The results indicate that the nitrate-N leakage loss under the root zone caused by fertilizer irrigation could creat the pollution of shallow groundwater in Tangshan agricultural area.
计算结果表明，唐山农业区灌溉施肥引起根区以下硝态氮渗漏损失可造成浅层地下水的污染。
Groundwater table is shallow in Hetao irrigation district, and groundwater exploitation may decrease water demand from Yellow River to ensure water supply in lower reaches.
内蒙古河套灌区地下水位浅，合理利用地下水可以减少灌区引黄水量，保证黄河下游用水。
An automatic control system of field irrigation has been studied for. Reasonable irrigation and saving water and fitting to water-saving shallow and wet irrigation scheduling.
为做到合理灌溉，节约用水，配合采用节水型的浅湿灌溉制度，研制了一种田间灌溉自动化控制系统。
The content of soil heavy metals and shallow underground water quality were not greatly influenced by making use of the renovated water for irrigation.
使用再生水对土壤中重金属含量及示范区浅层地下水水质未造成明显影响。
The results indicate that five related water commute complex and frequent in Hetao irrigation area which have unique characteristics of its shallow groundwater.
研究结果表明，在以浅地下水位为主要特征的河套灌区，农田间“五水”转化频繁而复杂。
Because the infiltration irrigation through shallow furrow reduces the moisture in rice field, the disease harm to the rice is decreased, and the growing vigor of the leaves is increased.
浅沟渗灌栽培可降低田间的空气湿度，增强通风透光性，减少水稻病害，从而提高叶片的生活力；
The mechanism on saving water and increasing yield to the southern direct sowing rice was studied by the technology of infiltration irrigation through shallow furrow.
采用浅沟渗灌技术，对南方直播水稻的节水增产机理进行了研究。
Whether the shallow layer of soil or the deep layer of soil, from 8:00 to 20:00, each treatment at different time, soil temperature were inverse ratio with water irrigation amount.
无论土壤浅层还是土壤深层，各不同处理在8：00 ~ 20：00之间各个时刻土壤温度的高低都与灌水量的多少成反比。
To exploit and utilize shallow groundwater including brackish water and semi-saline water for drought combat and irrigation in spring;
春季开发利用地下水包括微咸水和半咸水抗旱灌溉。
To exploit and utilize shallow groundwater including brackish water and semi-saline water for drought combat and irrigation in spring;
春季开发利用地下水包括微咸水和半咸水抗旱灌溉。
应用推荐