bluuebunny/crossref_metadata_2025_split huggingface dataset:
Establishment of Grasses on Sandy Soil of the Southern High Plains of Texas Using a Mulch and Simulated Moisture Levels1
Authors: Moldenhauer William C. 
Published: July 2010

SynopsisEmergence of seven grasses occurred at a much lower moisture level when a mulch covered the seeded area. The mulch was much less beneficial with cool temperatures during the period of germination. Weather records show that a mulch would have been helpful in 31% of the years at Big Spring, Texas, and 36% of the years at Seminole, Texas.
The Genetic Inheritance of Cytoplasmic‐Genetic Male Sterility in Grain Sorghum1
Authors: Maunder A. B. , Pickett R. C. 
Published: July 2010

SynopsisMale sterility in grain sorghum was controlled by a single recessive nuclear gene interacting with sterile cytoplasm. Male sterility, as determined by lack of seed set on bagged heads, was analyzed with 27 stocks in testcrosses, selfed testcrosses, and F2 populations. The designation ms, is suggested for this gene.
Response of Meyer Zoysia to Lime and Fertilizer Treatments
Authors: Juska Felix V. 
Published: July 2010

SynopsisMost rapid growth of Meyer zoysia was obtained when the soil pH approached a range between 6 and 7 and adequate amounts of a complete fertilizer were used. Response to nitrogen was more pronounced than to either phosphorus or potassium; however, phosphorus significantly increased top, stolon, and root growth. An optimum supply of potassium in combination with other fertilizer elements increased stolon development.
Pasture Soil Compaction by Animal Traffic1
Authors: Tanner C. B. , Mamaril C. P. 
Published: July 2010

SynopsisAnimal traffic caused serious compaction of fine textured pasture soils, severely decreased pore‐space open to aeration, and caused a 20% decrease in alfalfa‐brome‐Ladino yields during the first pasturing year on Ontonogan clay loam.
Factors Associated with Lodging Resistance in Oats1
Authors: Norden A. J. , Frey K. J. 
Published: July 2010

SynopsisLarge culm diameter and large cross section area of tissue were the most closely associated with high lodging resistance, and genotypic correlations in the F3 generation showed a sizeable common genetic association between lodging resistance and these two characters. A significant negative association was obtained between culm height and lodging resistance. The correlation between yield per panicle and lodging resistance was relatively low and should be of little importance in a plant breeding program.
Performance of Crested Wheatgrass Synthetics in Advanced Generations1
Authors: Knowles R. P. 
Published: July 2010

SynopsisSynthetics of crested wheatgrass did not outyield check varieties at close row spacings. As spaced‐plants, however, synthetics outyielded checks in the Syn.1 generation. Lower yields in the Syn.2 and Syn.3 generations indicated inbreeding. Outcrosses of the Syn.2 generation of synthetics showed slight hybrid vigor.
The Influence of Light Reduction Upon the Production, Persistence and Chemical Composition of Coastal Bermudagrass, Cynodon Dactylon1
Authors: Burton Glenn W. , Jackson James E. , Knox F. E. 
Published: July 2010

SynopsisThree degrees of shade reduced forage yields, stands, root and rhizome yields, underground reserves, and available carbohydrates but increased moisture, lignin, crude protein, true protein, P, Ca, and Mg contents of forage fertilized with 200 pounds of N per acre. Rate of yield reduction was much higher in heavily fertilized grass (1600 pounds N) and paralleled light reductions. Heavily fertilized grass showed much less change in chemical composition due to shade.
Effect of Intensity and Quantity of Light on the Growth of Alfalfa, Red Clover, and Birdsfoot Trefoil1
Authors: Rhykerd C. L. , Langston Ruble , Mott G. O. 
Published: July 2010

SynopsisAn increase in dry weight of the tops and roots of seedlings was obtained with an increase in light quantity from 1,200 to 38,400 foot‐candle‐hours per day. The magnitude of the increase, with increasing foot‐candle‐hours per day, was dependent upon the manner in which light was received by the plants.
Influence of Plant Spacing of the Jumbo Runner Peanut on Fruit Development, Yield, and Border Effect1
Authors: Shear G. M. , Miller L. I. 
Published: July 2010

SynopsisPlanting Jumbo Runner peanuts at variable spacings as close as six inches between plants resulted in higher yields as the space between plants was decreased. The closer spacing retarded the rate of fruit development. Border effect with close spacing was found to extend through two rows and the error from failure to eliminate an adequate number of border rows increased as the space between plants decreased.
The Production and Botanical Composition of Alfalfa‐Grass Combinations and the Influence of the Legume on the Associated Grasses1
Authors: Tewari G. P. , Schmid A. R. 
Published: July 2010

