bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of Phosphate and Potash on Amino Acid Content of Alfalfa1
Authors: MacGregor J. M. , Taskovitch L. , Martin W. P. 
Published: July 2010

SynopsisAmino acid levels in Minnesota alfalfa were generally slightly above those previously reported from other areas. Phosphate and phospate‐potash fertilization produced no appreciable change in amino acid levels, but increased per acre production through increased hay yields.
Evapotranspiration and Heat Budget of a Cornfield1
Authors: Gerber J. F. , Decker W. L. 
Published: July 2010

SynopsisComparison of the values obtained by the water balance and Penman heat budget methods indicated that the Penman method overestimated the evapotranspiration when the soil surface was dry, even though abundant subsurface moisture was present, but gave reliable estimates when the soil surface was wet. The failure of the Penman method when the soil surface was dry was due to the underestimation of the amount of sensible heat transferred to the atmosphere.
Control of Roadbank Erosion in the Southern Piedmont1
Authors: Richardson E. C. , Diseker E. G. 
Published: July 2010

SynopsisSoil losses from actively eroding, steep, bare roadbank cuts in the hilly upper Piedmont of Northwest Georgia are excessive, and effective control has been secured on large numbers of similar roadbanks by establishment of certain adapted vegetative cover species, following adequate lime and fertilizer treatments and mulching where needed.
Effects of Calcium Treatment on the Quality of Cotton Seed1
Authors: Metzer R. B. , Johnson S. P. , Coffey L. C. 
Published: July 2010

SynopsisDeterioration of cotton seed due to different amounts of rainfall prior to harvest was counteracted by treating seed with calcium (hydrated lime). Calcium‐treated seed of varying stages of deterioration produced seedlings that were more healthy and vigorous than those from untreated seed. Slightly to moderately deteriorated seed tended to be less responsive to calcium treatment than highly deteriorated seed. During storage, calcium‐treated seed had slightly lower moisture content than untreated seed.
Response of Seven Oat Varieties to Different Levels of Fertilization1
Authors: Brown A. R. , Morris H. D. , Morey D. D. 
Published: July 2010

SynopsisSeven winter oat varieties gave significant variety×fertilizer interactions for grain yields, protein content of grain, and straw weight. Length of panicle, height of plant, and number of tillers per foot of row were increased by fertilizer applications. Medium and high rates of fertilization hastened the heading date by two days over low fertilization. An adapted variety plus medium to high fertilization rates are essential for the economical production of oats in the Southeast.
Responses of Soybean Varieties to Weed Competition1
Authors: Staniforth David W. 
Published: July 2010

SynopsisThere were no differences in the responses of four soybean varieties to the competitive effects of heavy infestations of annual weeds, under variations in soil fertility, bean stands, and seasonal conditions. Weed growth and the resulting bean yield reductions were increased following applications of 70 and 140 pounds of nitrogen to corn in the previous year. The maturity range of varieties included early, adapted, and late.
Sorghum Residue Reduction in a Stubble Mulch Fallow System1
Authors: Greb B. W. , Black A. L. 
Published: July 2010

SynopsisSorghum residues on the soil surface were preserved at 30 to 45% of original material in a summer fallow system with maximum use of subsurface tillage. Climatic weathering and tillage burial were nearly equally responsible for residue reduction.
Effect of Nitrogen Source on Yield and Nitrogen Content of Bluegrass Forage1
Authors: Kresge C. B. , Younts S. E. 
Published: July 2010

SynopsisYields from plots receiving 75% nitrogen as urea‐formaldehyde and 25% as urea compared favorably to those from plots receiving urea, (NH4)2SO4, or NH4NO3. Use of urea‐formaldehyde resulted in more uniform seasonal distribution of yield and greater residual effect but caused lower nitrogen content and percent nitrogen recovery in the forage.
Effect of Varying Levels of Nitrogen on Forage Yields of Several Rye Varieties and Rye Mixtures1
Authors: Morris H. D. , Reese E. L. 
Published: July 2010

SynopsisForage yields of 3 rye varieties, grown singly and in mixtures, were increased by rates of N up to 240 pounds per acre. Total forage yields of rye mixtures were not greater than varieties comprising the mixture but seasonal production of the mixtures was more favorably distributed. A differential response to N fertilization was obtained among the rye varieties.
Corn Root Distribution and Moisture Extraction in Relation to Nitrogen Fertilization and Soil Properties1
Authors: Linscott D. L. , Fox R. L. , Lipps R. C. 
Published: July 2010

