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为寻求提高砀山酥梨授粉坐果率和果实品质的途径,我们于1997～1998年在本场梨园进行了该项试验,现将试验结果总结如下。 一、材料与方法 试验设在本场一队25小区,土壤属黄河故道冲积的潮土类泡沙土,果园管理水平较高。供试酥梨树为42年生盛果期树,树体健壮,树势
In order to seek ways to improve the pollination rate and fruit quality of Dangshan Su pear, we conducted this experiment in this field between 1997 and 1998, and the test results are summarized as follows. First, the material and method test Set in the field of a team of 25 communities, the soil is alluvial sand alluvial sand soaked in the old course of the Yellow River, orchard management level is high. Pear for the test for 42-year-old Sheng Shengguo tree, tree robust, tree potential