Temporal availability of phosphorus and sulphur in acid Inceptisol as influenced by graded application of P and S under black gram (Vigna mungo L. Hepper) production

IF 0.8 4区生物学 Q3 AGRONOMY

Legume Research Pub Date : 2019-08-08 DOI:10.18805/LR-4127

B. Tamang, S. Swami

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引用次数: 3

Abstract

A pot culture experiment was conducted at School of Natural Resource Management, College of Post Graduate Studies in Agricultural Sciences, CAU, Umiam, Meghalaya to assess the temporal availability of phosphorus and sulphur in acid Inceptisol of Meghalaya as influenced by graded application of P and S under black gram (cv. SBC-47) production. The treatment consisted of four levels of P (20, 40, 60 and 80 mg P kg-1 soil) and four levels of S (10, 20, 30 and 40 mg S kg-1 soil). The experiment was laid out in factorial completely randomized design with three replications during kharif season of 2016. The experimental soil was deficient in available phosphorus (13.85 kg ha-1) and available sulphur (15.91 kg ha-1). The results revealed that combined application of P and S had significant effects on seed and stover yield of black gram. The optimum seed and stover yield were recorded with combined application of 60 mg kg-1 soil and 30 mg kg-1 soil, respectively which was statistically at par with combined application of 80 mg P kg-1 soil and 40 mg S kg-1 soil. The assessment of temporal availability of phosphorus and sulphur at 20, 40 DAS and after harvesting of black gram in acid Inceptisol of Meghalaya indicated that available phosphorus in soil increased with each successive increasing level of P application, however it showed decreasing trend with time intervals of 40 DAS and after harvesting of black gram at each successive dose of 40, 60 and 80 mg P kg-1 soil over 20 mg P kg-1 soil in the presence of S fertilization. Similarly, available sulphur in soil also increased with each successive increasing level of S application, whereas it also showed decreasing trend with time intervals of 40 DAS and after harvesting of black gram at each successive dose of 20, 30 and 40 mg S kg-1 soil over control as 10 mg S kg-1 soil in the presence of P fertilization.

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黑克(Vigna mungo L. Hepper)生产条件下磷、硫分级施用对酸性初始化土壤磷、硫时间有效性的影响

在梅加拉亚邦农业大学农业科学研究生院自然资源管理学院进行盆栽试验，评估黑克(cv)下磷和S分级施用对梅加拉亚邦酸性土壤中磷和硫的时间有效性的影响。SBC-47)生产。处理包括4个磷水平(20、40、60和80 mg P kg-1土壤)和4个S水平(10、20、30和40 mg S kg-1土壤)。试验采用因子完全随机设计，3个重复，于2016年秋收季节进行。试验土壤缺乏有效磷(13.85 kg ha-1)和有效硫(15.91 kg ha-1)。结果表明，磷、硫配施对黑克兰种子和秸秆产量均有显著影响。60 mg kg-1土壤和30 mg kg-1土壤配施的种子和秸秆产量最佳，与80 mg P kg-1土壤和40 mg S kg-1土壤配施的产量在统计学上相当。时间可用性的评估磷和硫在20、40 DAS和收获后的黑克酸始成土的土壤有效磷梅加拉亚邦表示,增加每个连续的P的含量增加应用程序,但是它显示下降趋势的时间间隔40 DAS和收获后在每个连续黑克剂量的40岁,60和80毫克P公斤土壤P超过20毫克公斤土壤的施肥。土壤有效硫也随施磷水平的逐次增加而增加，而在20、30和40 mg S kg-1土壤中，土壤有效硫也随时间间隔为40 DAS和黑克收获后呈下降趋势，在施磷条件下，土壤有效硫与10 mg S kg-1土壤相比呈下降趋势。

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来源期刊

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.