Title: Effect on Water Use Efficiency and Fertilizer Utilization Rate of Potato of Different Fertilizer Treatments Under Drip Irrigation
Abstract: In order to explore a new way of agricultural development in arid area,the effect of different fertilizer treatments on potato yield,yield components,water use efficiency,and fertilizer utilization rate under drip-irrigation was researched.The results showed that plant height,number of big(middle)potato and potato weight per plant increased significantly and the number of small potato decreased obviously under N3P2 K2(N326.25kg·hm-2,P2O5138kg·hm-2,K2 O 90kg·hm-2)treatment.Potato yield reached the highest level under N3P2K2 treatment which was 61 516kg·hm-2.Application N of 217.50kg·hm-2 was the highest utilization rate of nitrogen which was 39.31%.Application P of 69kg·hm-2 was the highest utilization rate of phosphate which was 16.09%.Application K of 45kg·hm-2 was the highest utilization rate of potash for 64.67%.Water use efficiency was obviously improved under N3P2K2 treatment and reached 80.17kg·hm-2·mm-2.
Publication Year: 2014
Publication Date: 2014-01-01
Language: en
Type: article
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