【摘要】 通过冬小麦沟播和垄作试验,结果表明,沟播小麦不同灌水处理在0 12 0cm土壤层次中水分均呈下降趋势,0 90cm层次土壤水分下降幅度较大,而10 0 12 0cm层次下降幅度较小。从沟播和垄作麦田土壤贮水量差值的分析可以看出,沟播麦田土壤贮水量要明显高于垄作麦田,沟播的同一时期沟垄间的土壤水分差异在0 90cm土层要低于垄作的,而10 0 12 0cm土层就极其相近。从沟播和垄作的土壤水分纵深分布上比较,在各处理均没有灌水的情况下,沟播和垄作同一层次不同灌水处理的土壤水分极差均出现在0 10cm ,但随灌水处理灌溉次数的增加,沟播出现较大水分差异的土层下移,出现在10 2 0cm。更多还原

【Abstract】 Through the experiment of winter wheat on furrow planting and bed planting,the results showed that soil water of different irrigation treatments had fallen on 0~120 cm soil layer,the significant fall on 0~90 cm layer and the slight fall on 100~120 cm layer.Compared with bed planting,there was higher soil water storage in wheat furrow planting field,however,there was lower dispersion of soil water storage at the same stage on 0~90 cm layer of furrow planting field and the similar dispersion of soil water storage on 100~120 cm layer between furrow planting and bed planting pattern.Before the field was irrigated,there was the max dispersion of soil water on 0~10 cm layer in both furrow planting and bed planting field,and with the irrigations adding,the layer of the max soil water dispersion began to move down to 10~20 cm layer.更多还原