CAO Li-wei,GUO Xiao-shuang,GONG Zhen-ping,et al.Changes of Phosphorus Nutrition on P Accumulation, Yield and Quality of Soybean[J].Soybean Science,2015,34(03):458-462,479.[doi:10.11861/j.issn.1000-9841.2015.03.0458]
磷素营养变化对大豆磷素积累及产量和品质的影响
- Title:
- Changes of Phosphorus Nutrition on P Accumulation, Yield and Quality of Soybean
- 文献标志码:
- A
- 摘要:
- 以黑农48大豆品种为供试材料,采用砂培法,通过大豆生育期间淋浇不同的磷素水平营养液,研究了磷素营养水平变化对大豆植株磷素积累量及产量和品质的影响。结果表明:全生育期低磷处理(P1)的大豆植株中磷素积累总量(391.5 mg?盆-1)明显低于高磷处理(P31)(988.2 mg?盆-1),其它处理无论是先高磷后低磷还是先低磷后高磷全株磷积累量都与高磷处理的时间成正比。R1~R5期是植株磷积累最敏感的时期;籽粒磷素积累量占全株磷素总量的比例,比其它器官所占比例都要高。高磷时间越长磷素分配到籽粒中的比例就越低,磷营养不足时植株会优先满足籽粒对磷的需求。R1期以前磷营养水平决定株高和节数。大豆粒数、百粒重、产量以及大豆籽粒中蛋白质和脂肪的含量会随着高磷时间的增加而增加。V3~R1期高磷对产量的提升作用最大,R1~R5期是低磷胁迫最为敏感的时期。大豆前期磷素营养充足对后期产量形成有后效,前期磷素营养不足,后期施充足的磷素对产量形成有一定的补偿作用。
- Abstract:
- Taking soybean cultivar Heinong 48 as material, the sand culture with different levels of phosphorus nutrient were used to study the effect of changes in phosphorus nutrition on P accumulation, yield and quality of soybean. The results showed that the total amount of phosphorus accumulation in soybean plants of P1(391.26 mg per pot) was significantly lower than the high phosphorus treatment (P31) (988.20 mg per pot) in the whole growth period, phosphorus accumulation of other treatment was proportional to the time of the high phosphorus treatment R1-R5 was the most sensitive period of plant phosphorus accumulation; The phosphorus accumulation of grain accounts for more percentage than other organs, and the longer time of high phosphorus the lower proportion to the distribution of phosphorus in seeds, when phosphorus undernourished, the plant would give priority to satisfy the demand for phosphorus in seeds.The phosphorus levels before period of R1 in the decision of the height and the number of sections.The seeds per plant,100-seed weight, yield and soybean protein and fat content were increased continually with the increase of high phosphorus time. The high phosphorus treatment in V3-R1 played the most important role in enhancing the yield, R1-R5 was the most sensitive period to phosphorus stress. The sufficient P nutrition in early stage influenced yield formation. The sufficient phosphorus in late stage could compensate to yield formation when early P nutrient deficiencies.
参考文献/References:
[1]Wissuwa M. How do plants achieve tolerance to phosphorus deficiency Small causes with big effects[J].Plant Physiology, 2003,133: 1947-1958
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备注/Memo
基金项目:国家“十二五”科技支撑计划项目(2014BAD11B01);黑龙江省科技重大项目(GA14B101)。