| 合理布配滴灌滴水面积 |
| 添加时间：2017/5/26 14:30:57 浏览次数： |
| 合理布配滴灌滴水面积 Reasonable cloth deserves drip irrigation area 滴水灌溉是水在其重力作用下和土壤颗粒吸力及水对土壤所含溶质的渗透力的作用下，对土壤向下和水平方向产生渗透湿润的过程。它属于局部滴灌，以滴头小流量为主要特征，从而达到生育期滴水次数多，延续时间长，亩用量少，滴水周期短。准确控制水量和滴水湿润范围，并能按作物不同生长期的需求把水和养分直接输送到作物根系集中的土层中（0-40cm的土层）提高肥水有效使用率，增加作物产量。 Drip irrigation is water under the gravity and the suction of soil particles and water on the soil solute contained under the action of seepage force, on the soil down and horizontal permeability, wet process. It is a local drip irrigation, with the small flow rate of the drop of the head is the main feature, which can reach the period of the increase of the period of the period of the growth period, the long time, the amount of the mu is low, the drip cycle is short. Accurate control of water and dripping wet range, and can meet the requirements of crops in different growth period of water and nutrients directly to the crop root in the concentration of soil (0 to 40 cm soil layer) improve the fertilizer utilization rate, increase crop yield. 滴灌面积合理布配，是作物提高水肥利用率和产量，抑制土壤次生盐碱化的关键措施。在布配滴水面积时，要根据水量的大小和水质质量（井水、河水）选择不同流量的滴头，要根据膜下滴灌作物根系浅，分布集中（0-40cm土层内有85%以上的根系），需要肥水多的特点，合理面积布配，达到高压运行，准确控制滴水湿润范围，土壤含水量均匀一致，作物生长整齐一致，实现高产稳产。 It is the key measure to increase the efficiency and production of water fertilizer and to restrain the secondary salinity of soil. When the cloth with water area, according to the size of the water quantity and water quality (well water, river water) to select different flow drops head, according to the film with drip irrigation crops root shallow, distribution (0 to 40 cm soil layer containing more than 85% of the root), need water, the characteristics of cloth with reasonable area, reach high pressure operation, accurate control scope of dripping wet, uniform soil water content, crop growth and uniformity, achieve high and stable yield. |
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