Apples are one of the main agricultural crops on China s Loess Plateau.This study took a Fuji apple orchard in this region as a test object to study the effects of different patterns of surface mulching(clean tillage,grass cover,film mulching,straw mulching,and gravel mulching) on the soil hydrology and apple yield.Based on soil water storage,three seasonal periodscan be recognised annually;Water decreases in spring & summer,increases in summer & autumn,and stabilizes in winter & spring.Within the 0-600 cm ...
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