不同生产模式对马铃薯产量和水分利用效率的影响

针对定西马铃薯产业连续集约化种植造成产量降低、品质降低以及土壤污染等问题,通过大田试验,研究了不同种植模式对马铃薯产量和水分利用效率的影响,结果表明：在全生育期,不同处理土壤含水量在0~100cm呈现‘先增加后减小’的趋势变化,其中60~80cm土层土壤含水量最高,但各处理无显著差异,T3和T4处理块茎产量显著高于其他处理,与CK、T1和T2处理相比,块茎产量分别高25.00%、15.63%、17.12%和27.24%、17.70%、19.22%,说明在干旱半干旱定西市,T3和T4处理是最佳马铃薯种植模式。

Effects of Different Planting Patters on Potato Yield and Water Use Efficiency

Aiming at the problems caused by continuous intensive cultivation of potato industry in Dingxi, such as yield reduction, quality reduction and soil pollution, the effects of different planting patterns on potato yield and water use efficiency were studied through field experiments. The results showed that: In the whole growth period, different soil moisture content in 0 ~ 100 cm "first increases and then present the trend of change, including 60 ~ 80 cm soil layer soil moisture content is highest, but the treatment had no significant difference, T3 and T4 treatment tuber yield significantly higher than other treatment, compared with CK, T1 and T2 processing, high tuber yield respectively 25.00%, 15.63%, 17.12% and 27.24%, 17.70%, 19.22%, in arid and semi-arid in dingxi city, T3 and T4 treatment is the best potato planting patterns.