Alfalfa (Medicago Sativa L.) Cultivar Performance when Grown on Soils with Acidic Subsoils PDF Download
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Author:
Publisher:
ISBN:
Category : Alfalfa
Languages : en
Pages : 50
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Author:
Publisher:
ISBN:
Category : Alfalfa
Languages : en
Pages : 50
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Book Description
Author: R Duncan
Publisher: Academic Press
ISBN: 0323145167
Category : Science
Languages : en
Pages : 589
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Book Description
Crops as Enhancers of Nutrient Use examines the various plant and soil factors that contribute to nutrient use efficiency of plants. It attempts to address policies regarding Low Input Sustainable Agriculture (LISA), conservation-oriented cropping systems, and reductions in environmental contaminants. It also presents longer-term remedies to some of the inherent problems of high volume applications of expensive fertilizer nutrients. This book emphasizes plant-soil interaction, particularly, nutritional interactions involving rhizosphere, microbes, and stress on the root system. Stress factors include moisture and low and high pH. The book also covers the genetic and physiological response of plant to nutrients at the cellular level, on a whole-plant basis, and when subjected to stress. This book will contribute to the development of a more cost-effective and judicious nutrient usage of major crops.
Author:
Publisher:
ISBN:
Category : Forage plants
Languages : en
Pages : 68
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Author:
Publisher:
ISBN:
Category : Forage plants
Languages : en
Pages : 228
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Book Description
Author: David E. Huset
Publisher:
ISBN:
Category : Alfalfa
Languages : en
Pages : 216
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Book Description
Author: Charles Daley Foy
Publisher:
ISBN:
Category : Acid soils
Languages : en
Pages : 28
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Book Description
Author: Dennis John Chessman
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Acid soils limit the growth of aluminum-(Al) sensitive crops such as alfalfa (Medicago sativa L.). Management of acid subsoils can be difficult due to physical and economic constraints. Field experiments were conducted at two locations to evaluate the effectiveness of surface-applied gypsum and a flue gas desulfurization by-product for reducing the toxic effects of acid subsoils on alfalfa. The materials were applied at rates of 0, 5, 10, and 15 Mg ha-1. In addition, a glasshouse experiment was conducted that used 0, 5, and 10 Mg ha-1 of gypsum only. Field studies were concluded 41 and 45 months after treatment application at the two locations. No effect of material on alfalfa yield or tissue mineral concentration was observed. Also, rate did not affect yield. However, there were differences in plant tissue mineral concentration in several harvests that were related to rate. Soil was sampled periodically to 120 cm and indicated movement of Ca and S into the soil profile to depths of 60 and 120 cm, respectively. Subsoil pHH2O and pHCaCl2 were not affected by treatment. Extractable and exchangeable Al were not reduced by movement of Ca and S into the soil. In the glasshouse study, alfalfa yields and root growth were not affected by gypsum rate. As gypsum rate increased, plant tissue S increased, but K and Mg decreased. Alfalfa roots did not grow below 60 cm, even though there was indication of material movement to 90 cm in the soil. Although sulfur moved to 75 cm, no effect on soil Al was observed. Leachate collected from the bottoms of columns indicated that soil cations were leached as a result of gypsum application. Gypsum and the flue gas desulfurization by-product did not significantly affect the acid soils used in these studies or improve alfalfa growth.
Author: Richard Paul Walgenbach
Publisher:
ISBN:
Category :
Languages : en
Pages : 188
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Author: Robert E. Wilkinson
Publisher: CRC Press
ISBN: 0824746562
Category : Science
Languages : en
Pages : 480
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Book Description
This book presents comprehensive coverage of differentiated plant responses to changing environments. It focuses on how multiple and combined stress factors influence plant survival. It examines the latest data on the capacity of roots to alter growth patterns due to disturbances in physical and/or chemical soil constraints, water supply, and other traumas. It contains over 85% new and updated material with more than 1500 new citations, tables, drawings, and photographs.
Author: Daniel Stewart Thomas Roberts
Publisher:
ISBN:
Category : Alfalfa
Languages : en
Pages : 320
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Book Description
