不同玉米秸秆覆盖对农田土壤水热及马铃薯产量的影响

通过不同模式玉米秸秆覆盖种植马铃薯,探讨不同覆盖模式种植对土壤水热和马铃薯生长的影响,筛选出定西旱作农业区玉米秸秆覆盖马铃薯种植的最佳模式。结果表明,秸秆覆盖在马铃薯生长过程中对土壤表层的温度和水分调控明显,能够降低土壤温度、增加土壤水分,有利于马铃薯的生长;与传统露地种植相比较,秸秆覆盖栽培平均增产15.6%,马铃薯商品属性提高。

Effects of Different Corn Stalk Covering on Soil Water and Heat and Potato Yield in Farmland

Through different types of corn stalks covered with potato planting, the effects of different mulching patterns on the soil water and heat and potato growth during potato planting were discussed, and the best mode of corn stalk-covered potato cultivation in Dingxi dry farming area was screened out ,The results showed that the straw cover increased the temperature and moisture of the soil surface during the growth of the potato, which could reduce the soil temperature and increase the soil moisture, which was beneficial to the growth of the potato Compared with the traditional open field planting, the yield of cover increased by 15.6%. Straw mulching can effectively adjust the soil temperature during the expansion period, which is conducive to the expansion of potato cakes and improve the commodity properties of potatoes.