It is both amusing and instructive that Fred and Graul began their 1916 paper with the
following words:" It has been known for a long time that the presence of certain salts in the …

Biological nitrogen (N2) fixation is an important aspect of sustainable and environmentally
friendly food production and long-term crop productivity. The amount of N2 fixed is primarily …

Put Theory into Practice Scarcity of natural resources, higher costs, higher demand, and
concerns about environmental pollution-under these circumstances, improving food supply …

A pot experiment was carried out to investigate the interspecific nitrogen facilitation between
the intercropped wheat and fababean. The results from the isotope dilution method showed …

The importance of soybean as a source of oil and protein, and its ability to grow
symbiotically on low-N soils, point to its continued status as the most valuable grain legume …

Pot experiments were carried out to investigate the complementary N use between
intercropped fababean (Vicia faba L. cv. Linxia Dacandou) and wheat (Triticum aestivum L …

Biological N 2 fixation (BNF) and mineral soil absorption are complementary N sources for
soybean growth. BNF is sensitive to nutrient and environmental conditions, though a …

Legumes need large amounts of N to grow satisfactorily. Under low NO 3− availability in the
soil, many legumes meet their N requirements by N 2 fixation in association with rhizobia …

The rising real prices of purchased inputs is driving smallholder maize (Zea mays L.)
production towards lower levels of inorganic fertilizer. Legume intercrops are a source of …

Even though soybean [Glycine max (L.) Merr.] fixes N from the air, N demand at the R4 to R6
(pod‐fill) growth stages of high‐yielding, high‐protein soybean may be greater than the …