摘要
在贵州中海拔地区。采用平衡施肥技术，水稻增产显著，且品质改善。试验结果表明：水稻平衡施肥产量为10．09t／hm^2。较习惯施肥增产33．11％；施钾肥可增产水稻0．88～2．18t／hm^2，增幅为11．13％～22．45％，产投比可达2．4～4．2。在中海拔地区，水稻施氮264kg／hm^2,磷（P2O5）243kg／hm^2．钾（K2O）225kg／hm^2为宜。
Abstract. The yield and quality of rice can be improved by the balance fertilization method in middle elevation area of southwest Guizhou. The results indicate that the rice yield with balance fertilization is up to 10.09t/hm^2 , 2.51t/hm^2 higher than that of common applying. Applying potash fertilizer can increase 0.88-2. 18t/hm^2 , 11.13%-22.45% of rice yield and rice quality can also be improved. The ratio of input/output of applying potash fertilizer is about 2.4-4. 2. The amounts of N, P2O5 and K2O applied for rice should be 264kg/hm^2, 243kg/hm^2 and 225kg/hm^2 respectively.
出处
《贵州农业科学》
CAS
2006年第1期50-52,共3页
Guizhou Agricultural Sciences
基金
加拿大国际发展署
加拿大钾磷研究所资助的<贫困地区养分管理研究>内容之一
关键词
中海拔地区
水稻
产量
平衡施肥
middle elevation area
rice
yield
balance fertilization
