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The most remunerative growing has shifted from the traditional southeastern producing region to the irrigate d lands of the Southwest.

经济效益最好的植棉业已从传统的东南棉区转移到西南部的大片灌溉地。

This is discovered and put forward firstly by this paper, it established theory base for seting up the binary structure improvement tier alkaline soil improving, and a bit of times without number washing flooding. In improvement process of alkaline soil, the seepage capacity of gypsum was preponderated over 40% than the used capacity of gypsum.

关于石膏混合层与非混合层,在土壤改良过程中,各自具有不同量变到质变的规律,是本文首先发现并提出来的:它为建立碱土改良的二元结构计划改良层并与小定额分次冲洗相结合灌溉,奠定了理论基础。

Beginning with the configuration effect of price on agricultural water resources,the authors analyzed the current price problem of agriculture water saving and prognosticated the inevitable trend of feebased agricultural water in china.

我国的农业灌溉用水过程中,除渠灌区的农业用水目前已经收取一部分水费外(此费用实际上为部分水利工程费用),在井灌区的农业用水很多地方还未收取水费。

The results showed apple leaf marginal withered was caused by single salt poison in soil. And that the origin of soil salt was irrigated by tiny salt water or middle degree salt water again and again. Along with irrigated number of year increasing, single salt poison tend towards more severity.

结果表明:苹果叶缘焦枯是由于土壤中单盐毒害所致,而土壤中盐分的来源是通过微咸水和中度咸水灌溉累积造成的,随年限的增加,危害日趋严重。

New sea 21 are varieties which can save water effeciently,so they have advantage in arid and semi-arid region.

新海21是节水型品种,能够较充分的利用有限的灌溉水,在干旱半干旱地区具有强大的优势。

Yellow river valley is typical arid and semiarid region in China.

黄河流域是我国典型的干旱和半干旱地区,流域缺水、支流水质污染和污水灌溉面积的增加对环境、农业生产和农产品安全造成了潜在的威胁。

As the traditional furrow irrigation, border irrigation, such as mode of operation results in water, the waste of labor, crop quality, the reasons for higher output, agricultural efficiency closely the needs of modern drip irrigation, sprinkler irrigation, such as advanced water-saving irrigation techniques.

由于传统的沟灌、畦灌等模式造成水、劳力的浪费,作物品质、产量不高等原因,现代效益农业密切需要滴灌、喷灌等先进的节水灌溉技术。

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。

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。

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。

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推荐网络例句

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。

However, to get a true quote, you will need to provide detailed personal and financial information.

然而,要让一个真正的引用,你需要提供详细的个人和财务信息。