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Cyanamide (NH(2)CN) has recently been isolated as a plant growth inhibitor from Vicia villosa, which is the first discovery of cyanamide from natural sources. To reveal the presence of the biosynthesized cyanamide in plants, 3.4 mM potassium ((15)N)nitrate was administered to 15- to 35-day-old
To investigate the effects of different planting patterns on soil nutrient contents, rice yield, nitrogen production efficiency, and apparent nutrient balance, a long-term field experiment was conducted in Changsha, Hunan, China. Four planting patterns were examined, including winter fallow-double
The use of green manures in agriculture can provide nutrients, affect soil microbial communities, and be a more sustainable management practice. The activities of soil microbes can effect crop growth, but the extent of this effect on yield remains unclear. We investigated soil bacterial communities