EFFECTS OF A MULTISTRAIN BIOFERTILIZER AND PHOSPHORUS RATES ON NUTRITION AND GRAIN YIELD OF PADDY RICE ON A SANDY SOIL IN SOUTHERN VIETNAM

被引：5

作者：

Phan Thi Cong ^{[2
]}

Tran Dang Dung ^{[2
]}

Nguyen Thanh Hien ^{[3
]}

Choudhury, Abu ^{[1
]}

Rose, Michael T. ^{[1
]}

Kecskes, Mihaly L. ^{[1
]}

Deaker, Rosalind ^{[1
]}

Kennedy, Ivan R. ^{[1
]}

机构：

[1] Univ Sydney, Fac Agr Food & Nat Resources, Sydney, NSW 2006, Australia

[2] Inst Agr Sci So Vietnam, Ho Chi Minh City, Vietnam

[3] Biofertilizer Action Res Ctr, Hanoi, Vietnam

来源：

JOURNAL OF PLANT NUTRITION | 2011年 / 34卷 / 07期

基金：

澳大利亚研究理事会;

关键词：

rice; plant-growth promotion; fused magnesium phosphate; Pseudomonas; Bacillus; rhizosphere; PLANT-GROWTH PROMOTION; SOLUBILIZING MICROORGANISMS; IRRIGATED RICE; PHOSPHATE ROCK; SYSTEMS; WHEAT; INOCULATION; POTENTIALS; MANAGEMENT; STRAIN;

D O I：

10.1080/01904167.2011.555587

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Field experiments during two successive rainy seasons were conducted in southern Vietnam to evaluate the effects of a commercial inoculant biofertilizer ('BioGro') and fused magnesium phosphate (FMP) fertilizer on yield and nitrogen (N) and phosphorus (P) nutrition of rice. Inoculation with BioGro containing a pseudomonad, two bacilli and a soil yeast significantly increased grain yield in the second season and straw yield in both seasons by 3-5%. The FMP fertilizer significantly increased grain yield from 1.72-2.33 t ha-1 to 2.99-3.58 t ha-1 along with total N and P accumulation at all rates in both cropping seasons. In the first season the difference in grain yield between BioGro treated and untreated plots was marginal but in the second season BioGro out-yielded the control at all the rates of added P. Overall, BioGro application did not compensate for low P fertilizer application to the same extent previously demonstrated for low N fertilizer applications.

引用

页码：1058 / 1069

页数：12

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