皖南双季稻区烟稻轮作生态环境的配套技术研究

本文通过对K326、RGH51两个烤烟品种不同移栽期、不同施氮水平及配比试验研究,结果表明:皖南双季稻区烟稻轮作生态环境1]中等肥力田块,烤烟生产以3月25—4月8日期间移栽到大田,施化学纯氮97.5-105kg/hm2,N:P2O5:K2O=1:1-1.5:3等为宜,既可保证上部叶充分成熟采烤,获得优质适产,又能适时腾茬栽插晚稻,科学地解决烟稻争茬矛盾,能充分地利用皖南烟区温光资源,获得烟稻轮作双丰收。

Study on Suitable Technologies of Tobacco-rice alternate culture and its effectiviy

This paper research on varied transplant-date and nitrogen quantity of K326,RGH51showed: Concerning the medium fertilizer soil,which in the ecological environment of Rice-rice rotation's area of south Anhui,The period time from 25th,March to 8th,April is the suitable transplant-date of the flue-cured;the suitable nitrogen is 6.5-7.0kg/hm~2,the rate of N:K_2O:P_2O_5 is 1:1-1.5:3.Based on these technologies,It would be insured that the economic maturity of upper-leaf,high qualities and suitable yield of flue-cured,also,the rice could be planted timely after tobacco,The resource of illumination and temperature will be fully used,then we will gain enough benefit both from the flue-cured and rice.