摘要
通过多点多年田间试验,对黑龙江省化肥现状作了比较全面的分析,结果表明,黑龙江省目前农田使用化肥氮磷比例为1∶1;全省平均施肥量145.53kg/hm^2,平均化肥增产6.6kg/kg粮豆;要实现本世纪末黑龙江省粮食总产量达3250万t目标,需化肥131.65万t,施肥量197.5kg/hm^2;实现下世纪2010年粮食总产达5000万t目标,需化肥184.65万t,施肥量277kg/hm^2;化肥氮磷钾比例应是2.1∶1∶0.4。
Based on the multiple sides and years field experiments,fairly complete analysis on the present situation of fertilizer application have been made in Heilongjiang province. The result showed that the present ratio of nitrogen and phosphorous fertilizers application to the farm land is 1:1;The average rate of fertilizer application is 145. 53 kg/hm2on the whole province,the average increase of grain and bean is 6. 6 kg/hm2 with per kilogram of nutrient element;To achieve the goal of 32. 5 million tones of ultimate grain production in the province,the amount of fertilizer requirement will be 1. 32 million tones of nutrient element, the optimum rate of fertilizer application should be 197. 5 kg/hn2;To achieve the goal of 50 million tones of ultimate grain production,the requirement of fertilizer will be 1. 85 million tones of nutrient element,the optimum rate of fertilizer application should be 277 kg/hm2;The optimum ratio of N:P:K should be 2. 1:1: 0. 4.
出处
《农业系统科学与综合研究》
CSCD
北大核心
1998年第2期89-92,共4页
System Sciemces and Comprehensive Studies In Agriculture
基金
黑龙江省科委八五重点攻关项目
关键词
化肥
利用现状
产量目标
需肥预测
Chemical fertilizer, Status of present utilization, Goal of grain production, Prediction of fertilizer requirement
