2) furrow planting
垄沟种植
1.
The study concerned about four cultivation modules(no mulch,straw mulch,plastic film mulch and furrow planting),three nitrogen fertilizer levels(0,120 and 240 kg N/hm2) and two wheat densities(seed rate of 180 and 225 kg/hm2).
59 kg/hm2,且主要积累在80-160 cm土层,土壤氮库不仅明显,且残留比前3年土壤剖面显著下移(前3年主要累积在100 cm),差异达显著和极显著水平;不同栽培模式和种植密度0-200 cm土层硝态氮残留累积规律及其小麦籽粒吸氮量基本相似,排序均为:地膜覆盖>常规种植>秸秆覆盖>垄沟种植;随施氮量的增加土壤硝态氮残留量也相应增加,N0处理0-200 cm土壤平均硝态氮残留量为57。
3) ridge-furrow system
沟垄系统
4) Ridge with plastic film mulching-furrow irrigation
垄膜沟灌
5) wide ridge and furrow irrigation
宽垄沟灌
1.
As a cultivation and irrigation method for field crops,wide ridge and furrow irrigation have already been paid attention gradually.
宽垄沟灌作为一种大田作物栽培灌水方式已逐步受到关注。
6) rainwater harvesting of ridge and furrow
垄沟集雨
补充资料：垄沟
垄和垄之间的沟，用来灌溉、排水或施肥。
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