Effect of Lime and Grass Control on Alfalfa Stand Persistence in Mississippi PDF Download

Author: Michael Barnett Howell
Publisher:
ISBN:
Category : Alfalfa
Languages : en
Pages : 70

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Author: American Forage and Grassland Council
Publisher:
ISBN:
Category : Forage plants
Languages : en
Pages : 100

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Author: Society for Range Management. Meeting
Publisher:
ISBN:
Category : Range management
Languages : en
Pages : 100

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Author: Joshua Andrew White
Publisher:
ISBN:
Category :
Languages : en
Pages : 104

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Alfalfa overseeded into warm-season perennial grasses such as bahiagrass or bermudagrass has the potential to increase forage quality and dry matter yield as well as extend the growing season. Many of the challenges associated with alfalfa in mixtures have been observed in warm-season grasses, but few studies have attempted to explain the dynamics between these grasses and alfalfa when grown together. Two studies were designed to note these relationships: The objective of the first study was to observe the effect of seeding rate and sod preparation on alfalfa and bermudagrass persistence over three years by using minimum tillage and alfalfa seeding rates of 17, 22, 28, and 39 kg ha−1 . Results indicated that sod preparation had no effect on establishment compared to no-tillage. Seeding rates resulted in similar biomass yields and species composition by the second year suggesting that increased seeding rates were unnecessary. Forage quality and yield were improved throughout the year, but alfalfa composition generally decreased towards the end of summer. The objective of the second study was to quantify the amount of nitrogen recovered when alfalfa was overseeded into bahiagrass and bermudagrass and fertilized with ammonium nitrate during late summer. This was accomplished by using two nitrogen rates of 15N labeled fertilizer (28 and 56 kg N ha−1 ) and two application times (after 2nd and 3rd harvest) and in two separate planting environments (planting I and II). It was found that bahiagrass was more competitive than bermudagrass when overseeded with alfalfa. Alfalfa/grass mixtures did not increase forage dry matter yield, nutritive value or grass composition with N application. Nitrogen fertilizer recovery was variable between plantings due to a large variation of alfalfa persistence within different soil types. Where alfalfa was limited, grass fertilizer recovery was over 60%, but when grass composed less than 10% in the mix, then alfalfa had the potential to recover over 40% of the applied fertilizer. The greatest N recovery by grass were favored during late N application. On the other hand, alfalfa N recovery was favored by early fertilizer application.

Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 824

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Sept.-Oct. issue includes list of theses and dissertations for U.S. and Canadian graduate degrees granted in crop science, soil science, and agronomic science during the previous academic year.

Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 568

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Author: Andy Clark
Publisher: DIANE Publishing
ISBN: 1437903797
Category : Technology & Engineering
Languages : en
Pages : 248

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Cover crops slow erosion, improve soil, smother weeds, enhance nutrient and moisture availability, help control many pests and bring a host of other benefits to your farm. At the same time, they can reduce costs, increase profits and even create new sources of income. You¿ll reap dividends on your cover crop investments for years, since their benefits accumulate over the long term. This book will help you find which ones are right for you. Captures farmer and other research results from the past ten years. The authors verified the info. from the 2nd ed., added new results and updated farmer profiles and research data, and added 2 chap. Includes maps and charts, detailed narratives about individual cover crop species, and chap. about aspects of cover cropping.

Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 574

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Author: United States. Bureau of Plant Industry, Soils, and Agricultural Engineering
Publisher:
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Category : Botany, Economic
Languages : en
Pages : 834

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Author: Plant Industry Bureau
Publisher:
ISBN:
Category :
Languages : en
Pages : 890

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