SynopsisRoot development and moisture extraction in a nitrogen‐fertilized sandy soil exceeded that in unfertilized soil during early growth of the corn, but were essentially the same under both conditions at maturity. Fertilized corn was more efficient in its use of soil moisture. Restricted root development was associated with high bulk density and low nutrient availability in the substratum. Roots in unfertilized plots were associated almost exclusively with old root channels and organic materials.
Response of Alfalfa to Irrigation and Fertility Level1
Authors: Lathwell D. J. , Vittum M. T. 
Published: July 2010

SynopsisIn 5 of 8 years when other factors were not limiting, irrigation on a silt loam soil in a vegetable crop rotation including alfalfa significantly increased dry matter yield of alfalfa by 1490 pounds per acre per year. Extra fertilizer increased total yield by 240 pounds of dry matter per acre per year. Highest yields, averaging 10,500 pounds of dry matter per acre per year, came from irrigated high‐fertility‐level plots.
The Use of Field Maturity Data to Establish Optimum Harvest Period for Merion Kentucky Bluegrass Seed Production1
Authors: Sumner D. C. , Lindsey K. E. 
Published: July 2010

SynopsisPresent data illustrate the desirability of establishing field maturity standards upon which to base field readiness for seed harvest under California climatic conditions. Harvesting when 20 to 35% of the panicles are fully mature appears to be the range of field maturity at which maximum seed yields and minimum preharvest shatter losses occur.
Effect of Time and Rate of Fertilizer Application on Yield and Seed‐Size of Jumbo Runner Peanuts1
Authors: Hallock D. I. 
Published: July 2010

SynopsisPeanut fruits contained more large seeds when all fertilizer was applied to the corn in a 2‐year rotation rather than applied equally between crops. On both Galestown fine sand and Woodstown loamy fine sand, fruit drop‐off was higher on plots fertilized the same year peanuts were grown. At the Galestown site, fruit drop‐off was greater on the fertilized than on the check plots. There was no significant yield response to fertilization over a 5‐year period.
Factors Affecting Use of Minimum Tillage for Corn1
Authors: Van Doren D. M. , Ryder Gordon J. 
Published: July 2010

SynopsisUse of minimum tillage resulted in an average of 4.8 bushels per acre more corn than use of conventional tillage. Low yield levels and low rainfall combined with high degrees of land slope tended to increase this difference. Weed control practices, conventional seedbed preparation, soil surface texture and internal drainage, and previous crop had no effect on the yield difference between the tillage systems.
Drying Patterns of a Sandy Clay Loam in Relation to Optimal Depths of Seeding1
Authors: Wiegand Craig L. 
Published: July 2010

SynopsisWithin two days after irrigation of Hidalgo sandy clay loam a parabolic moisture distribution arose in the zone where seeds are normally placed. The drying rate could be expressed by a simple analytic expression. Planes of equal moisture content advanced into the soil as a linear function of time.
Soybean Response to Molybdenum and Lime and the Relationship Between Yield and Chemical Composition1
Authors: Parker M. B. , Harris H. B. 
Published: July 2010

SynopsisSoybean seed yield, leaf N, seed protein, and seed weight were increased by application of Mo or lime on moderately acid soils. Significant positive correlations existed between seed yield and soil pH (where Mo was not applied), seed yield and leaf N, leaf N and seed protein, seed yield and seed protein, and seed yield and seed weight. No correlation existed between seed yield and soil pH when Mo was applied. A significant negative correlation existed between seed protein and oil.
Reversal of Nondehiscence of Anthers in Cotton by Foliar Application of Choline Chloride or Urea1
Authors: Scott Ralph A. 
Published: July 2010

SynopsisAcromania and hollow‐boll are two naturally occurring nondehiscent‐anther disorders in cotton. Cotton plants with either disorder produce dehiscent anthers following applications of choline chloride or urea to cotton leaves. The minimum chemical concentration to induce corrections is 100 micrograms per plant. Poor water penetration, aeration, and high nitrite‐ion concentration of the soils are characteristics closely related to the expression of these disorders. The timing of applications with reference to dehiscent flowers, bolls per plant, and seed cotton yields is presented.
Effects of Soil Aeration and Compaction upon Yield, Nutrient Takeup and Variability in a Greenhouse Fertility Experiment1
Authors: Van Diest A. 
Published: July 2010

