摘要
腐植酸液肥——科力素(KLS)对水稻生长发育影响较大。试验表明,水稻苗床施用KLS明显刺激秧苗生长,处理区根长、根数、地上地下百株鲜重及带蘖率都好于对照区。不同生育时期喷施KLS,水稻发育加快,自返青期开始到成熟期都有不同程度提前,一般早熟3～5d。产量增加幅度为4.7%～21.1%,平均增产11.3%,亩增效37.44～204.48元,平均为99.2元,产投比约为12∶1。
The effect of humic acid liquid fertilizer （KLS） on the growth of rice was studied in this paper. The results indicated that applying KLS could stimulate the rice growth obviously, and compared with control, the root length, root number, fresh matter weight per hundred plant （ground and underground）, as well as tiller rate in treatment applied with KLS were all improved. Spraying KLS in different growth stage, the rate of rice growth was increased, and the growth stage was ahead by 3-5 days generally. The rice yield was increased by 4.7%-21.1%, the economic benefit was raised by 37.44-204.48 Yuan per acre, and I/O ratio was approximately 12：1.
出处
《腐植酸》
2006年第3期31-34,共4页
Humic Acid
关键词
水稻
全生育期
腐植酸
液肥
rice
the whole growth stage
humic acid
liquid fertilizer