SynopsisAlfalfa‐grass mixtures yielded more forage with slightly higher alfalfa content than the same combinations with alfalfa and grasses in alternate rows, six inches apart. Growing the alfalfa and grasses as alternate double or triple rows resulted in considerable yield reduction as compared to alternate single rows or mixtures. Grass in rows 6 inches from an alfalfa row had higher yield and protein content than in rows 12, 18, or 24 inches from an alfalfa row.
The Effects of Soil Moisture Stress at Different Stages of Growth on the Development and Yield of Corn1
Authors: Denmead O. T. , Shaw R. H. 
Published: July 2010

SynopsisMoisture stress prior to silking reduced grain yield by 25%, moisture stress at silking reduced grain yield by 50% and moisture stress after silking reduced grain yield by 21%. The interactions between different growth stages were not statistically significant.
Utilization of Fertilizer by Six Pasture Grasses1
Authors: Duell Robert W. 
Published: July 2010

SynopsisAll 6 grasses responded to 3 rates of 10–10–10 fertilizer with increases in yields and uptake of plant nutrients in the first 2 of 4 cuttings. Interactions indicated that orchardgrass and Kentucky bluegrass were more responsive to fertilization in terms of yield. Kentucky bluegrass was lower yielding early each season, but superior thereafter. Nitrogen and potassium removal by the harvested grasses exceeded that applied annually as 10–10–10. Severe soil mining of potassium was indicated.
Effect of Cropping Systems on Runoff, Erosion, and Wheat Yields1
Authors: Horner G. M. 
Published: July 2010

SynopsisCrop rotations that include legume‐grass sod crops are more effective for runoff and erosion control, soil organic matter maintenance, and high wheat yields than the unfertilized pea‐wheat and fallow‐wheat systems. Summer fallowing causes the largest erosion losses and the most rapid depletion of organic matter.
The Effect of Row Spacing, Fertilizer and Planting Rate on the Yield and Water Use of Irrigated Grain Sorghum1
Authors: Porter K. B. , Jensen M. E. , Sletten W. H. 
Published: July 2010

SynopsisIrrigated grain sorghum grown in 12‐ or 20‐inch rows produced significantly higher grain yields and produced more grain per inch of water used than in 30‐ or 40‐inch rows. This was attributed to a more uniform spacing of plants which resulted in more efficient use of moisture, nutrients, and solar energy.
Alfalfa Response to Irrigation Frequencies in the Presence of a Water Table1
Authors: Campbell R. E. , Larson W. E. , Aasheim T. S. , Brown P. L. 
Published: July 2010

SynopsisAlfalfa produced nearly as much forage under arid conditions without irrigation as with 6 irrigations per year when the water table was 5 to 9 feet below the soil surface. However, appreciable salt accumulation occurred in the 3‐ to 7‐foot soil depth.
Relation of Seed Dormancy of Green Needlegrass (Stipa viridula Trin.) to Age and Treatment1
Authors: Rogler George A. 
Published: July 2010

SynopsisSeed dormancy of green needlegrass decreased with increasing age of seed. Peak germination was reached at 7 years of age with a gradual decrease for 21 years. Stratifying seed in moist sand for 60 days at 2° to 4° C. resulted in high germination of new seed. Stratified seed was stored for one year without loss in germination.
Tensile Strength Variations in Leaves of Weeping Lovegrass (Eragrostis Curvula (Schrad.) Nees.) and Certain Other Grasses1
Authors: Kneebone William R. 
Published: July 2010

SynopsisSignificant leaf tensile‐strength differences were found among strains of weeping lovegrass and among clones of bermudagrass, sideoats grama, and sand bluestem. Wide within‐strain variations (leaf to leaf and plant to plant) made precise comparisons difficult. Reasons for this variation were investigated and procedures for increasing precisions of estimate are discussed. Principal source of nongenetic variations was age or growth stage of individual leaves tested.
Recurrent Selection for Seed Weight in Bromegrass, Bromus Inermis Leyss1
Authors: Christie B. R. , Kalton R. R. 
Published: July 2010

SynopsisAmong 203 bromegrass clones grown in a topcross nursery, the range in mean seed weight was 0.60 to 1.26 g. per 300 seeds. Ten clones of high and 10 of low seed weight were selected and recombined in separate, isolated polycross blocks. The range in mean seed weight among 986 progeny plants was 0.44 to 1.62 g., and the means of the 2 groups of polycross progenies were significantly different. Almost 50 progeny plants were superior to the best parent clone in seed weight.
Root Development of Coastal Bermudagrass with High Nitrogen Fertilization1
Authors: Holt Ethan C. , Fisher F. L. 
Published: July 2010

