soil mineral nitrogen 第1页

Some effects of inorganic fertilizer and recycled crop nutrients on soil nitrogen supply and paddy rice production in the red earth region of China Absorption and apparent budget of nitrogen by direct-seeding rice cultivated in aerobic soil with or without mulching Nutrient characteristics of four kinds of winter green manure and their influences on soil mineral nitrogen before incorporation Decomposition characteristics of maize roots derived from different nitrogen fertilization fields under laboratory soil incubation conditions Influence of residues and earthworms application on N2O emissions of winter wheat Difference of nitrogen utilization and distribution of mineral nitrogen in soil profile by competitive abilities of intercropping systems Effects of water condition and nitrogen level on soil dissolved nitrogen compounds