2) winter wheat-summer maize field
冬小麦/夏玉米田
3) winter wheat-summer maize rotation
冬小麦-夏玉米轮作
1.
Ammonia volatilization from nitrogen fertilization of winter wheat-summer maize rotation system in the North China Plain;
华北平原冬小麦-夏玉米轮作体系氮肥的氨挥发
2.
Ammonia volatilization is an important pathway of N losses in the winter wheat-summer maize rotation system in the North China Plain.
氨挥发是华北平原冬小麦-夏玉米轮作体系氮肥损失的重要途径之一,由于缺乏准确、有效的测定方法,该体系不同条件下氮肥的氨挥发缺乏定量评价。
4) Double-harvest winter-wheat and summer-maize
冬小麦-夏玉米两熟制
5) summer maize-winter wheat rotation system
夏玉米-冬小麦轮作制
6) winter wheat-summer maize rotation system
冬小麦-夏玉米轮作体系
1.
Fixed-site field experiment was carried out in winter wheat-summer maize rotation system in Wuqing District of Tianjin to study the effects of different fertilizer formulations on summer maize yield,comprehensive utilization efficiency of fertilizer,economic benefits and optimum fertilizer application rates.
据此确定了冬小麦-夏玉米轮作体系中夏玉米的动态平衡施肥配方为1︰(0。
补充资料：夏后
1.见"夏后氏"。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条