Ammonium fixation and the effects of soil moisture and application methods on fertilizer N recovery were investigated in two soils of Shaanxi Province,China,a L
S concentrations in samples of mulberry leaves and silworm(Bombyx mori L.)cocoon shells and quality of cocoon taken from typical mulberry gardens of six provinc
A field experiment was conducted in a well-puddled paddy fielddeveloped on the Tama River alluvial soil in the Farm of TokyoUniversity of Agriculture and Techno