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首页> 外文期刊>The Indian Journal of Agricultural Sciences >Soil organic carbon, carbon sequestration, soil microbial biomass carbon and nitrogen, and soil enzymatic activity as influenced by conservation agriculture in pigeonpea (Cajanus cajan) plus soybean (Glycine max) intercropping system
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Soil organic carbon, carbon sequestration, soil microbial biomass carbon and nitrogen, and soil enzymatic activity as influenced by conservation agriculture in pigeonpea (Cajanus cajan) plus soybean (Glycine max) intercropping system

机译：土壤有机碳，碳螯合，土壤微生物碳和氮，以及鸽子保护农业保护农业的土壤酶活性（CAJANUS CAJAN）加大豆（甘氨酸最大）间作系统

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摘要

Field experiment was conducted during the year 2014-15 and 2015-16 at MARS, Dharwad, Karnataka to study the influence of conservation agriculture (CA) practices on soil health in a pigeonpea [Cajanus cajan (L.) Millsp] + soybean [Glycine max (L.) Merr] intercropping system. The experiment consisted of 6 tillage systems [CT1:No tillage with broad bed and furrow (BBF) and crop residue retained on the surface, CT2:Reduced tillage with BBF and incorporation of crop residue, CT3:No tillage with flatbed and crop residue retained on the surface, CT4:Reduced tillage with flatbed and incorporation of crop residue, CT5:Conventional tillage with incorporation of crop residue and CT6:Conventional tillage without crop residue. The experiment was laid out in strip block design and replicated thrice. The CA treatments significantly improved soil health. The pooled data revealed that, all the CA systems i.e. CT1, CT2, CT3 and CT4 recorded significantly higher soil organic carbon at 0-15 cm depth (0.62, 0.64, 0.60 a d 0.62%, respectively) and 15-30 cm depth (0.56, 0.56, 0.54 and 0.55%, respectively), higher soil carbon sequestration (15.1, 15.4, 14.6 and 14.7 tonnes/ha, respectively) over conventional till systems. However, soil microbial biomass carbon and nitrogen were significantly higher in all the CA systems. While, significantly higher soil urease activity (11.76, 11.86, 11.10 and 11.44 mu g NH4-N/g/day), dehydrogenase activity (32.29, 32.29, 31.14 and 31.55 mu g TPF/g/day) and total phosphatase activity (173.21, 174.55, 170.09 and 173.21 mu g PNP/g/hr) were recorded in CT1, CT2, CT3 and CT4 over CT5 and CT6.
机译：在Mars，Dharwad，Karnataka的2014-15和2015-16年进行现场实验，研究了保护农业（CA）实践对Pigeonpea的土壤健康的影响[Cajanus Cajan（L.）Millsp] +大豆[甘氨酸MAX（L.）MERR]间作系统。该实验由6个耕作系统组成[CT1：没有繁殖的耕作和沟槽（BBF）和粪便残留物，CT2：用BBF减少耕作，并掺入作物残留物，CT3：保留了平板和农作物残留物的耕作在表面上，CT4：用平板耕种和掺入作物残留物，CT5：常规耕作，掺入作物残留物和CT6：常规耕作没有作物残留物。实验在条带块设计中布置并复制三次。 CA治疗显着改善土壤健康状况。汇总数据显示，所有CA系统IE CT1，CT2，CT3和CT4在0-15cm深度（0.62,0.64,0.60 ad 0.62％）和15-30cm深度（0.56分别为0.56,0.54和0.55％，分别更高的土壤碳螯合（分别为常规系统的土壤碳封存（分别为15.1,15.4,14.6和14.7吨/ ha）。然而，所有CA系统中，土壤微生物碳和氮显着高得多。虽然过高的土壤尿素活性（11.76,11.86,11.10和11.44μgNH4-n / g /天），脱氢酶活性（32.29,32.29,31.14和31.55μgtpf /天）和总磷酸酶活性（173.21 ，174.55,170.09和173.21μgpnp / g / hr）在CT5和CT6上CT1，CT2，CT3和CT4记录。

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