SynopsisCoastal bermudagrass root weight per acre remained at a high level while nitrogen content of the roots, and organic matter content of the soil increased slightly as fertilizer nitrogen rates increased from 0 to 1600 pounds per acre. Hay yields were greatly increased with the same treatments resulting in an 8‐fold change in the root‐top ratio. Stands and yields have been maintained over a 6‐year period with nitrogen treatments ranging from 0 to 1600 pounds per acre.
Soil Moisture Use by Soybeans1
Authors: Peters Doyle B. , Johnson Leonard C. 
Published: July 2010

SynopsisFrom one‐fourth to one‐half of the moisture loss from soybean plots was due to evaporation directly from the soil surface, depending on the nature of the season and the plant population. Soybeans used large amounts of moisture stored in the lower part of the rooting zone. Planting in 20‐inch rows increased yields of soybeans, especially where the soil surface was left open to evaporation.
Photosynthesis Under Field Conditions. II. An Aerodynamic Method for Determining the Turbulent Carbon Dioxide Exchange Between the Atmosphere and a Corn Field1
Authors: Lemon Edgar R. 
Published: July 2010

SynopsisRates of exchange calculated from measurements of wind velocity and CO2 gradients in the turbulent air stream were in the same order of magnitude as those calculated by another method and the aerodynamic method does not alter the crop environment. Turbulence may be a limiting factor in supply of CO2 to an active crop on sunny days. Photosynthesis efficiency was 5% at midday and nearly 8% for total daylight period on a single day.
Yields and Stands of Orchardgrass Compared Under Clipping and Grazing Intensities
Authors: Bryant H. T. , Blaser R. E. 
Published: July 2010

SynopsisYields of orchardgrass with comparable defoliation intensities were found to be significantly higher under clipping than grazing. The yearly clipping yields may be adjusted to yields obtained for grazing by the value b = 0.7445 if there is a linear relationship and the slope of the line passes through the origin.
Effect of Cultural Treatments on the Yield and Protein Content of Oats Cut for Silage1
Authors: Pendleton J. W. , Brown C. M. 
Published: July 2010

SynopsisSpring oat forage yields were favored by an early seeding date, heavy seeding rate, nitrogen application, and the growing of a medium or late maturing variety. When plants were harvested at the early dough stage, the leaves contained 37% of the total protein; the stems, 21%, and the grain, 42%.
Differential Responses of Grasses and Legumes to Liming and Phosphorus Fertilization1
Authors: Shoop G. J. , Brooks C. R. , Blaser R. E. , Thomas G. W. 
Published: July 2010

SynopsisSpecies showed a differential response to lime and phosphorus rates on an acid subsoil material. There was a tendency for lime and phosphate to compensate for each other to some degree. The yield increase due to lime was apparent up to the point at which the exchangeable aluminum was immobilized.
Trace Elements in Agricultural Limestones of the United States1
Authors: Chichilo P. , Whittaker Carlo W. 
Published: July 2010

SynopsisTrace element contents of agricultural limestones vary widely and are highest in samples from the West North Central States. At normal liming rates many limestones contribute significant amounts of certain trace elements and a few limestones contain amounts sufficient for correction of deficiencies. Contamination from overburden and milling equipment causes agricultural limestone to be higher in trace elements than unquarried rock. Contents of several elements are proportional to silicon content or total impurity.
Effect of Fertilizer Nitrogen on Yield and Nitrogen Uptake by Grass‐Legume Pastures1
Authors: Doll E. C. , Hatfield A. L. , Todd J. R. 
Published: July 2010

SynopsisYields of grass‐legume pasture on Manitou silt loam were increased in only 1 of 3 years by nitrogen fertilization. On Pembroke silt loam, yields of a pasture composed mainly of grass were increased in each of 4 years by nitrogen fertilization; yields of a grass‐legume mixture were increased in 3 of 4 years. Total uptake of nitrogen was closely correlated with yields.
Efficiency of Legume Residue Nitrogen and Inorganic Nitrogen in Corn Production1
Authors: Sutherland W. N. , Shrader W. D. , Pesek J. T. 
Published: July 2010

SynopsisEstimates of the amount of N supplied by legumes in a corn‐oats‐meadow rotation on Edina silt loam ranged from 123 to 200 pounds per acre in 1957 and from 54 to 83 pounds in 1958. The beneficial effect of the meadow crop was due primarily to N. Analyses of soil carbon indicated that carbon levels increased during the 1953–58 period on the highly fertilized continuous corn plots and rotation plots but not on the unfertilized continuous corn plots.
Beef Gains from Differentially Fertilized Summer Grasses in the Coastal Plain1
Authors: Suman R. F. , Woods S. G. , Peele T. C. , Godbey E. G. 
Published: July 2010

