摘要
本文通过3年的田间试验,研究了向日葵施钾肥的增产效果。结果表明,在长岭县石灰性土壤条件下施用钾肥增产效果明显。施钾量(K2O)以 150kg/hm2为宜,N∶P2O5∶K2O应为1∶0.5∶1。
Effect of potassium ferlilizer on the grain yield of sunflower were studied for 3 years. Results showed that application of potassium fertilizer can significantly increase grain yield under the calcarious soil conditions of Changling county. The best rate of potassium (K2O) was 150 kg/hm2, the proportion of N: P2O5 :K2O was 1: 0. 5 : 1
出处
《吉林农业大学学报》
CAS
CSCD
1994年第A12期113-116,共4页
Journal of Jilin Agricultural University
关键词
向日葵
钾肥
产量
Sunflower
potassium fertilizer
grain yield
