宁南山区马铃薯移动滴灌补水技术研究

目的]为提高旱区马铃薯的产量提供科学依据。方法]以＂户用型移动式滴灌装置＂为补水设施,对宁南山区马铃薯进行定期补灌,研究不同处理（①不补水（CK）;②补水30m3/hm2;③补水60m3/hm2;④补水90m3/hm2）对马铃薯产量的影响。结果]使用＂户用型移动式滴灌装置＂补水可明显提高宁南山区的土壤含水量;灌水30、60、90m3/hm2的处理马铃薯产量分别增加了7032.5、13292.5、13637.5kg/hm2,分别比对照增加了41.0%、77.5%和79.5%;3个处理马铃薯产值分别增加了5626、10634、10910元/hm2,产投比分别为4.02、6.26、5.07。结论]宁南山区马铃薯每次补水量以60m3/hm2为宜。

Study on Water Supplement Technology with Mobile Drip Irrigation Device for Potato in Mountain Area of Southern Ningxia

Objective]The study was to provide the scientific basis for increasing the yield of potato in drought areas.Method]With the household mobile drip irrigation device as the water supplement facilities,the potato in mountain area of southern Ningxia was regularly irrigated,and the effects of different treatments (①without water supplement(CK);②water supplement with 30 m~3/hm~2;③water supplement with 60 m~3/hm~2;④water supplement with 90 m~3/hm~2) on yield of potato were studied.Result]The soil water content in mountain area of southern Ningxia could be obviously increased with the household mobile drip irrigation device.The yield of potato in treatments with irrigation amount of 30,60 and 90 m~3/hm~2 were increased by 7 032.5,13 292.5 and 13 637.5 kg/hm~2 resp.(being increased by 41.0%,77.5% and 79.5% than that of CK resp.).The output value of potato in those 3 treatment was increased by 5 626,10 634 and 10 910 yuan/hm~2 resp.with value to cost ratio of 4.02,6.26 and 5.07.Conclusion]The suitable water supplement amount each time for potato in mountain area of southern Ningxia was 60 m~3/hm~2.