SynopsisMaximum beef gains from summer grazing were produced with Coastal bermudagrass fertilized with 400 pounds per acre of nitrogen. Rotational grazing of Coastal bermudagrass increased beef gains very little. Protein content of the grasses varied according to season and fertilization rate but was not the factor limiting production.
Influence of Sod Treatment and Nitrogen Placement on the Utilization of Urea Nitrogen by Coastal Bermudagrass1
Authors: Jackson James E. , Burton Glenn W. 
Published: July 2010

SynopsisLaboratory studies comparing urea and ammonium nitrate demonstrated a significant gaseous loss of urea nitrogen when applied to Coastal bermudagrass sod. This loss was insignificant when these materials were applied in March to freshly burned Coastal bermudagrass stubble or were placed 6 inches below the soil surface with special applicators.
Moisture and Nitrogen Effects on Irrigated Spring Wheat1
Authors: Robins J. S. , Domingo C. E. 
Published: July 2010

SynopsisYield depressions of 10 to 35% in irrigated spring wheat resulted from severe soil moisture stress. Reductions were greatest when stress was imposed during or after heading. Grain yield responses to nitrogen were due largely to increased head population. There appears to be no benefit in the irrigation of spring wheat prior to the boot stage unless moisture stress as indicated by wilting or curling of leaves is observed.
Ladino Clover‐Tall Fescue Association as Affected by Soil Treatment and Grass Population Variables1
Authors: Paden W. R. 
Published: July 2010

SynopsisHighly significant differences were found in the effects of variable rates of nitrogen, rates of potassium, and spacing of fescue on survival of stands of clover as determined by counting the numbers of live stolons per meter line in spring and fall. The change in numbers between seasons was less with the potassium treatments. The intermediate stand of fescue, or 12″ spacing, produced higher yields of forage and forage of more desirable composition than the thinner or thicker stands. The medium rate of nitrogen and high rate of potassium treatments were the most favorable for survival of clover in the association.
Wear Resistance of Cool Season Turfgrasses. Effects of Previous Mowing Practices1
Authors: Youngner Victor B. 
Published: July 2010

SynopsisStudies using an “accelerated wear” machine showed significant differences in wear resistance among several grass mixtures. One‐half‐inch mowing for 3 years prior to the tests was found to reduce wear resistance compared to mowing at 2 inches. Restricted grass development under close mowing is suggested as a possible cause of the reduced wear resistance.
Mowing of Turfgrass. III. The Effect of Rest on Seaside Bentgrass Turf Mowed Daily1
Authors: Madison John H. 
Published: July 2010

SynopsisOn a Seaside bentgrass turf mowed daily, 1 to 5 days a week rest from mowing were used. All rest periods resulted in increased yield. Two or 3 consecutive days of rest were more effective than the same time spread through the week. Grain as indicated by population density was not increased by 1 or 2 days a week rest.
Effect of Whey on Soil and Plant Growth1
Authors: Sharratt W. J. , Peterson A. E. , Calbert H. E. 
Published: July 2010

SynopsisWhey was effective in increasing corn yields the first and second growing season after application. If, during one season more than 4 acre‐inches of whey are applied sufficient salts may accumulate to temporarily inhibit plant growth. The protein in whey is readily converted to nitrates. Whey also benefited the soil physical status.
Availability of Soil Water to Plants as Affected by Soil Moisture Content and Meteorological Conditions1
Authors: Denmead O. T. , Shaw R. H. 
Published: July 2010

SynopsisActual transpiration decreased with decreasing soil moisture content and increasing potential transpiration. Average soil suction in the root zone when the actual transpiration rate fell below the potential rate varied from 12 bars when the potential transpiration rate was 1.4 mm. per day to 0.3 bar when the potential rate was 6 to 7 mm. per day.
Effects of High Nitrogen Fertilization and Lodging on Rice Yield1
Authors: Basak M. N. , Sen S. K. , Bhattacharjee P. K. 
Published: July 2010

SynopsisApplication of 100 pounds N per acre gave optimum yield of rice, provided plants did not lodge before heading. Pre‐heading lodging reduced level of nitrogen consumption and response and the yield. Lodging seemed to be a physiological phenomenon rather than a varietal character. It originated from structural weakness development in culm tissues and was caused primarily by deeper submergence of plants during vegetative growth aided by high nitrogen concentration in soil.
Evaluation of Forage Crops by Chemical Analysis. A Critique1
Authors: Sullivan J. T. 
Published: July 2010

