Effect of P solubilizing bacteria and P fertilizer on inorganic P fractions of acid soil and its influence on P uptake in groundnut (Arachis hypogaea L)

IF 0.8 4区 生物学 Q3 AGRONOMY Legume Research Pub Date : 2018-08-25 DOI:10.18805/LR-3991
M. Pradhan, Shilpee Dhali, R. Sahoo, C. Pradhan, S. Mohanty
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引用次数: 2

Abstract

The present study described the influence of Bacillus amyloliquefaciens CTC12 (KT633845) and Burkholderia cepacia KHD08 (KT717633) in combination with inorganic P fertilizer (SSP) on the inorganic P fractions (Ca-P and non occluded Al-P and Fe-P) in an acid agricultural soil. Though not significant but the highest available phosphorus was found with the combined application of 75 per cent P as SSP and inoculum KHD08 at 75 days after sowing (DAS) and harvest. Non-occluded Al-P and Fe-P accounted for maximum inorganic P fraction. Plots receiving 100 per cent single super phosphate (SSP) either sole or in combination with PSB recorded maximum non occluded Al-P and Fe-P and Ca-P. Sole application of Bacillus amyloliquefaciens CTC12 or Burkholderia cepacia KHD08 reduced the concentration of non occluded Al-P and Fe-P as well as Ca-P. The application of P solubilizing bacteria least influenced soil pH and organic carbon. However, combined application of P solubilizing bacteria and single super phosphate positively influenced pod yield and kernel P uptake. The beneficial effect of these rhizo-bacteria can be effectively used as bioinoculants combined with lower doses of inorganic P fertilizer in problematic acid agricultural soils in order to enhance crop productivity and soil available P.
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增磷菌和磷肥对酸性土壤无机磷组分的影响及其对花生磷素吸收的影响
本文研究了解淀粉芽孢杆菌CTC12 (KT633845)和洋葱伯克霍尔德菌KHD08 (KT717633)与无机磷肥料(SSP)配施对酸性农业土壤中无机磷组分(Ca-P、非封冻Al-P和Fe-P)的影响。在播种和收获后75 d, 75%磷配施SSP和接种KHD08,速效磷最高。未遮挡的Al-P和Fe-P占无机P的最大比例。接受100%单一超磷酸盐(SSP)单独或与PSB联合的地块记录了最大的非闭塞Al-P、Fe-P和Ca-P。单独施用解淀粉芽孢杆菌CTC12或洋葱伯克氏菌KHD08可降低未封闭的Al-P和Fe-P以及Ca-P的浓度。增磷菌对土壤pH和有机碳的影响最小。增磷菌与单一超磷配施对豆荚产量和籽粒磷吸收有显著的正向影响。这些根瘤菌的有益作用可以作为生物接种剂,与低剂量无机磷肥配合施用,有效地提高问题酸性农业土壤的作物生产力和土壤速效磷。
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来源期刊
Legume Research
Legume Research AGRONOMY-
CiteScore
1.30
自引率
37.50%
发文量
256
审稿时长
6-12 weeks
期刊介绍: Legume Research An International Journal. The Journal is an official publication of Agricultural Research Communication Centre. It is designed to bring out the original research articles on genetics, breeding, physiology, bacterial avtivity, production, quality, biochemistry and seeds of legumes crops. The objective of the journal is to serve as a forum for scientific community to publish their research findings on legumes ans to provide basis for new research. Journal is being scanned in the important indexing and abstracting services.
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