摘要
通过大田试验研究不同新型肥料对土壤肥力及烤烟生长的影响。结果表明:液态有机中微量肥能显著提高速效钾、速效磷含量、土壤碱解氮、烤烟叶面积指数与成熟期光合有效辐射,提高烤烟物理性状、土壤有机质含量与土壤pH,促进烤烟根系生长发育;液态生物肥能显著提高烤烟的叶面积指数与土壤碱解氮含量,显著降低土壤pH,促进烤烟根系生长;固态生物肥有利于土壤有机质含量提高,但烤烟根系要劣于常规施肥;上述新型肥料均可促进烤烟生长与成熟,提高烤烟成熟期光合有效辐射,提高烤烟旺长期与成熟期的叶面积指数。
Effects of different new type fertilizers on soil fertility and flue-cured tobacco growth were studiedby field experiments. The results showed that the contents of soil available potassium, available phosphorus,alkali-hydrolyzable nitrogen, leaf area index and photosynthetic active radiation in maturing stage of flue-cured tobacco were increased significantly with the application of liquid medium trace element fertilizer, whichpromoted flue-cured tobacco physical characters, soil organic matter content and soil pH value, and it wasfavorable to root growth of flue-cured tobacco. The contents of leaf area index and soil alkali-hydrolyzablenitrogen were increased significantly with the application of liquid bio-fertilizer, and soil pH value wasdecreased significantly, liquid bio-fertilizer was favorable to root growth of flue-cured tobacco. The content ofsoil organic matter was increased with the application of solid bio-fertilizer, while the growth of root system wasworse. The new type fertilizers could all promote the growth and maturity of flue-cured tobacco, improvephotosynthetic active radiation in maturing stage and leaf area index in vigorous growth stage and maturingstage.
出处
《中国农学通报》
2017年第29期85-89,共5页
Chinese Agricultural Science Bulletin
基金
湖南省烟草专卖局(公司)湘西州局(公司)科技项目"湘西州山地特色烤烟高效施肥技术研究与示范"(XX14-16Aa-02)
关键词
新型肥料
土壤肥力
烤烟生长
new type fertilizer
soil fertility
growth of flue-cured tobacco
