(1)适时播种,合理密植:菜用大豆适时播种期为7月20日左右,为了保全苗壮苗,播种前应做到:①选择土层深厚,中等肥力,排灌条件好的田地作“秋繁种”基地;②头季夏收种子应采用在阴凉处阴干方式,使种子
选地整地 1、仙人掌喜阳光,怕水湿、耐瘠薄,根部不能长期浸水,所以土壤不能窝水、滞水。因此,选择栽植仙人掌的土壤时,首先要考虑
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