ..."

"... In PAGE 34: ....2. Again the best scalability properties are obtained with the parallel algorithm based on non-overlapping mesh partitions. Table1 0: Implicit Euler computations on the ONERA M6 wing Computations on the Intel Paragon : NX communication library Combined computational/numerical scalability assessment Size MESH Np # it CPU CPU/it 1 M3 16 89 1783.0 s 20.... In PAGE 35: ... A maximum of 72 Jacobi relaxations has been used. Table1 1: Two meshes and their characteristics for a FALCON jet MESH NV NT F1 30514 163732 F2 231036 1309856 Computations with mesh F1 For mesh F1, the convergence (initial normalized residual divided by 106) has required 126 non-linear iterations.... In PAGE 38: ... We note that a recent work by Barnard and Simon[1] has lead to a more e cient implementation of the RSB algorithm. Table1 2: Partitioning times for the FALCON aircraft using mesh F1 Algo Decomp Time Optim Time GRD 10.9 s 189.... In PAGE 40: ... Five steps of the simulated annealing algorithm have been used in order to improve the initial decompositions. Table1 3: Implicit Navier-Stokes computations on the FALCON aircraft with mesh F1 Computations on the Ibm SP2 : MPL communication library Total CPU times for steady state computations Np Size Algo CPU M op/s Loc Comm Glb Comm S(Np) Min Max Min Max 16 1 RIB 440.0 s 734 17.... In PAGE 41: ... This gure reduces to less than 3% on 128 processors of the Intel Paragon. Table1 4: Implicit Navier-Stokes computations on the FALCON aircraft with mesh F2 Computations on the Intel Paragon : NX communication library Total CPU times for steady state computations Np Size CPU Loc Comm Glb Comm S(Np) Min Max Min Max 128 1 8246.0 s 75.... In PAGE 41: ...5 s 18.5 s 124 Table1 5: Implicit Navier-Stokes computations on the FALCON aircraft with mesh F2 Computations on the Ibm SP2 : MPL communication library Total CPU times for steady state computations Np Size CPU Loc Comm Glb Comm S(Np) Min Max Min Max 64 1 1437.0 s 64.... In PAGE 43: ... A maximum of 36 Jacobi relaxations has been used. Table1 6: Two meshes and their characteristics for a model engine di usor MESH NV NT S1 22515 114048 S2 165797 912384 Computations with mesh S1 Here, we are interesting in assessing the in uence of the parameter used in the com- putation of the nodal gradient (13), on the accuracy of the computed solution. We therefore consider two computations for which = 1=2 and = 1=6.... In PAGE 46: ...S. Lanteri Table1 7: Implicit Navier-Stokes computations on the model engine di usor with mesh S1 Computations on the Intel Paragon : NX communication library Total CPU times for steady state computations Np Size CPU Loc Comm Glb Comm Min Max Min Max 32 1 1/2 1374.0 s 7.... In PAGE 47: ...PERFORMANCE RESULTS 43 Table1 8: Implicit Navier-Stokes computations on the model engine di usor with mesh S1 Computations on the Ibm SP2 : MPL communication library Total CPU times for steady state computations Np Size CPU Loc Comm Glb Comm Min Max Min Max 8 1 1/2 438.0 s 5.... In PAGE 50: ... Indeed, any other intrinsically sequential and e cient solver (often a direct elimination method) could play this role. Table1 9: Implicit Navier-Stokes computations on the model engine di usor with mesh S2 Computations on the Intel Paragon : NX communication library, Np = 128 Total CPU times for steady state computations nbrelmax Size CPU Loc Comm Matrix Inver Min Max Min Max 36 1 5600.0 s 25.... ..."

