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1早疏苗并适时定苗。当幼苗长到3厘米左右时进行间苗定苗。一般整个生长期耕、松土、除草2~3次。第一次多在幼苗顶土时、用轻型手扒锄或小耙进行轻度破土皮松土,消除板结层。同时拔除早出土的杂草,以利幼苗出土茁壮生长。第二次于苗高2~3厘米时进行,而条播的可
1 early sparse seedlings and timely Dingmiao. When the seedlings grow to about 3 cm Miao Miao for seedlings. The whole growing period of tillage, loose soil, weeding 2 to 3 times. For the first time in the seedling top soil, light soil scraping hoe or small rake for light soil breaking loose soil, eliminate the lamellar layer. At the same time remove the early weeds excavated to facilitate seedlings unearthed robust growth. The second time in 2 ~ 3 cm when the height of seedlings, and the broadcast can be