蔬菜最佳灌溉方式的选择（Selection of the best irrigation method for vegetables）.doc

蔬菜最佳灌溉方式的选择（Selection of the best irrigation method for vegetables） Since ancient times, the level and ability of vegetable growers to irrigate crops has been crucial to his ability to survive fierce competition. Irrigation science develops very fast in recent years, the hardware solution of establishing irrigation scheme ideal model, hardware solutions to achieve effective irrigation for crops, thereby promoting crop growth, ensure the high efficiency, high yield. Greenhouse irrigation and cooling techniques have become highly specialized. As growers face pressure from growing supplies of high quality crops, irrigation technology is advanced or not, determining crop yield and quality, and determining the competitiveness and profitability of growers. In order to provide a better understanding of the types of technologies currently available, this article examines several techniques for drip irrigation, sprinkler irrigation, and cooling. Soil and drip irrigation: Drip irrigation technology and advanced emitter solutions have transformed the way vegetables are grown. Irrigation patterns are determined by the climate and soil type around the greenhouse. One of the most effective means of water supply is irrigation through many drops. When using a new emitter, it is important to consider the effect of constant dripping and pulsed drip. These two methods are common in greenhouse irrigation. The most accurate and effective irrigation schemes include the use of pressure compensated emitters. When using continuous drip irrigation and drip irrigation pulse, an anti siphon performance can ensure the vacuum in the end will not be such a vacuum irrigation, sand and other particles will be sucked into the drop head so as to reduce the efficiency of the emitter. In addition, the entire drip irrigation equipment should have a wide channel equipped with HEPA filters on each emitter. In this way, the drip irrigation equipment can be filled with water dripping by the circulation wate