2006•Journal of Irrigation and DrainageRequires access
Effect of Irrigation Methods on Soil Temperature under Protected Cultivation
Na Su
Open publisher page 1 citations
Abstract
Seep irrigation and drip irrigation can increase soil temperature compared with furrow irrigation,and this effect in upper soil layer is greater than that in deep soil layer.The daily mean temperature in seep irrigation and drip irrigation is 1.79 ℃ and 2.70 ℃ higher than that in furrow irrigation respectively,and this variance is significant.The daily variation after one day irrigation between 0~20 cm soil layer is: between 10:00~18:00,soil temperature of different soil layer in seep irrigation and drip irrigation is higher than that in furrow irrigation,and the result is reverse between 06:00~08:00 and 18:00~22:00.It is the most significant between layer of 5～15 cm and the appearing time of maximum temperature is lagged 2 h among seep irrigation,drip irrigation and furrow irrigation.