SynopsisDry matter yield and nutrient accumulation of corn were little affected by aeration and compaction applied to potted soil. Variability among replicate determinations of biological indices was sharply increased by compaction of fertilized soil. Compaction lowered oxygen diffusion rates, increased bulk density, but did not affect root production and distribution.
Correlations of Certain Properties of the Alveogram with Important Hard Winter Wheat Quality Characteristics1
Authors: Shogren M. D. , Finney K. F. , Hoseney R. C. , Bolte L. C. 
Published: July 2010

SynopsisAlveogram length obtained with a modified alveograph method was useful in predicting loaf volume of hard winter wheat flour when mixing or oxidation requirement was taken into account.
Mechanics of Water Movement and Storage in Soils: A Teaching Technique1
Authors: Hobbs J. A. , Wittsell L. E. 
Published: July 2010

SynopsisWater movement and water storage are described for a tank equipped with a porous cover and three storage sections. Empirical equations developed by hydraulic engineers to account for water flow are employed. Either graphic methods or integration can be used to determine how the velocity of water flow and the rate of water storage or loss change with time. Analogies are drawn between water movement and storage in the tank and water movement and storage in the soil.
Interrelationships of Soil Moisture Level at Planting Time and Nitrogen Fertilization on Winter Wheat Production1
Authors: Ramig Robert E. , Rhoades H. F. 
Published: July 2010

SynopsisMaximum yields on low nitrogen soils resulted from the application of 20 pounds of N per acre for every 3 inches of available preplanting soil moisture. Flour of inferior protein quality was milled from wheat grown under high moisture stress. N recovery increased from 30 to 50% as available soil moisture at seeding time increased from O to 8 inches. Water use and water use efficiency increased as available soil moisture and rate of N fertilization increased.
Germination of Sorghum Seed as Affected by Dormancy1
Authors: Gritton Earl T. , Atkins R. E. 
Published: July 2010

SynopsisA range of sorghum genotypes differed significantly in relative expression of seed dormancy when germinated at intervals of 2 weeks and 1 month after harvest. Seed dormancy was of little consequence 3 months after harvest. Seed scarification was the most effective of several treatments evaluated for their utility in overcoming dormancy.
The Development of Carbohydrate Reserves in Alfalfa Seedlings Under Various Levels of Shading and Potassium Fertilization1
Authors: Matches Arthur G. , Mott G. O. , Bula R. J. 
Published: July 2010

SynopsisSubstantial concentrations of carbohydrates were evident in roots of Du Puits, Vernal, and African seedlings 6 weeks after seeding. Neither growth under reduced light intensity nor 3 potash fertilization rates affected root concentrations of total available carbohydrates (TAC), but total amounts increased as root growth was greater under the higher light intensities and higher potash rates. Varieties differed less in the amounts of TAC produced than in the concentration of TAC in the roots.
Effect of Frequency of Harvesting Coastal Bermudagrass for Pellets When Fed with High and Low Concentrates to Dairy Cows1
Authors: Miller W. J. , Brooks O. L. , Beaty E. R. , Clifton C. M. 
Published: July 2010

SynopsisCoastal bermudagrass was harvested at 3‐, 5‐, and 7‐week frequencies and pelleted. Cows fed the younger pellets and/or the higher level of concentrates produced more milk and gained more weight. Forage consumption and milk composition were not affected by the treatments. No interactions were significant. The younger forage contained more protein, but yielded less dry matter per acre.
Change of Forage Seed Quality in Commercial Warehouses in Western Oregon1
Authors: Ching T. M. , Schoolcraft I. , Rowell P. , Taylor H. , Davidson B. 
Published: July 2010

SynopsisUnder present cultural practices of seed production and systems of handling in western Oregon, safe storage period for seeds of chewings fescue, Alta fescue, and sudangrass is 15 months; crimson clover, 3 years; highland bentgrass, 4 years; and common ryegrass, 5 years.
Brackish Water Irrigation of Several Vegetable Crops in Humid Regions1
Authors: Gallatin M. H. , Lunin J. , Batchelder A. R. 
Published: July 2010

SynopsisThe use of brackish water over a 5‐year period indicates that salinity effects are determined by variations in the saline status of the soil throughout the growing season and by the sensitivity of the specific crop, especially with respect to the growth stage at which salinized. Rainfall distribution is an important factor influencing salt accumulation in the soil.
On the Relationship Between Water and Sugar Cane Yield in Hawaii1
Authors: Chang Jen‐hu , Campbell R. B. , Robinson F. E. 
Published: July 2010

