新疆农业科学2018，Vol.55Issue(3)：414-419,6.DOI:10.6048/j.issn.1001-4330.2018.03.003
滴灌棉田非生育期春灌温度和灌水量对土壤盐分的影响
Effects of Spring Irrigation Temperature and Water on Soil Salinity during the Non-crops Growing Season in Cotton Field with Drip Irrigation
摘要
Abstract
[Objective] The long-term drip irrigation in Xinjiang oasis irrigation area resulted in the ac-cumulation of salt in the soil, and the rational irrigation in the non-crops growing season has a certain leac-hing effect on the soil salt. To study the effect of irrigation temperature and irrigation water on soil salinity and to provide a reasonable irrigation scheme for irrigation area in non-crops growing season. [Method]Six irri-gation schemes for cotton fields were formulated, field experiments were carried out in Korla area, Bazhou, Xinjiang, and the soil salt content under these six irrigation schemes was detected. Finally the effects of irriga-tion amount and temperature on soil salinity in non-crops growing season irrigation were analyzed through the experimental results. [Result]Among the three irrigation water schemes:2,250 m3/hm2 , 1,800 m3/hm2 and 1,350 m3/hm2 , 2,250 m3/hm2 was a better one. The effect of desalination under the situation that ground temperature was 5℃, the atmospheric temperature at 12℃ was better than that when the ground temperature was 10℃ and the effect of irrigation at 17℃ was even better. the atmospheric temperature is 17℃.[Conclu-sion]The results showed that the more irrigation water, the better soil leaching effect. Under the same irriga-tion amount, temperature has a great influence on the desalination effect of soil. Besides, due to the strong e-vaporation of the experimental area, the rate of salt back to soil is very fast, so the spring irrigation time should not be too early.关键词
滴灌棉田/非生育期春灌/土壤盐分/温度/灌水量Key words
drip irrigation in cotton field/non-crops growing season spring irrigation/soil salt/tem-perature/irrigation water分类
农业科技引用本文复制引用
岳春芳,孙珍珍,李艺珍..滴灌棉田非生育期春灌温度和灌水量对土壤盐分的影响[J].新疆农业科学,2018,55(3):414-419,6.基金项目
新疆自治区"十二五"重大专项"绿洲灌区节水安全关键技术研究与示范"(201130103-3) （201130103-3）
Key Projects during the"12th Five-Year Plan" Period of Xinjiang Uygur Autonomous Region of China"Research on and Demon-stration of Key Techniques of Water Saving and Safety in Oasis Irrigation District" (201130103-3) （201130103-3）
