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灌溉田。

They have built canals to irrigate the desert.

他们建造成水渠以灌溉沙漠。

There the irrigation canal links up with the reservoir.

这条灌溉渠在那里与水库连接起来。

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

五、新增组合旋转扶垄器，使灌溉更加节水、方。

Clear water gushed into the irrigational channel.

清澈水涌进了灌溉渠道。

The fields are irrigated so that the crops can grow.

田地灌溉了，庄生长。

The farmer dug several trenches to irrigate the rice fields.

这个农民挖了好几条沟以灌溉稻田。

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

家意见倾向于修建一条新灌溉渠。

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

长江灌溉着两片农田。

The land is watered by these rivers.

这片土地受这些河流灌溉。

The government authorized an irrigation project.

政府批准了一项灌溉工程。

Irrigation is important for farming.

灌溉对农业是非常重要。

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水进行稻田土壤灌溉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.

过度抽取地下水做为饮用水和用来灌溉在许多地区已经使水位下降了几十米，迫使人们使用质量较差水来做为饮水。

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.

对节水灌溉条件下紫花苜蓿、饲料玉米和青贮玉米需水量进行了试验研究,分析了不同灌溉水平下3种饲草料作物土壤水动态和需水规律。