Reliance on Biological Nitrogen Fixation Depletes Soil Phosphorus and Potassium Reserves
نویسندگان
چکیده
منابع مشابه
Potassium reserves in soils with arid and semi-arid climate in southern Iran: a perspective based on potassium fixation
ABSTRACT- The present research was conducted to study K forms and fixation in soils of southern Iran (Hormozgan Province) with aridic and aridic-ustic regimes and to address the relations between soil mineralogy and potassium forms. Thirteen surface soil samples (0-25 cm) were collected from different regions and analyzed in laboratory. Illite and feldspar and mica are the major clay and soil m...
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1. Nitrogen-Fixing Organisms 2. Importance of Nitrogen Fixation 2.1. Inputs to the Ecosystems 2.2. Methods to Measure Nitrogen Fixation 3. The Rhizobium–Legume Symbiosis 3.1. The Rhizobia 3.2. Establishment of the Symbiosis 3.3. Functioning of the Root Nodule 4. Evolution and Ecology 5. Applications 5.1. Agronomy and Forestry 5.2. Biotechnology 6. Future Prospects Glossary Bibliography Biograph...
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A controlled greenhouse experiment was conducted to study the fraction, uptake and fixation of phosphorus (P) and potassium (K) in three soils with contrasting characteristics. The experiment was carried out in two phases, viz., sorghum-Sudangrass depletion and test crop experiment with maize with three levels of fertility status (depleted, original and fertilized with 40 mg kg-1 P and K) and t...
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Crop rotation was practiced in ancient times by alternating the use of leguminous and nonleguminous plants. The basis for the benefit derived from this practice was not understood, but it was observed empirically that crops were improved and the condition of the soil was maintained better with rotation than by continual cropping with nonleguminous plants. Rotation was recognized as good husband...
متن کامل“Biological Nitrogen Fixation” Book Summary
Biological nitrogen fixation is a very valuable alternative to nitrogen fertilizer. This process will be discussed in the “Biological Nitrogen Fixation” book. A wide array of free-living and associative nitrogen fixing organisms (diazotrophs) will be covered. The most extensively studied and applied example of biological nitrogen fixation is the symbiotic interaction between nitrogen fixing “rh...
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ژورنال
عنوان ژورنال: Nutrient Cycling in Agroecosystems
سال: 2020
ISSN: 1385-1314,1573-0867
DOI: 10.1007/s10705-020-10101-w