"... In PAGE 10: ... Foremost is knowing that reduced tillage in- creases the potential for slug damage, while incorporating some of the crop residues will limit slugs apos; ability to cause economic damage. Obviously, this presents a problem for Table1 . Average number of slugs per trap for interac tion between tillage and previous crop in 1984 and 1985.... In PAGE 21: ... nigrifrons. Table1 . Adult survival of and oviposilion by G.... In PAGE 24: ...9 X and 1.9 X higher, respectively, under vetch-corn double cropping than under the vetch-grain sor ghum double cropping system ( Table1 ). Meloidogyne in cognita or P.... In PAGE 24: ... Paratrichodorus minor did not re spond to any of the systems tested. A significant response in the population densities of two Table1 . Soil or root population densities of four nematode species averaged over 4 years following a vetch-corn or vetch-sorghum cropping system each grown in no-tillage or conventional tillage with or without subsoiling.... In PAGE 27: ... and grasshoppers were mostly Melanoplus spp. Very few Table1 . Effect of insect control at planting with carbofuran in insect populations in ladino clover interseeded into tall fescue sod.... In PAGE 28: ... = 0.02) and aphid (F = 96.71. P lt; 0.01) densities with leafhoppers being most abundant in the 9 October planting and aphids being most abundant during the 1 November planting ( Table1 ). Grasshoppers were collected in low num ber only during the first fall planting.... In PAGE 29: ...ent: a break through in technology. Crops Soil Mag. (Nov.):13-15. Successes With No-Till Cotton John F. Bradley1 Introduction Table1 . No-tillage vs conventional tillage cotton lint Eight years of research with no-till cotton at the University yields across variety trials planted into standing wheat or of Tennessee Milan Experiment Station have proven that rye.... In PAGE 31: ... Yield responses among tillage systems varied with locations Brewton. In-row subsoiling regardless of previous tillage 24 Table1 . Rye forage yields as affected by tillage prior to planting rye and in-row subsoiling for the previous sum mer cotton crop.... In PAGE 33: ... The crop rotation plan is show in Table 1. Table1 . A four-year rotation plan for determining quantitative effects of tillage and cropping system on yield of irrigated and unirrigated corn and soybean.... In PAGE 35: ... However, data from the past several years indicate responses to various N-P combinations when applied to early planted corn regardless of soil test levels (Wright, 1987). Table1 . Starter placement influence on plant height of no-tilled corn (Quincy).... In PAGE 35: ...5 The efficiency of starter fertilizer on early plant growth may be determined as much by the location of the placement as any other factor. Table1 data shows that any close place ment, even after a broadcast fertilizer application, is better than no starter fertilizer for early season vigor. This early growth may help the plant grow through insect damage, shade weeds and allow for earlier cultivation and sidedres sing of N.... In PAGE 37: ...Table1 . The Timing of Machinery Operations for Six Tillage/Cover Crop Treatments in Louisiana.... In PAGE 41: ...ighest rate of CF 2.0. The CF 1.0, TF 2.0, and C did not Table1 . Corn graln yield response to tillage and pesticides (three year average).... In PAGE 44: ... Results and Discussion Grain and whole plant yields at both locations were signi ficantly affected by the single effects of cultivar and N rate. The three way interaction of cultivar x N rate x K-Mg level Table1 . Grain and whole plant yields of corn cultivars as affected by sidedressed N rate and K-Mg for location 1.... In PAGE 46: ... For the August crop, FLOPUP and Pioneer X304C each had maximum grain yields of 78 bu A-1 approximately 22% greater than the yield for Pioneer 3320. Table1 . Maximum whole plant dry matter and grain yield by three corn cultivars affected by planting date.... In PAGE 48: ...034X for grain, and y dry matter yield (lb A-1) 2315 0.144X for plant dry Table1 . Yield variable of August plantedcornaffectedby plant population (Two location average in 1987 at Gainesville, FL.... In PAGE 51: ... The Stare Yield Performance Trial was also a randomized complete block with 4 replications, and its inclusion was for the purpose of economic analysis of an intensive manage ment system compared to a dryland single- and doublecrop system. Results and Discussion Comparisons of grain yields of Pioneer X-304C for all four years are shown in Table1 and days of planting. tassel ing and harvest can be related to air temperature and rainfall data in Figures I.... In PAGE 52: ...Table1 . No-till tropical corn yields with moderate ener gy inputs at Quincy, FL for Pioneer X-304C in 1985, 1986, 1987, and 1988.... In PAGE 54: ...Table1 . Schematic of field surface-residue/tillageopera tions for FIELD #1 for 1983, 84, and 85.... In PAGE 56: ... These data suggest that Classic could be used alone to achieve excellent preplant burndown of pitted morningglory, and would be more effective than Bladex alone. Table1 . Preplant burndown control of pitted morninggloryby Bladex and Classic.... In PAGE 59: ... Results and Discussion No interactions occurred in this experiment. Highest yields of rye WPDM were obtained when 105 lb NA-1were applied ( Table1 ) during the 85-86, 86-87, and CC avg. Response to N increased linearly up to the 105 lb A fertilizer rate and then decreased at the highest N rate (I40 lb A -1).... In PAGE 59: ... A response of rye GY2 to the application of 80 lb K A -1was observed for the 85-86 and the CC avg (FPLSD 0.05) ( Table1 ).A trend of an analogous behaviour was observed during the 86-87 CC.... In PAGE 60: ...Table1 . Rye and soybean yield variables as affected by N and K fertilization.... In PAGE 62: ...urfactant at 0.5 lb ai/acre + 0.25% v/v was applied in early July and August for summer annual broadleaf weed control. Table1 . Wheat cultivars