生育期膜下滴灌不同盐度棉田土壤水盐分布研究

A Study on Moisture and Salt Regime of Cotton Fields with Different Salt Contents under Film Mulched Drip Irrigation during the Growth Period

以库尔勒包头湖农场膜下滴灌棉田为研究对象,选取3种不同盐度棉田土壤,通过对棉田整个生育期土壤水分和盐分含量的测定,对不同盐分棉田膜下滴灌各生育时期及各土壤层水盐分布的影响进行了研究。结果表明,含盐量较高的棉田土壤平均含水率较高且变化趋势较平缓;3种盐分土壤整个生育期含盐量变化趋势相同但含盐量较高的土壤变化幅度较大。

The cotton field with drip irrigation under film in Baotouhu farm of Korla city were investigated,three soils with different salt content were used to research the effects of the water salt distribution in different salinity and in different soil depths in cotton field under film mulched drip irrigation during different growing periods by measuring soil moisture and salt content in whole growth period.The results showed:Higher salt content caused higher moisture content and the change trend is more gentle;The changes of three different salinity soils in the growth period had the same trend but the higher salinity soil had more substantial change.