摘要
本文通过供试作物新华油菜研究了氮钾铁的不同配比对油菜产量、活性铁含量、硝酸盐的累积、维生素C含量的影响。结果表明:施用氮肥能极大地提高油菜产量,钾、铁肥增产效果不显著;铁肥是影响油菜体内活性铁含量的主因子,适量铁肥能够显著提高活性铁含量;氮钾铁肥均能提高油菜体内维生素C的含量;油菜体内硝酸盐的累积与氮肥施入量呈正相关,施用铁、钾可在一定程度上降低油菜硝酸盐累积量。经数学模拟和综合选优,本试验条件下油菜的最优施肥方案为柠檬酸铁:118.18~144.17kg/hm2,尿素:629.37~731.98kg/hm2,硫酸钾:585.23~673.65kg/hm2。
A xinhuayoueai pot experiment was conducted to study the effects of the prescription of N, K, Fe on yield, active Fe content, vitamin C content and accumulation of nitrate of rape. Results showed that N, K,Fe fertilizer could increase rape yield, but the effects of K, Fe fertilizer was not so obvious as N fertilizer. Fe fertilizer could increase active Fe content. N, K,Fe can all improve the content of vitamin C in the body of the rape to a certain extent ,but cant use them excessively. The nitrate accumulates and constructs the entering amount presents positive correlation, Using K, Fe can reduce the accumulating amount of rape nitrate to a certain extent. And select synthetically by mathematics simulation,the optimum application rates was Critic acid -Fe: 118.18- 144.17kg/hm^2, CO( NH2 )2:629.37 731.98 kg/hm^2, K2SO4:585.23 - 673.65 kg/hm^2.
出处
《山东农业大学学报(自然科学版)》
CSCD
北大核心
2005年第2期181-185,共5页
Journal of Shandong Agricultural University:Natural Science Edition
基金
山东省科技攻关项目(011010101)
山东省教育厅自然科学研究基金(J03102)资助内容
关键词
油菜
产量
硝酸盐
活性铁
维生素C
rape, yield, nitrate content, active Fe, vitamin C