Accumulation of nitrate N
Nitrate leaching
硝态氮的淋失
硝态氮淋失
硝酸盐淋失
硝氮淋失
NO(-3)-N淋溶
硝态氮淋洗
NO3(-)-N淋洗
NO3--N淋溶
硝酸盐淋溶
硝态氮淋溶
NO3-N淋失
nitrate leaching and accumulation
nitrate N concentration
nitrate N-containing fertilizers
nitrate-N concentration
Recovery of labeled nitrate-N