有机肥的不同配置对烤烟生长的影响

通过田间试验研究不同有机肥料(腐熟猪粪、菜籽饼和腐熟秸秆)前作和当季施用对烤烟生长的影响。结果表明:前作和当季施用有机肥对烤烟生长有促进作用。前作施用腐熟猪粪对促进烟株的生长,上部烟叶叶面积比较明显,但烟叶中上等烟叶比例和均价下降。施用秸秆在小春季养分矿化比油枯和腐熟猪粪慢,养分矿化率低,至当季土壤中的硝态氮含量较高,施用油枯则相反。前作施用油枯烟叶产值量比当季好,施用秸秆可以提高烟叶中上等烟比例和均价,但不能提高烟叶的产值量。当季化肥和腐熟猪粪合理混施可以提高烟叶的产值量。

Effect of Different Kinds of Organic Manure and Application Time on Growth of Flue-cured Tobacco

Effect of different kinds of organic manure including fully-fermented pig manure, oil cake and fully-fermented crop straw and different application time on growth of flue-cured tobacco was studied in field experiment. Results showed that all treatment promoted the growth of flue-cured tobacco, as compared with the control, just manuring chemical fertilizer. Leaf area of upper leaf were increased, if employed decomposed hog manure during proceeding crop, but rates of first and secondary class and equal price were decreased. And rates of first and secondary class and equal price were increased employed stalks left, no better production value. straw left employed during proceeding crop can lead to higher nitrate nitrogen content during flue-cured tobacco. The production value of tobacco leaf when oil marc was employed in proceeding crop was better that employed in flue-cured tobacco season. Chemical fertilizer and decomposed hog manure were mixed to employ in flue-cured tobacco season, which could enhance the production value of tobacco leaf.