控释肥对小麦/玉米农田土壤硝态氮累积和迁移的影响

石宁, 李彦, 张英鹏, 罗加法, 仲子文, 孙明, 刘兆辉, 井永苹, 薄录吉

Effects of the Controlled Release Fertilizer on Nitrate Accumulation and Migration in the Soil of Wheat-Maize Rotation System

Ning SHI, Yan LI, YingPeng ZHANG, JiaFa LUO, ZiWen ZHONG, Ming SUN, ZhaoHui LIU, YongPing JING, LuJi BO

表2 小麦/玉米不同处理的氮肥表观利用率和0—100 cm土层氮肥表观损失量

Table 2 The apparent N recovery efficiency and the apparent N loss in 0-100 cm soil layer of the different treatments for wheat and maize

处理 Treatment 氮肥表观利用率 REN (%) 0—100 cm氮肥表观损失量 Apparent N loss in 0-100 cm soil (kg·hm-2) 小麦 Wheat CRF 45.17±8.93a 46.94±6.62b OPT 53.07±11.02a 97.66±19.83a 玉米 Maize CRF 35.47±4.97A -19.35±22.40A OPT 25.40±3.21A 53.78±13.27B