Effect of selected bacteria from biogas sludge on the growth and nutrition of upland rice

Q4 Agricultural and Biological Sciences

Agronomia Colombiana Pub Date : 2021-09-01 DOI:10.15446/agron.colomb.v39n3.97583

N. E. Mustamu, Z. Nasution, Irvan Matseh, M. Sembiring

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Abstract

This study evaluated the influence of selected superior bacterial isolates (SBI), biogas sludge, and their interactions on growth and nutrient uptake of upland rice grown in Ultisols. We used a randomized block design with two factors and seven replicates from October 2020 to April 2021. The first factor used selected SBI (B0 = untreated, B1 = nitrogen-fixing bacteria isolate (N3), B2 = phosphate solubilizing bacteria isolate (P7), B3 = isolate combination (N3+P7)). The second factor was the dosage of biogas sludge (S0 = untreated, S1 = 157.5; S2 = 315; S3 = 630 ml/polybag). The parameters were determined by ANOVA and followed by Duncan’s multiple range test at Р<0.05. The results showed that the isolate P7 significantly increased the N uptake by 20.77% and crop growth rate (CGR) of upland rice 2.81 times. Biogas sludge doses from 315 to 630 ml/polybag significantly increased plant height, uptake of N and P, total fresh and dry weight, and CGR of upland rice. The interaction between N3 and biogas sludge dosage of 630 ml/polybag significantly increased the CGR of upland rice. The application of isolates N3 and P7 and their combination with biogas sludge of 630 ml/polybag has the potential to increase the CGR of upland rice in acidic soils.

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沼液污泥中选定细菌对旱稻生长和营养的影响

本研究评估了选择的优质细菌分离株(SBI)、沼气污泥及其相互作用对Ultisols旱稻生长和养分吸收的影响。从2020年10月至2021年4月，我们采用了双因素随机区组设计和7个重复。第一因子选用SBI (B0 =未经处理，B1 =固氮菌分离物(N3)， B2 =磷酸盐增溶菌分离物(P7)， B3 =分离物组合(N3+P7))。第二个影响因素是污泥投加量(S0 =未经处理，S1 = 157.5;S2 = 315;S3 = 630毫升/塑料袋)。参数采用方差分析确定，Duncan多元极差检验，Р<0.05。结果表明，分离株P7显著提高旱稻氮素吸收量20.77%，提高作物生长率2.81倍。315 ~ 630 ml/袋沼液处理显著提高了旱稻株高、氮磷吸收量、总鲜重和总干重以及CGR。沼液污泥投加量630 ml/塑料袋与N3的交互作用显著提高旱稻的CGR。在酸性土壤中施用分离物N3和P7及其与630 ml/塑料袋的沼液污泥的组合具有提高旱稻CGR的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Agronomia Colombiana Agricultural and Biological Sciences-Agronomy and Crop Science

CiteScore

1.00

自引率

0.00%

发文量

审稿时长

25 weeks

期刊介绍： Agronomia Colombiana journal it is intended to transfer research results in different areas of tropical agronomy. Original unpublished papers are therefore accepted in the following areas: physiology, crop nutrition and fertilization, genetics and plant breeding, entomology, phytopathology, integrated crop protection, agro ecology, weed science, environmental management, geomatics, biometry, soils, water and irrigation, agroclimatology and climate change, post-harvest and agricultural industrialization, food technology, rural and agricultural entrepreneurial development, agrarian economy, and agricultural marketing (Published: Quarterly).