摘要
通过盆栽实验,对白菜施用豆粕类控释型有机无机复合肥的效果进行分析。与无机复合肥相比,白菜施用豆粕类控释型有机无机复合肥能极显著地提高干物质含量,能显著地降低硝酸盐含量,但不能提高生物产量。对豆粕类控释型有机无机复合肥不同施氮水平进行分析,1.6g/10kg的施用量在生物产量方面显著高于0.8g/10kg的施用量,但在干物质含量和硝酸盐含量方面,不同氮素水平间差异不显著。综合考虑三因素,以1.6g/10kg的施氮量为佳,即在不降低干物质含量和不增加硝酸盐含量的基础上,可显著提高产量,而2.0g/10kg的施氮量,不仅产量低,而且增加成本,不宜采用。
Through pot testing,the effect of applying soybeam meal type controlled-release organic and inorganic compound fertilizer on cabbage can be analyzed.Comparing with inorganic fertilizer,using soybeam meal type controlled-release organic and inorganic compound fertilizer on cabbage can significantly increase dry matter content and decrease nitrate content,but can not improve the biological production.After analyzing different amount of nitrogen in soybeam meal type controlled-release organic and inorganic compound fertilizer,it is found that nitrogen rate of 1.6 g/10 kg is higher than 0.8 g/10 kg in the aspect of crop output.However,in the content of dry matter and nitrate,different amount of nitrogen differs little.Taking the three elements into consideration,nitrogen rate of 1.6 g/10 kg is better,which can obviously increase biological production,without reducing the content of dry matter and nitrate.While,applying 2.0 g/10 kg nitrogen will not only decrease biological production,but also increase cost,thus it shall not be applied.
出处
《食品研究与开发》
CAS
北大核心
2011年第3期31-34,共4页
Food Research and Development
关键词
有机无机复合肥
白菜
因素
organic and inorganic fertilizer
cabbage
factors