SynopsisMethods for the analysis of forages are evaluated as to their suitability in predicting quality of forages, particularly as to their digestibility to ruminants. Some methods are partly satisfactory in rating forages within the same type but not in comparing grasses with legumes or mixtures. From the standpoint of the agronomist lignin and crude protein are good criteria of quality. It is also recommended that the moisture content of the standing crop be recorded.
Effect of Age of Seed on Performance of Several Oat Varieties1
Authors: Brown C. M. 
Published: July 2010

SynopsisAge of seed had a small effect on germination and on test weight in 1959. It had no significant effect on yield, on variety × age interaction for yield, or on test weight in 1960. There was a variety × age interaction for stand count in 1959 and for heading date in 1960 but not for test weight in either year. There was a small, but significant, difference in heading dates of the several ages of seed in 1960.
Effects of Phosphorus and Potassium Fertilizers on Legume Composition of Seven Grass‐Legume Mixtures
Authors: Hunt O. J. , Wagner R. E. 
Published: July 2010

SynopsisPotash greatly increased yields of legumes and percent legume in grass‐legume mixtures. Legume percentage was increased almost 100% in mixtures containing ladino clover by high potash fertilization. Birdsfoot trefoil was the only legume which produced significantly more under low lime levels than under high lime and also increased in legume composition of the forage.
Seasonal Nitrate‐Nitrogen Content of Cotton Petioles as Affected by Nitrogen Application and Its Relationship to Yield1
Authors: MacKenzie A. J. , Spencer W. F. , Stockinger K. R. , Krantz B. A. 
Published: July 2010

SynopsisNitrate‐nitrogen content of cotton petioles was found to be related to the rate of nitrogen applied and the total yield. Yield reductions were related to the length of time petiole nitrate‐nitrogen fell below minimum levels of 1000 and 2000 parts per million.
Evaluation of Forage Species on Organic Soil1
Authors: Tesar Milo B. , Shepherd L. N. 
Published: July 2010

SynopsisLegumes were unproductive and were severely invaded by other species after the first year. Reed canarygrass, Alta tall fescue, and orchardgrass were the most productive grasses. Northern bromegrass was more productive and persistent than southern bromegrass. Orchardgrass had high yield, persistence, and resistance to invasion by other species; its performance warrants its being tested for pasture in comparison to other species such as reed canarygrass and bromegrass.
Properties of Soil in Orchard as Influenced by Travel and Cover Crop Management Systems1
Authors: Miller D. E. , Bunger Wm. C. , Proebsting E. L. 
Published: July 2010

SynopsisIn a peach orchard subjected to equipment travel and 4 cover crop management systems the bulk density of the' surface soil was markedly increased by travel with the effect decreasing with soil depth. Soil organic matter levels were increased by all cropping treatments compared to those obtained on chemicallymaintained bare soil. Travel reduced water intake to approximately one‐third that obtained on nontraveled areas. Infiltration rates were greater in nontraveled trashy furrows than in clean furrows.
Production of Regrowth Forage on Native Flood Meadows1
Authors: Rumburg C. B. 
Published: July 2010

SynopsisMeadows of rush, sedge and grass were managed to produce two crops in the same growing season. Irrigation stimulated regrowth and produced 300 to 600 pounds of dry matter per acre. N with irrigation added 9 pounds dry matter per pound N. N also increased hay yields the following year. P had no effect on regrowth or on hay yields the following year. Advancing the date of hay harvest increased regrowth yields without decreasing hay yields.
Chemical Composition of Kentucky Bluegrass (Poa pratensis) as a Function of Applied Nitrogen, Phosphorus, and Potassium1
Authors: Walker William M. , Pesek John 
Published: July 2010

SynopsisThe mean percentages of N, P, and K in clippings were determined and expressed as functions of the applied fertilizer by multiple regression methods. The coefficients of determination for the 3 functions were all above 0.97, indicating that quadratic functions with linear × linear interactions served to express the relationships well.
Grazing Production Curves. I. Comparison of Steer Gains on Gulf Ryegrass and Tall Fescue1
Authors: Riewe Marvin E. , Smith J. C. , Jones John H. , Holt E. C. 
Published: July 2010

SynopsisMaximum gain per steer was higher on Gulf ryegrass than on tall fescue. As the stocking rate was increased gain per steer decreased at a faster rate on the ryegrass. With a stocking rate producing maximum gain per acre, gain per steer and per acre was higher on the ryegrass; however, the carrying capacity was greater on tall fescue.