大豆作物下微生物群落对土壤微生物数量和速效养分的影响

Q4 Agricultural and Biological Sciences

Journal of the Indian Society of Soil Science Pub Date : 2021-07-30 DOI:10.5958/0974-0228.2021.00029.3

B. Yaduwanshi, R. Sahu, N. Mitra, B. S. Dwivedi

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引用次数: 2

摘要

本调查是根据土壤科学和农业化学部研究农场正在进行的全印度土壤生物多样性和生物肥料网络项目，观察微生物群落对2018-19年期间种植的大豆的微生物种群、土壤中的有效营养素和产量的影响，印度中央邦。发现与荧光假单胞菌（PGPR）放线菌（Actino）和节杆菌（Arthro）联合接种有利于提高大豆产量。施用推荐剂量的肥料（RDF）和微生物群落（PGPR+Actino+Arthro）可获得显著更高的有效氮（N）、磷（P）和钾（K），分别比未接种肥料的对照高43%、30%和37%。类似地，在播种后25、45和65天，接受RDF+PGPR+放线菌+节杆菌的地块记录到放线菌、节杆菌和PGPR的种群显著增加，分别为1.71、1.42和1.52对数倍；1.32、1.28和1.31对数倍；分别是未接种对照的1.56、1.35和1.44对数倍。在几乎所有情况下，RDF+PGPR+Arthro、RDF+PGRPR+Actino和RDF+Arthro+Actino的治疗组合都表现出相似的性能。大豆种子和秸秆产量分别比未接种的对照增产44%和61%。可以得出结论，微生物群落的应用可以通过直接和间接的有益效果来提高大豆产量、土壤有效养分和微生物种群。

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Impact of microbial consortia on microbial population and available nutrients in soil under soybean crop

The present investigation was conducted to see the effect of microbial consortia on microbial population, available nutrients in soil and yield of soybean grown during 2018-19 under an ongoing All India Network Project on Soil Biodiversity and Biofertilizers at the Research Farm of Department of Soil Science and Agricultural Chemistry, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur, Madhya Pradesh, India. Coinoculation in the form of a consortium with Pseudomonas fluorescens (PGPR) Actinomycetes (Actino) and Arthrobacter (Arthro) was found beneficial in enhancing yield of soybean. Application of recommended dose of fertilizers (RDF) along with microbial consortium (PGPR+Actino+Arthro) recorded significantly higher amounts of available nitrogen (N), phosphorus (P) and potassium (K) which resulted in 43, 30 and 37 per cent, respectively over that of fertilized uninoculated control. Similarly, plots receiving RDF+PGPR+Actino+Arthro recorded significantly higher populations of Actinomycetes, Arthrobacter and PGPR at 25, 45 and 65 days after sowing which were 1.71, 1.42 and 1.52 log fold; 1.32, 1.28 and 1.31 log fold; and 1.56, 1.35 and 1.44 log fold, respectively over that of fertilized uninoculated control. In almost all cases, the treatment combinations of RDF+PGPR+Arthro, RDF+PGPR+Actino and RDF+Arthro+Actino exhibited similar performances. Seed and stover yields of soybean increased by 44 and 61 per cent, respectively over that of fertilized uninoculated control. It may be concluded that application of microbial consortia may be followed for enhancing soybean yield, available soil nutrients and microbial populations by direct as well as indirect beneficial effect.

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来源期刊

Journal of the Indian Society of Soil Science Agricultural and Biological Sciences-Soil Science

CiteScore

0.80

自引率

0.00%

发文量

期刊介绍： To cultivate and promote soil science and kindred branches of science. To disseminate the knowledge of soil science and its applications, through meetings, discussions, and publications. To promote judicious interactive use of soil, water and other natural resources, fertilizer and other inputs to maintain quality and resilience of soil for sustainable agriculture. To foster high standards in the teaching and education of soil science. To work in close association with learned societies and organizations having similar objectives. To create public awareness about the importance of soil as a finite natural resource. To carry out research and to perform all other acts, matters, and things that may assist in, or be conduce to, or be necessary for the fulfillment of objectives and purposes of the Society.