马铃薯水肥一体化技术应用试验研究

为科学评价水肥一体化技术在旱地作物上的应用效果，探索和掌握水肥一体化的相关技术参数，进行田间试验。研究在不同施肥水平下，水肥一体化技术对马铃薯生长的影响。结果表明：与常规灌溉（淋灌）施肥相比，水肥一体化技术可节水47．2％，并能提高马铃薯产量2．2％-4．4％，增加收入4071．32-9923．47Lqam2，增幅10．9％-26．5％：实行水肥一体化技术栽培的马铃薯，肥料用量比常规施肥水平减少40％-60％为宜。

Application experiment of integrated irrigation and fertilizer management on potato

In order to evaluate scientifically the application effect of integrated irrigation and fertilizer management on dryland crops,and explore and master the relevant technique parameters,the field experiment was conducted to study the effect of this technology on growth of potato under different fertilization levels.The results showed that compared with the conventional irrigation(spraying irrigation) and fertilizer treatment,integrated irrigation and fertilizer management could save water 47.2%,yield of potato increased 2.2%～4.4%,income increased 4 071.3 Yuan/hm2～9 923.4 Yuan/hm2 and increasing rate by 10.9%～26.5%;Therefore,40%～60% of conventional fertilizer applying amount is suitable when applying the new technology on potato.