Author: George Edward SmithPublisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 76
Book Description
Soil Fertility and Corn Production
Author: George Edward SmithPublisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 76
Book Description
Crop Rotation on Organic Farms
Author: Charles L. MohlerPublisher: Natural Resource Agriculture and Engineering Service (Nraes)
ISBN: 9781933395210
Category : Crop rotation
Languages : en
Pages : 156
Book Description
Soil Fertility Management in Agroecosystems
Author: Amitava ChatterjeePublisher: John Wiley & Sons
ISBN: 0891183531
Category : Technology & Engineering
Languages : en
Pages : 160
Book Description
In Soil Fertility Management in Agroecosystems, Editors Amitava Chatterjee and David Clay provide a thoughtful survey of important concepts in soil fertility management. For the requirements of our future workforce, it is imperative that we evolve our understanding of soil fertility. Agronomists and soil scientists are increasingly challenged by extreme climatic conditions. Farmers are experimenting with integrating cover crops into rotations and reducing the use of chemical fertilizers. In other words, there is no such a thing as a simple fertilizer recommendation in today's agriculture. Topics covered include crop-specific nutrient management, program assessment, crop models for decision making, optimization of fertilizer use, cover crops, reducing nitrous oxide emissions, natural abundance techniques, tile-drained conditions, and soil biological fertility.
Soil Fertility Treatments for Improved Corn Production in Eastern Oklahoma
Author: Oliver Henry BrensingPublisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 28
Book Description
Seed Corn Production as Affected by Soil Fertility and Plant Population
Author: George Edward CarterPublisher:
ISBN:
Category : Grain
Languages : en
Pages : 142
Book Description
Crop Rotation and Soil Fertility
Author: Wilbur Louis PowersPublisher:
ISBN:
Category : Crop rotation
Languages : en
Pages : 20
Book Description
Soil Fertility and Corn and Soybean Yield and Quality in a Six-year Nitrogen and Phosphorus Fertilization Experiment
Author: Peter M. AnthonyPublisher:
ISBN:
Category : Soil fertility
Languages : en
Pages : 450
Book Description
Optimum management of nitrogen (N) and phosphorus (P) fertilizers for corn [Zea mays L.] and soybean [Glycine max (L.) Merr.] production requires quantitative understanding of multiple soil processes and crop responses, including supply and immobilization of N and P by soil, the response of yield and quality to nutrient availability, and the relationships and interactions between N and P cycling, crop response, and other soil physical and chemical variables. We conducted a six-year experiment on two 16-ha fields on glacial-till soils in south-central Minnesota. In each year of a corn-soybean rotation, we measured soil physical and chemical parameters and grain yield and quality at a 0.014-ha resolution within each field. These observations coincided with placement of a randomized complete block, split plot design of N and P fertilizer treatments. Spatial patterns of mineralizable N were consistent over time. Mineralizable N was highly correlated to soil nitrate at a well-drained site, but not at a poorly-drained site. Increases in available soil P per kg of net P addition were significantly related to soil pH. Within fields, spatial patterns of soybean yields were highly correlated across years, and we observed consistent relationships between yield and soil variables. Overall, soybean yield related positively to soil P and Zn and negatively to pH at all site-years. Quadratic-plateau regression models of soybean yield in relation to soil P and Zn indicate that in high pH soils at these sites, yield is optimized when soil P and Zn levels are higher than current recommendations. Corn yields responded significantly to N rate and N rate by P rate interaction in all site-years. Whole-field economic optimum N rate differed significantly by site-year and by P treatment at some site-years. Site-specific P fertilization should account for spatial variation in soil P buffering capacity. Nitrogen mineralization and NxP nutrient interactions should be accounted for in agronomic management decisions for corn production. The consistent influence of soil pH on nutrient cycling and crop response indicates the potential benefit to amelioration of high pH in calcareous glacial-till soils. Results highlight the significance of spatial variability in nutrient cycling to crop management.
Soil Fertility and Crop Production
Author: Kowligi R. KrishnaPublisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 528
Book Description
Soil fertility and crop management are the two most important ingredients in modern agricultural activity. This text explores research in the area, which is driven by the need to spread cropping zones, to intensify and obtain higher yields, and to achieve better nutrient balance.
Soil Fertility Treatments for Improved Corn Production
Author: Oklahoma Agricultural Experiment StationPublisher:
ISBN:
Category : Corn
Languages : en
Pages :
Book Description
Soil Fertility and Crop Production 1895-1930
Author: Nancy LeBlanc TurnerPublisher:
ISBN:
Category : Agricultural productivity
Languages : en
Pages : 46
Book Description