SynopsisA general equation is derived to express the fraction of actual to potential yield as a function of the fraction of actual to potential evapotranspiration. This equation is further simplified so that the actual yield could be expressed as a sole function of water. The estimated yields differ from the actual yields by 7%.
Effect of Nitrogen Fertilization on Yield, Components of Yield, and Other Agronomic Characteristics of Winter Wheat1
Authors: Rohde Charles R. 
Published: July 2010

SynopsisNitrogen fertilization caused increases in the grain yield, number of culms per plot, plant height, and straw weight of all varieties. None of the varieties showed an effect on the calculated number of kernels per head. The effects of fertilization on 100‐kernel weight, heading date, test weight, and straw‐grain ratio were variable.
Effect of Potassium and Nitrogen on the Free Amino Acid Content of Corn Plants1
Authors: Barker Allen V. , Bradfield Richard 
Published: July 2010

SynopsisGrowth was limited by deficient and excessive quantities of both N and K. Nitrogen deficiencies and excesses gave the greatest reductions in yields. Generally, growth was greater when a large proportion of the N was supplied as NH4+. Asparagine was the predominant amino acid in the plants. The content of asparagine and other free amino acids was increased by higher levels of N nutrition and higher proportions of NH4+‐N within any given N level. It was decreased by higher levels of K.
Effects of Dates and Rates of Nitrogen Fertilization on the Quality and Field Performance of Five Hard Red Spring Wheat Varieties1
Authors: McNeal F. H. , Watson C. A. , Kittams H. A. 
Published: July 2010

SynopsisFlour protein percentages were nearly the same from wheat receiving applications of nitrogen fertilizer at sowing time and in the flowering stage, but valorimeter values were significantly lower from applications made in the flowering stage. Rates of nitrogen fertilizer produced significant differences in flour protein, flour yield, absorption, valorimeter, and loaf volume.
Effects of Two Virus Diseases on Milling and Baking Properties of Wheat Grain and Flour and on Probable Nutritive Value of Forage Wheat1
Authors: Finney Karl F. , Sill W. H. 
Published: July 2010

SynopsisGrain samples from wheat plants infected by soil‐borne‐mosaic or wheat‐streak‐mosaic virus had milling properties that were inferior to, protein quality and mixing properties that were equal to, and water absorption, protein content, and “as received” leaf volume that were distinctly superior to those of the corresponding controls. Forage samples of winter wheat varieties susceptible to and infected by wheat‐streak‐mosaic virus were significantly higher (0.1% level) in protein content than those of healthy controls.
Soil Moisture Tension, Sugarcane Stalk Elongation, and Irrigation Interval Control1
Authors: Robinson Frank E. 
Published: July 2010

SynopsisElongation rate declined as soil moisture tension approached 2 bars at the 12‐inch depth. However, when the soil moisture tension in any cycle did not exceed 2 bars an increased rate of elongation following irrigation compensated for the decrease in rate prior to irrigation, and no real reduction in the average growth rate occurred. After the 2‐bar stress was exceeded at the 12‐inch depth a real reduction in the average growth rate occurred.
Effects of Soil Moisture, Temperature, and Fertility on Yield and Quality of Irrigated Potatoes in the Southern Plains1
Authors: Box J. E. , Sletten W. H. , Kyle J. H. , Pope Alexander 
Published: July 2010

SynopsisManagement of soil moisture by irrigation techniques influenced soil temperature and yield and quality of potatoes. The minimum soil temperature and the highest yield occurred in the every‐row irrigated high moisture treatment. Fertility rates higher than 80‐0‐0 or distance along the irrigation run did not influence tuber yield and grade.
Relationship of Types of Phosphorus in Wheat Flour and Gluten to Flour Quality1
Authors: Watson C. A. , Miller Byron S. , Johnson John A. , Bequette R. K. 
Published: July 2010

SynopsisBoth location and variety were significant factors affecting the concentration of the different types of phosphorus in the flour and gluten. Total and acid‐soluble phosphorus in the flour and in the gluten were correlated with loaf volume by simple regression coefficient and by partial regression coefficient independent of protein content. Phosphatide and ester type phosphorus in the gluten were correlated with loaf volume independent of protein content.
Influence of Clipping on Yield, Regrowth, and Root Development of Dallisgrass, Paspalum Dilatatum Poir., and Kleingrass, Panicum coloratum L.1
Authors: Holt Ethan C. , McDaniel Jerry C. 
Published: July 2010

