Biochar application rate affects biological nitrogen fixation in red clover conditional on potassium availability

Isoflavone content in red clover (Trifolium pratense L.) as related to nitrogen and phosphorus application rate

Red clover (Trifolium pratense L.) as a dietary supplement is currently used to treat menopausal symptoms because of its high concentrations of mildly estrogenic isoflavone. The application rate of N and P fertilizer has a huge influence on the isoflavone content (IC) in red clover. Trifolium pratense ‘Minshan’ is a unique plant resource in the alpine pasture region of northwest China. It plays...

Comparison of Dinitrogen Fixation and Nitrogen Transfer Potentials of Four Red Clover Cultivars

Biological Nitrogen Fixation with Emphasis on Legumes

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...

Effects of nitrogen application rate, nitrogen synergist and biochar on nitrous oxide emissions from vegetable field in south China

Globally, vegetable fields are the primary source of greenhouse gas emissions. A closed-chamber method together with gas chromatography was used to measure the fluxes of nitrous oxide (N2O) emissions in typical vegetable fields planted with four vegetables sequentially over time in the same field: endive, lettuce, cabbage and sweet corn. Results showed that N2O fluxes occurred in pulses with th...

Biological nitrogen fixation, 1924-1974.

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...