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1、适时早播。土壤温度稳定通过7℃即能播种。几年来种植合玉15号的播期实践证明,一般在4月25日～5月10日播种,苗出的好而齐,并能正常成熟。 2、播法。可采用人工刨埯把粪,也适应机械条播。 3、密度。合玉15号株型紧凑收敛,适于密植。调查统计,密度在亩保苗4000株以下,密度与产量呈正相关。密度以3000株/亩左右的产量为100,3339株/亩左右的产量比107.6,3666株/亩左右产量比为118.4,4000株/亩左右的产量比为108.5。反之,亩保
1, timely early broadcast. Stable soil temperature can be sown by 7 ℃. In recent years, sowing jade 15 sowing date proved that, generally in the April 25 ~ May 10 sowing, Miao out of a good and homogeneous, and can mature normally. 2, sowing. Manual planing can be used to manure, but also to adapt to mechanical drilling. 3, density. Co-Yu 15 compact compact type, suitable for close planting. Survey statistics, the density of seedlings in 4000 acres below the seedlings, density and yield were positively correlated. The yield at a density of about 3000 plants / mu is about 100,3339 plants / mu, and the yield ratio is about 107.6 with 3666 plants per mu. The yield ratio is about 118.4, and the yield ratio about 4000 plants per mu is 108.5. On the contrary, mu insurance