Effects of Different Water and Fertilizer Management on Soil Enzyme Activities and Yield of Potato
LU Yun
LIU Yuxia
Abstract：In order to find the suitable water and fertilizer management mode for potato,the effects of sprinkler irrigation and fertilizer split application,drip irrigation and fertilizer split application,drip irrigation and integration of water and fertilizer on activity of soil enzyme and yield of potato were studied with flood irrigation and fertilizer split application as control(CK) through field experiment.The results showed that,compared with CK,drip irrigation and integration of water and fertilizer,drip irrigation and fertilizer split application,sprinkler irrigation and fertilizer split application increased soil enzyme activities;the order of influence degree was drip irrigation and integration of water and fertilizer ＞ drip irrigation and fertilizer split application ＞ sprinkler irrigation and fertilizer split application ＞ CK,drip irrigation and integration of water and fertilizer could significantly improve the soil enzyme activity in the late growth stage.Finally,the potato yield and commodity rate of fertigation treatment was significantly higher than the other treatments,the yield increased by 49.07％,27.94％,14.91％,commodity rate increased by 19.41,10.36,4.72 percentage points compared with CK,sprinkler irrigation and fertilizer split application,drip irrigation and fertilizer split application respectively.
Keywords：drip irrigation and integration of water and fertilizerpotatosoil enzyme activityyield
Publication Date：2017-08-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：4( 57-60 )