甜菜纸筒育苗床下垫隔离层效果初探

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甜菜纸筒育苗移植栽培法做为提高甜菜单产的措施,已取得了显著成效。但在推广、应用这一新技术过程中,发现甜菜肥大直根的叉根率高,影响纸筒育苗甜菜的产质量。分析纸筒甜菜叉根率高的原因,主要是由于育苗后期幼苗的主根长度超过了纸筒长度,移栽时易伤断幼苗主根所致。为了探索防止育苗期幼苗主根过长,我们于1991年做了育苗床下垫隔离层试验。结果如下:材料与方法 Beetle tube seedling transplant cultivation as a measure to improve sugar beet yield, has achieved remarkable results. However, in the promotion and application of this new technology, it was found that the rooting rate of beetroot straightening root was high, which affected the yield and quality of paper-growing seedling beet. Analysis of the reasons for the high rate of paper beet rooting is mainly due to the length of the main root of the seedling in late seedling stage exceeds the length of the paper tube, easily transplanted off the main root cause of seedling injury. In order to explore the prevention of seedling seedling root is too long, we did nursery pad bedding isolation test in 1991. The results are as follows: Materials and methods
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