橄榄来得便宜一些，桔子需要人工灌溉。
灌溉也没用：气候变化对人工灌溉区比雨水浇灌区的打击更大。
Irrigation may not help: climate change will hit irrigated systems harder than rain-fed ones.
目的描述人工灌溉区钉螺生长繁殖特征，为实施生态学方法控制钉螺提供理论依据。
Objective to explore the rule of growth and multiplication of snails in man made irrigation, and thus to provide evidence for snail control with ecological method.
研究了新疆干旱环境人工灌溉条件下甜菜营养生长规律、个体营养生长、生长中心转移及糖分积累，并对甜菜高产高糖栽培进行了探讨。
The vegetation growth regularity of population and individual growth center transfer and sucrose accumulation were studied under the irrigation in Xinjiang drought area.
同时模型根据土壤水贮量变化来模拟月森林水量平衡，它详细模拟了大气降水，地下水、人工灌溉、林分蒸腾量、渗透水量和土壤水之间的动态变化。
At the same time, in view of the change of soil water storage, it simulates dynamitic change among atmospheric rainfall, groundwater, irrigation, forest transpiration, deep drainage and soil water.
氮素是植物必要的营养元素之一，其主要来源有：生物固氮作用、降雨和灌溉水以及人工施肥。
Nitrogen for plant nutrition is mainly obtained from three sources: nitrogen-fixing plant, rain water and manure.
在荒漠植被难以自然发生的次生裸地，当不易获得水源时，可采用无灌溉人工植苗造林和直播造林方法进行植被恢复重建。
Planting and seeding can restore and reconstruct vegetation in without irrigation region on condition that water is short in secondary bare land.
高尔夫球场人工湖水域既是球场的水景景观又是灌溉水的重要来源。
The artificial lake of golf course are not only the water landscape, but also an important source of irrigation water.
本实用新型不需动力及人工操作，适合在有流水的地方灌溉及制作瀑布使用。
Power and manual operation are not needed by the utility model, and the utility model is suitable for the irrigation of places with the water flows and the make of waterfall.
应用表明，采用潮汐灌溉方式的作物，其生长量明显优于人工浇灌方式，还可减少用水量33%，提高水分利用效率40%，还可减少氮肥使用量。
This method can decrease water quantity 33%, promote water using efficiency 40% compared with pouring irrigation, can also decrease nitrogen fertilizer quantity as well.
大中型灌区大约占全国灌溉面积的47%，另外有大约26%灌溉是由农民打井人工浇灌的。
Large and medium systems serve about 47% of total irrigated area in the country; 26% is irrigated by tube Wells managed directly by fanners.
提出了变频自动控制在节水灌溉中的应用方案，改变了传统的调整阀门开度及人工启停电机来满足供水需要的操作方法。
The traditional method to adjust the valve opening and to turn on or turn off the pump engine by people to meet the need of water supply was improved.
提出了变频自动控制在节水灌溉中的应用方案，改变了传统的调整阀门开度及人工启停电机来满足供水需要的操作方法。
The traditional method to adjust the valve opening and to turn on or turn off the pump engine by people to meet the need of water supply was improved.
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