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1984年我们利用稻田育苗,进行不同留苗密度的试验,得出初步结果,以苗距2.5寸的较好。在此基础上,1985年改用旱地育苗,以观察不同苗距对烟苗素质的效应。试验处理苗距分1.5寸、2寸、2.5寸、3寸。苗床整理表土捶板,上铺营养土1寸,每处理小区面积1.25平方米。3月18日播种,苗床供水全部采用浇水,5片真叶前施化肥,5片真叶后追粪水两次,间苗2-3次(密度小的多间苗一次)。3片真叶后烟苗遭受大冰雹危害,以
In 1984 we used paddy field nursery, the density of seedlings to carry out different tests, the initial results obtained to seedling 2.5 inches better. On this basis, in 1985 switched to dry land nursery to observe the effects of different seedlings on the quality of tobacco seedlings. Experimental treatment of seedling points 1.5 inches, 2 inches, 2.5 inches, 3 inches. Surface finishing seedbed hammer board, nutrition 1-inch top soil, each treatment area of 1.25 square meters. March 18 sowing, seedbed water supply all use watering, 5 leaves before real fertilizer, 5 true leaves after chasing doused twice, 2-3 times between the seedlings (more dense seedlings once more). 3 really leaves smoke seedlings suffered heavy hail to