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在黑龙江省北部黑土和东部白浆土大豆主产区设置大豆磷肥用量试验,以明确该地区大豆施磷效果和适宜的磷肥用量。结果表明:黑龙江省大豆磷肥适宜用量为P2O590 kg.hm-2,平均增产775 kg.hm-2,平均增产率为36.2%,平均增收2 260元.hm-2。在施磷量为(P2O5)45、90、1351、80 kg.hm-2条件下,磷肥利用率分别为19.33%、18.85%、13.46%和9.58%;磷肥农学效率分别为8.90、8.61、5.72和3.57 kg.kg-1,适量施用磷肥是大豆高产高效的重要措施。
In northern Heilongjiang Province, the black soil and eastern white alluvial soybean soybean production experiment to set the soybean in order to clarify the region of phosphorus and appropriate application of phosphate fertilizer. The results showed that suitable dosage of soybean phosphate fertilizer in Heilongjiang Province was P2O590 kg.hm-2, average yield was 775 kg.hm-2, average yield was 36.2%, average income was 2 260 yuan.hm-2. Under phosphorus (P2O5) 45,90,1351,80 kg.hm-2, the phosphorus utilization rates were 19.33%, 18.85%, 13.46% and 9.58% respectively. The agronomic efficiency of phosphate fertilizer was 8.90,8.61 and 5.72 And 3.57 kg.kg-1, the appropriate amount of phosphate fertilizer is an important measure of high yield and high efficiency of soybean.