灌溉

As populations grew, they adopted more intensive methods of cultivation-composting, terracing, irrigation.

随着人口增加，他们采用更精密的耕种方式：堆肥法、梯田、以及灌溉法。

This paper puts forward an optimal design method for designing standards of irrigation pivot engineering in the inland arid area on theb asis of the system analysis theory.

本文根据系统分析的理论，提出一种内陆干旱区灌溉枢纽工程设计标准优化设计方法。

The result showed that when soil moisture content is 90% of the relative moisture content,it resulted in an increase in plant dry substance accumulation and strong seedling index ,a reinforce in net photosynthetic rate and root vitality ,and a decrease in transpiratory rate ,compared with the nmrmal irrigation which is 100% of th...

结果表明，土壤含水量为相对含水量的90％（PF值1.6），较常规灌至土壤相对含水量100％，植株干物质积累增大，壮苗指数提高，光合速率、根系活力增强，蒸腾速率降低。因此认为番茄苗床灌溉土壤含水量最佳上限为90％。

He is responsible for the Turkana Pipeline, which has brought irrigation to the entire Northern Frontier District.

他负责了图尔卡那湖[注2]的水利管道工程，那可是灌溉了整个北部边境区域的大工程。

In this paper, in vitro umu/SOS test and in vivo Comet assay were used to assess accumulation of genotoxic substances in the soil irrigated with reclaimed water in suburbs of Beijing.

本研究利用离体umu/SOS测试与活体蚯蚓彗星试验评价北京市郊区再生水灌溉土壤中遗传毒性物质的积累。

Then the sustainable development of Qitai artificial oasis was discussed. Researches showed that the oasis development has gone through three phases: The first was harmonic stage before the middle of 20, the oasis developed according to water resources. The second was unharmonic stage from 1950's to 1980's because of unreasonable policies, that is cultivated area enlarged rapidly and water resources exploited backward. As a result, land output was lower, and environment destroyed heavily. The third stage is after 1980's, the new fragile balance between oasis and its environment was established on the base of the more and more ground water utilization.

研究认为奇台人工绿洲人地关系发展经历了三个阶段：第一阶段是20世纪50年代以前，&以水定地&的相对协调发展时期；第二阶段是20世纪50-80年代人地关系发展失衡时期，人工绿洲迅速扩张，水资源开发滞后，耕地因缺水灌溉而成为低产田，环境破坏严重，人地发展失衡的原因是政策因素；第三阶段是20世纪90年代以来人地关系脆弱平衡时期，决定其平衡的因素是不断增加的地下水开采量。

To study the effects of placement of water and nitrogen on transport and utilization of water and nitrogen in maize root zone. Experimental treatment have fertilizing in the irrigated furrow and unirrigated furrow.

为研究灌水和施氮位置对玉米根区水氮迁移和利用的影响，通过春玉米水氮同区、异区隔沟灌溉试验，研究了不同水氮处理根区土壤水氮迁移和水氮利用规律。

Grain yield per hectare is the most important factor in the method of the gray system analysis. There was significant correlation between effective irrigated area, the amount of fertilizer applied, mechanical power and the grain yield. The area of grain and the population of agriculture are factors that affect grain production. The correlation coefficient of natural resources and grain production changes unstably.

单产与粮食产量始终保持很高的关联度；有效灌溉面积、实际机耕面积、化肥施用量、农村用电量和农机总动力等农业投入对粮食产量提高影响重大；耕地面积和劳动力对粮食产量具有一定的制约；自然条件与粮食产量的关联度剧烈变动。

In field and pot experiment to research spatial coupling of nitrogen fertilizer and irrigating water in semi-arid area in North China under unsufficient irrigation.

主要结论如下：（1）在干旱半干旱地区，进行夏玉米生产，大幅度节约灌溉水用量（全生育期灌水量从2250 m3/ha 降低到1200 m3/ha、1125 m3/ha、600 m3/ha），对作物产量影响较小，产量下降幅度在10%-15%之间。

Winemaking techniques are a factor also as are the viticultural techniques of the vineyard, such as dry irrigation or minimal or non use of pesticides.

酿酒技术和葡萄栽培技术一样，也是其中一个因素，如干灌溉或尽量少使用杀虫剂或不使用杀虫剂。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。