摘要
在不施农药与化肥 ,只施有机肥料的栽培条件下 ,研究不同类型水稻品种根系发育及生物产量变化。结果表明 :①无公害栽培条件下根系分布在不同层次土壤中 ,次生根数要比常规栽培平均多出 10 3条 ,根的长度比常规栽培条件下长 3cm。②不同栽培环境中根数与单株粒重、单株生物产量呈正相关。③无公害栽培条件下稻米品质有所变化 ,直链淀粉的含量要高于常规栽培 ,蛋白质含量有所增加 ,但变化不明显。④无公害栽培比常规栽培条件下平均增产 5
The Bio_mass and the development of root system of different rice varieties cultivated under the condition of applying pure organic fertilizer without herbicide and chemical fertilizer were studied.The result indicated:①The number of secondary roots increased 103 averagely at different soil layer under pollution free condition compared with conventional cultivating condition,but the root length was 3 cm shorted.②The root number showed positive correlation with grain weight per hill and Bio_mass.③The content of amylose under pollution free condition was higher than that under conventional cultivation condition,the content of protein have n't obvious change.④The average yield increased 5% under pollution free cultivation condition.
出处
《吉林农业科学》
CSCD
2002年第4期8-12,共5页
Journal of Jilin Agricultural Sciences
