Its cropping season does not clash with other crops, and it requires only two rounds of irrigation, which farmers in small land holdings with little access to water can manage.
其种植季节与其他作物并不冲突，而且它仅仅需要灌溉两次，这样在小块土地上的农民不需要多少水就能够种植了。
For example, the farmland of winter wheat should be reduced in northern China, while southern China, rich in water resources, should maintain multi-cropping.
例如，中国北方的冬小麦农田应该减少，而在水资源丰富的中国南方应该维持多茬复种。
The paper analyzed the characteristics of the soil water movement of drip irrigation under mulch in different cropping patterns.
从土壤水流动系统的角度分析了膜下滴灌不同种植方式下土壤水流动系统特征。
The results above showed that water soluble carbohydrates, amino acids and organic acids from continuous cropping soybean had significantly close correlation with root rot.
上述结果表明，大豆连作土壤有机化合物与根腐病发生存在极密切关系，它们是根腐病严重发生的重要物质诱因。
Allow users to customize output videos through adding water mark, cropping the area, and choosing special effect models of the SWF file.
允许用户通过自定义标记加水，种植面积，选择swf文件的特殊效应模型输出的视频。
The area of a basin may be limited by elevation changes, by the size that can be covered uniformly by the available water supply on permeable soils, or by cropping factors.
格田面积受限于地面高度的变化、现有水量均匀覆盖于渗透性土壤的面积大小及耕作因素。
Allelopathic effect of root exudates on pathogenic fungi of root rot in continuous cropping soybean was studied by sand culture, water culture, and indoor culture experiments.
采用砂培、水培和室内培养等试验方法研究了连作大豆根分泌物对根腐病病原菌的化感作用。
The results implied that cropping system and water status of previous cropping impacted N2O emission from paddy soil.
轮作制度和前作水分状况极大地影响稻田N2O的排放。
The work may help water and energy managers to project the impact of climate change on these resources and how best to manage water storage and cropping to minimize the adverse impacts.
这项工作可能有助水资源和能源的管理者们预测气候变化对这些资源的影响，并合理地配置水资源的储备，将不利的影响减到最低。
The effects of Pear-Wheat inter-cropping with big spacing and several rows on water, yields and land utilization in the Huang-Huai-Hai Plain, were studied in this paper.
对黄淮海平原农区宽带距多行带梨麦间作系统水分效应、产量效应与土地利用效应进行了研究。
It was significant to study the nitrogen and phosphorus losses from surface runoff in double cropping rice filed for guiding the rational fertilizer and protecting water environment.
研究双季稻田不同施肥量处理的氮磷降雨径流损失规律，对于指导双季稻合理施肥、保护水环境具有重要的现实意义。
The main results are as follows:1. The water equilibrium characters and efficiency of different cropping systems was researched in Luoyang.
主要结论如下：（1）对洛阳地区三种主要种植制度下的农田水分平衡状况及效益进行了全面系统分析。
The main results are as follows:1. The water equilibrium characters and efficiency of different cropping systems was researched in Luoyang.
主要结论如下：（1）对洛阳地区三种主要种植制度下的农田水分平衡状况及效益进行了全面系统分析。
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