SynopsisWeights of stubble, crown, and roots of dallisgrass decreased from spring to fall. Neither yield nor basal plant weight were greatly influenced by clipping treatments. The weight changes were interpreted as being an inherent characteristic rather than a response to specific management practices. Kleingrass appeared to be favored by the less intensive defoliation treatments. Treatments which produced the greatest forage yields resulted in reduced stubble, crown, and root weights.
Effect of Age on the Chemical Composition, Palatability and Digestibility of Grass Leaves1
Authors: Burton Glenn W. , Knox F. E. , Beardsley D. W. 
Published: July 2010

SynopsisYoung leaf blades from the top of heading culms of Gahi‐1 pearl millet and Georgia 337 Sudangrass were more palatable and contained more crude and true protein and less lignin than older lower leaves taken from the same culms. Eighteen successive leaves from top to bottom of the culms of late‐maturing millet plants gradually decreased from 73.9% to 58.2% in digestible dry‐matter content. Millet genotypes differed significantly in digestible dry‐matter content.
Methods of Reducing Soil Crusting to Increase Cotton Seedling Emergence1
Authors: Bennett O. L. , Ashley D. A. , Doss B. D. 
Published: July 2010

SynopsisSeedling emergence of cotton was increased by the use of soil conditioners, evaporation‐suppressing agents, and chemicals to reduce crust strength, and by altering geometric characteristics of the soil surface. Seedling emergence was negatively correlated with crust strength and positively correlated with moisture content of the top 3 inches of soil.
Micro‐Heteorgeneity—A Basic Concept in Soil Science Oft Neglected in Teaching1
Authors: Hutcheson T. B. 
Published: July 2010

SynopsisThe importance of a clear concept of the micro‐heterogeneous nature of soils in the teaching of elementary soils courses is emphasized. Its use in the interpretation of the law of mass action and in understanding the effect of pH on the availability of essential elements is stressed.
Effects of Nitrogen, Calcium:Potassium Saturation Ratio, and Electrolytic Concentration on Uptake of Calcium and Potassium by Rice Plants1
Authors: Chaudhry M. S. , McLean E. O. , Franklin R. E. 
Published: July 2010

SynopsisUptake of Ca and K varied several fold with saturation and electrolyte level. Nitrogen had less pronounced effects on cation uptake. Similar information on Ca uptake was obtained in a 4‐day period as was obtained in a 40‐day period, while there was less similarity in trends of K uptake for the 2 growth periods.
Pans in the Southern Great Plains Soils. II. Effect of Duration of Radial Root Restriction on Cotton Growth and Yield1
Authors: Mathers A. C. , Welch N. H. 
Published: July 2010

SynopsisA restriction of 0.79 cm. or less for a period of 2 weeks or more on cotton roots reduced lint yield. All plants restricted to 0.32 cm. for 6 weeks or more died. Many plants died when restricted to 0.32 cm. for 4 weeks or' 0.48 cm. for 6 weeks, and the lint yield was very low on the plants that remained. Plant height was reduced by 0.32‐ and 0.48‐cm. restrictions of 4 weeks or more duration. On plants that were not killed, the part of the plant where the clamp was removed grew larger than was normal on check plants.
Greenhouse Evaluation of the Relative Importance of Lime and Potassium for the Establishment and Maintenance of Alfalfa and Orchardgrass Seedlings1
Authors: MacLeod L. B. , Bradfield Richard 
Published: July 2010

SynopsisSeedling weight, dry matter yield and root weight of alfalfa plants seeded in small plugs of limed (pH=7.0) soil in an acid soil medium (pH=4.8) were significantly greater than when seeded directly in acid soils or in plugs of unlimed soil, but yields were significantly lower than where all the soil in a pot was limed to a pH of 5.6. A soil pH of 5.9 was adequate for establishing alfalfa and orchardgrass seedlings.
Alternate Three‐Cutting Systems for Alfalfa1
Authors: Dexter S. T. 
Published: July 2010

SynopsisA schedule of cutting 3 times in the bud stage before September 1 was compared with cutting twice in early bloom and once about November 1 with 10 varieties of alfalfa, in 3 sets of plots in 2 locations, over a period of 6 years in lower Michigan. In the locations where the growing season and distribution of rainfall made it difficult to obtain three good cuttings before September, the alternate system gave as good as or better yields and definitely better survival.
Response of Four Winter Wheat Varieties to Nitrogen Fertilization1
Authors: Stickler F. C. , Pauli A. W. 
Published: July 2010

SynopsisIn 7 trials, tendencies for only slight differential varietal response to N (V ✕ N interaction) were noted. The significant interaction for yield noted in 2 trials was attributed to Ottawa's being more responsive to N and Bison less responsive than the other varieties tested. Disease resistance was believed to be an important factor affecting response to applied N.