and planting dates at the Pon totoc Branch Experiment Station, 1985-87.... In PAGE 62: ... Year Planting Dates Cultivar 1985 Oct. 18 Nov 6 Nov 20 Florida302 1986 Oct 17 Nov 1 Nov 17 Pioneer 2551 1987 Oct 25 Nov 3 Nov 16 Florida302 Each year three wheat plantings ( Table1 ) were made on about 15 October, 1 November, and 15 November. All 8-in.... In PAGE 64: ... were also measured. Results and Discussion Crimson clover dry matter production and N concentration just prior to corn planting in 1988 are shown in Table1 . Dry matter yields and N concentration were unaffected by N rate, however, cover crop management did have a significant effect on both parameters (p gt;.... In PAGE 64: ... In contrast, the direct-seeded treatment averaged only 26% of the biomass produced in the reseeding treatments. The fall of 1987 was very dry after planting the direct-seeded treat- Table1 . Dry matter production and N concentration of crimson clover as affected by N rate and clover management in 1988.... In PAGE 69: ...ble to be harvested in Dec. and Feb. while ryegrass seeded into bermudagrass sod could not be harvested until March (2). Table1 . Soil fertility levels of no-till and clean till experiments.... In PAGE 72: ...Table1 . Initial chemical propertiesof the Dothan fine san dy loam and Benndale fine sandy loam soils receiving annual rates of phosphogypsum.... In PAGE 74: ...5% moisture for grain yield determination. Results Dry matter and N content of cover crops at burndown are listed in Table1 . Nitrogen content of clove and rye ranged from 99 to 156, and from 28 to 52 lb/acre, respectively.... In PAGE 74: ...nd from 9.7 to 15.6% in rye. Table1 . Dry matter production and N content of cover corps at burndown, 7-10 days prior to planting corn.... In PAGE 77: ... Less P and Mg accrued in the plant for both them legume and grass species, with little differences among spe cies. Table1 . Biomass yield and nutrient accrument by selected cover crops.... In PAGE 80: ...eason. The corn was not imgated. As with any data col lected during the single growing season, extreme care should be exercised when these date are used to make major man agement decisions. Results As a result of the extremely dry growing season, corn grain yields ( Table1 ) were 30 to 40 bu/acre lower that normally expected for the Sand Mountain region. There was, however, a strong relationship between yield and treatments.... In PAGE 83: ... Results and Discussion Clay content influenced the total nitrogen and C/N ratio of plant biomass inputs. A higher total nitrogen wasobserved in the lower clay content with an inverse relationship seen in the C/N ratio ( Table1 ). The total carbon remained constant across varying clay content (Table 1 ).... In PAGE 83: ... A higher total nitrogen wasobserved in the lower clay content with an inverse relationship seen in the C/N ratio (Table 1). The total carbon remained constant across varying clay content ( Table1 ). Table 1.... In PAGE 86: ... Table1 . Effect of tillage, soil depth, cropping system Table 2.... In PAGE 91: ... Relat ing strength to hulk density and water content also depends on texture and organic matter. Making field strength com- Table1 . Mean profile soil strengths for disked and mini- mum tillage plots subsoiled with the Superseeder (SS), Paratill (PT),and Kelly (KE).... ..."

"... In PAGE 6: ... For a better illustration, the moving nger is shown, at each instant, by the largest radius of its segment. Table1 gives the discretization used for processing these tasks. Tables 2 and 3 gives the cpu- time and the cardinality of the sub-goals explored during the computation of the global solution ? for the di erent tasks in the case of frictionless and frictional contacts, re-... ..."

"... In PAGE 11: ... For instance, in Table 1, no- tillage corn yields exceeded those from conventional tillage by approximately 20 to 36 bu/A at the more optimal N fertilization rates. When the amounts of fertilizer N required to produce a bushel of corn were calculated ( Table2 ), it was apparent that at N rates of less than 120 lb/A, no- tillage corn required about the same amount of N/bu as conventional tillage. But, at N rates of 120 lb/A or more, no- tillage corn required LESS N/bu than conventional tillage.... In PAGE 34: ... Many innovations have been incorporated into machines which are quite acceptable for some no-tillage planting conditions. These machines are available with many options as seen in Table2 . Of course, only a limited number of these options are available or needed for the intended use of different machines.... In PAGE 36: ... Air- drill s only differ from conventional drills by using air delivery rather than gravity delivery of seed to the furrow openers. Drill component options are the same as for planters, Table2 , if applicable to narrow rows. Air seeders deliver centrally metered seed to wide sweeps with multiple discharge ports.... In PAGE 51: ... A key finding of this research was that yield of soybean following deep tillage for wheat was as high without as with in- row subsoiling even on soils with root restricting hardpans. The soils used in this research ( Table2... In PAGE 52: ... Wheat yields in 1984 and 1985 followed the same treatment trends as previous years. Grain sorghum yields ( Table2 ), however, did not follow the same trends as soybean. Regardless of tillage system prior to planting wheat, in-row subsoiling was needed for top sorghum yields.... In PAGE 99: ... We believe that the lack of discrete1y different levels of infection between plants grown in clean and near-clean tillage plots (plowed and disked) and those grown in subsurface and no-tillage plots resulted in part from contamination by spores carried by wind from one plot to another. Table2 . Effect of tillage systems on tan spot levels in winter wheat.... In PAGE 127: ... Table2 . Final emergence of four seed lots in four tillage systems at three planting dates in 1982.... ..."