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1 小麦/玉米产量和总吸氮量

Table 1 The grain yield and total N uptake for wheat and maize

处理 Treatment 产量Grain yield (t·hm-2) 总吸氮量Total N uptake (kg·hm-2 ) 小麦 Wheat 玉米 Maize 小麦 Wheat 玉米 Maize CK 4.97±0.14b 5.79±0.20b 113.70±11.54b 89.2±5.95b CRF 7.58±0.35a 8.31±0.46a 178.75±12.87a 148.79±8.35a OPT 7.87±0.71a 7.57±0.38a 209.22±19.84a 142.53±6.74a