摘要
采用盆栽方法,研究高油大豆品种东农46在氧解腐殖酸与不同量磷素混施条件下的生育表现。结果表明,腐磷搭配,大豆黄叶末期各主要器官单位容积的含磷率和植株吸磷总量都比对照有所提高,其中以氧解腐殖酸搭配低磷素效果最为明显;氧解腐殖酸能降低土壤磷的真实固定量,提高磷肥的吸收利用效率;腐磷搭配能优化磷素在土壤中的分布,提高土壤空间有效磷的比率。
Pot culture was used to study the growth and development expression of high-oil soybean variety DN46 under mingling application of oxidized humatic acid （OHA） and different application rate of phosphorus （P） fertilizer. The results indicated that applying OHA with P fertilizer increased both P content per unit volume and total P-absorbing amount at soybean maturity stage. Effect of OHA with low- P fertilizer was proved to be obvious. OHA lowered the true P-fixation in soil and promot P utilization. Applying OHA together with P optimized P distribution in soil and increased the ratio of available P in soil.
出处
《中国油料作物学报》
CAS
CSCD
北大核心
2007年第2期179-183,共5页
Chinese Journal of Oil Crop Sciences
基金
黑龙江省农业委员会资助
黑龙江省沃土工程项目(050016)
关键词
氧解腐植酸
磷素
混施
大豆磷吸收
影响机制
Oxidized humatic acid
Phosphorus
Mingling application
Soybean P-absorbing Effective mechanism
