灌溉

However,K may be fixed and made unavailable to plants by certain clay minerals in the soil.

多数钾肥是溶于水的，因此，如果有适当的降雨或灌溉水，钾就能迅速地被植物吸收。

Through pot cultivation of different sewage irrigation, we know that potherb mustard would be turning color in nerve and drying out and without green in Cd-contaminated soil. And in the Pb-contaminated soil, the potherb mustard would be wilt and lost greenand leaves appeared reddish-brown patchs and new leaavs curls.

通过不同水质污水灌溉的生物盆栽试验，可知雪里蕻受镉污染的受害症状主要表现为沿叶脉变色，失水失绿，受铅污染的受害症状主要表现在失绿萎蔫，有红褐色斑块，新叶卷曲。

The principal PVC products in which lubricants are used include rigid pipe and conduit, which are used for the transport of gas, waters, irrigation piping, drain, waste and vent, sewer drains, and conduits.

添加了润滑剂的主要 PVC 产品，包括钢管和管道，传输气体、水、灌溉、管道运输、排水、废水废气、污水、喷泉等。

Some of the changes are influenced by irrigation schemes, like the Aral Sea in central Asia which has shrunk in size by three-quarters in the last 40 years as waters have been diverted to help a cotton-growing scheme.

部份改变则是灌溉计画所造成；因栽棉计画而改道的水流，导致中亚的咸海面积过去四十年缩小了四分之三。

A county-wide dynamic optimization model is used to evaluate the potential contributions associated with the adoption of sophisticated irrigation system technology and anticipated biotechnological advances in crop production on ground water conservation.

描述：采用一个全国性的动态优化模型来估计复杂灌溉系统技术带来的潜在作用，并预测生物技术在农作物生产中利用地下水方面的好处。

Crop sensitive index crop water production function deficit irrigation

作物敏感性指标；作物水分生产函数；非充分灌溉

In order to study the relationship between vegetable quality and water, nutrition supply, the effects of different water and nutrition supply on the growth of lettuce, melon were investigated, and the effects of grafting on quality of cucumber, melon and watermelon were studied.

根据蔬菜生产实际和消费者对蔬菜营养品质的需求，重点开展了嫁接对瓜类蔬菜品质、不同水肥条件（不同灌溉模式、营养条件）与生菜和甜瓜品质等方面的研究，提出了适合上述蔬菜品质形成的高效水肥调控技术。

County is located in Hebei Plain, light and heat sufficient underground water is rich in beneficial irrigation, another benefit Shijin irrigation drainage and agriculture is developed.

县境位于河北平原，光热充足，地下水丰富，利于井灌，又有石津渠灌溉之利，农业发达。

Based on experience and lesson from both oversea and China, the model of Self-Financing Irrigation and Drainage District which suitable for situation of China was discussed, including its conception, demand, implementation and impact etc.

在总结国内外经验与教训的基础上，系统分析了适合我国国情的参与式灌溉管理模式的概念、要求、实施及其影响等。

The authors discuss the necessity and feasibility of implementing controlled drainage in Yinnan irrigation district based on present situation and put forward methods and steps about how to implement controlled drainage in Yinnan irrigation district.

根据宁夏银南灌区目前灌溉排水的现状，论证在该灌区实施控制排水的必要性和可行性，并且提出了在银南灌区如何实施控制排水的方法和步骤。

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。