【摘要】 旱地果园秸秆覆盖可明显提高土壤含水量、增高树体水势、改善树体水分状况,从而显著提高苹果树的光合速率.覆盖2个月可提高光合速率35.06%,覆盖14个月可提高光合速率48.54%,因此覆盖对早地苹果树的生长发育有重要作用.更多还原

【Abstract】 Studies on the effect of straw-mulching on the soil moisture, tree moisture content and the photosynthtic rate were carried out. Results showed that straw-mulching significantly increased the soil moisture, the water potential in the tree, and hence the photosynthetic rate in apple trees. The photosynthetic rate was increased 2 months after straw-mulching by 35. 06% and 14 months after straw-mulching by 48. 54%.更多还原