摘要
试验以不同厂家生产的复合肥为试材,进行了与常规施肥为对照的试验。结果表明:12-18-15(K1SO4)处理,无论是大豆的生育性状,还是大豆的产量和经济效益,都明显地高于常规施肥和其它复合肥处理。以氮、磷肥投入为主的常规施肥,对提高大豆产量具有一定的局限性,减氮、稳磷、增钾可以明显地提高大豆的产量。硫酸钾复合肥12-18-15(K2SO4)与氯化钾复合肥15-15-15(KCl)相比,在总养分含量相等而钾素相同的条件下,含硫钾肥比含氯钾肥具有极明显的增产作用,增施硫肥可以大幅度地提高大豆的产量和经济效益。
Compared with routine fertilizer dressing, the compoud fertilizers from different factories were tested. The result showed that 12-18-15 (K2SO4) treatment was significantly higher than CK and other compound fertilizers in the characteristic of growth and devetopment, yield and econome benefit. The CK mainly based on N and PzO5 input had certain limit to soybean yield. However, reducing N holding P2O5 and increasing K could improve the yield of soybean. On the condition of equal nutrient content and the same kalium compared with 15-15 -15(KCl) treatment 12-18-15(K2SO4) treatment could increase yield obviously. Increasing sulphureous ferilizer could improve the yield of soybean and economic benefit.
出处
《黑龙江农业科学》
2002年第6期16-18,共3页
Heilongjiang Agricultural Sciences
关键词
复合肥
大豆
生育性状
产量
经济效益
compound ferlilizer
soybean
growth and derelopment properties
yield
econnomic benefit.
