灌溉

Generally, the FD treatment has decreased the densities of natural enemies and saprophagous insects .

覆膜旱作田天敌及腐食者密度低于田。

They have built canals to irrigate the desert.

他们建造成以沙漠。

There the irrigation canal links up with the reservoir.

这条在那里与库连接起来。

New add combinational revolving support ridger, make irrigating more saving water, convenient.

五、新增组合旋转扶垄器，使更加节、方便。

Clear water gushed into the irrigational channel.

清澈涌了道。

The fields are irrigated so that the crops can grow.

田地了，庄稼便能生长。

The farmer dug several trenches to irrigate the rice fields.

这个农民挖了好几条沟以稻田。

The set of opinion was toward building a new irrigation canal.

大家意见倾向于修建一条新。

The Yangtse River irrigates vast stretches of farmland along its course.

长江着两岸大片农田。

The land is watered by these rivers.

这片土地受这些河流。

The government authorized an irrigation project.

政府批准了一项工程。

Irrigation is important for farming.

对农业是非常重要。

Furthermore, N and P fertilizer application rate could be decreased accordingly to optimize fertilizer management when contributions from eutrophied irrigation water were taken into consideration.

在利用当地富营养化河稻田土壤时可适量减少肥料施用量、优化氮磷肥料管理。

Overpumping groundwater for drinking water and irrigation has caused water levels to decline by tens of metres in many regions, forcing people to use low-quality water for drinking.

过度抽取地下做为饮用和用来在许多地区已经使位下降了几十米，迫使人们使用质量较差来做为饮。

The paper analyzes the soil water dynamics and water requirement law of alfalfa,feed maize and ensile maize under 3 kinds of water-saving irrigation conditions through experimental study on the crops.

对节条件下紫花苜蓿、饲料玉米和青贮玉米需量了试验研究,分析了不同平下3种饲草料作物土壤动态和需规律。