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Full-Text Articles in Life Sciences
Nitrogen Fertilizer Timing And Phosphorus And Potassium Fertilization Rates For Established Endophyte-Free Tall Fescue, D. W. Sweeney, J. K. Farney, J. L. Moyer
Nitrogen Fertilizer Timing And Phosphorus And Potassium Fertilization Rates For Established Endophyte-Free Tall Fescue, D. W. Sweeney, J. K. Farney, J. L. Moyer
Kansas Agricultural Experiment Station Research Reports
Tall fescue production was measured during the second year of a study with locations started in fall of 2016 and fall of 2017. In the second year at both sites, phosphorus (P) fertilization rate did not affect harvest yields. Applying nitrogen (N) in late fall or late winter resulted in greater spring yields than applying N in spring or not applying N. However, fall harvest yields at Site 1 in 2018 were greater without N, but were greater with spring N application at Site 2 in 2019. In both site-years, the second-year tall fescue total yield rank as affected by …
Fertilizer Source And Rate Affect Sulfur Uptake And Yield Response In Corn, T. E. Husa, D. A. Ruiz Diaz
Fertilizer Source And Rate Affect Sulfur Uptake And Yield Response In Corn, T. E. Husa, D. A. Ruiz Diaz
Kansas Agricultural Experiment Station Research Reports
With sulfur deficiencies being found throughout Kansas, the evaluation of sulfur fertilization and plant uptake are vital to optimize corn production. The objective of this study was to evaluate the effect of application rates of sulfur on yield and uptake in corn. Nutrient concentrations in corn biomass and grain were evaluated at the Kansas River Valley Experiment Field at Rossville, KS, in 2019. Five treatments were evaluated, including a control with no sulfur and no nitrogen (N), and four fertilizer treatments with 180 lb of nitrogen and four rates of sulfur fertilizer (0, 30, 50, and 200 lb S/a). The …
Tiller Contributions To Low-Density Corn Biomass And Yield, R. Veenstra, C. Messina, L. Haag, P. V. Vara Prasad, I. A. Ciampitti
Tiller Contributions To Low-Density Corn Biomass And Yield, R. Veenstra, C. Messina, L. Haag, P. V. Vara Prasad, I. A. Ciampitti
Kansas Agricultural Experiment Station Research Reports
Tillers (commonly termed “suckers”) have lower overall yield contributions in corn (Zea mays L.) than in other Poaceae species. Current research evaluating the value of tillers in corn is scarce, particularly under water-limited conditions. This study aims to quantify relationships between tiller, main plant, and full (considering both tiller and main plant fractions) plant aboveground biomass and yields of corn under low plant density scenarios. Experiments were conducted in the 2019 growing season at three sites across Kansas (Garden City, Goodland, and Manhattan) evaluating two tiller-prone corn hybrids common in this region (P0805AM and P0657AM) at two plant densities …
Effect Of Late Season Management Practices On Soybean Seed Filling And Yield, F. E. Baronio, I. A. Ciampitti
Effect Of Late Season Management Practices On Soybean Seed Filling And Yield, F. E. Baronio, I. A. Ciampitti
Kansas Agricultural Experiment Station Research Reports
For soybean (Glycine max [L.] Merr.), final seed yield is primarily explained by modifications in the seed number per unit area. However, changes in individual seed weight can contribute to variations in seed yield. Final seed weight is defined by the amount of biomass accumulated in seeds per day (i.e., rate of seed growth) and the duration of this phase (i.e., number of days for seed filling). During the seed filling period, the seed growth rate and the duration are sensitive to growing conditions. Thus, any limitation on resources availability (e.g., water, radiation, and nutrients) during this period can …