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首页> 外文期刊>International Journal of Tropical Agriculture >Effect of Integrated Use of Municipal Compost, Sewage Sludge, Farm Yard Manure with Chemical Fertilizers on soil Enzymatic Activity and Yield of Rice-Groundnut Cropping System
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Effect of Integrated Use of Municipal Compost, Sewage Sludge, Farm Yard Manure with Chemical Fertilizers on soil Enzymatic Activity and Yield of Rice-Groundnut Cropping System

机译：市政堆肥，污水污泥，化肥与化肥的综合利用对稻花生系统土壤酶活性和产量的影响

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摘要

The objective of this study was to determine integrated effect of municipal compost, sewage sludge, farmyard manure with chemical fertilizers on soil enzymatic activity and yield of rice-groundnut cropping system". Activity of various soil enzymes viz., urease, dehydrogenase, acid and alkaline phosphatases were highest in the treatments that received Sewage sludge @20t ha~(-1) in combination with full dose of recommended fertilizers to rice. The mean values being 6.020 mg of NH_4~+-N releasedh~(-1) g~(-1) soil, 0.630 mg ofTPF released d~(-1) g~(-1) soil, 89.80 and 98.70 mg ofPNP released ha~(-1) g~(-1) soil, respectively under field conditions. During rabi season, the maximum activities of enzymes viz., urease (5.930 mg of NH_4~+-N released g~(-1) h~(-1)) dehydrogenase (0.450 mg of TPF produced g~(-1) h~(-1)), acid phosphatase and alkaline phosphatase (86.80 and 93.70 mg ofPNP released gA soil h~(-1)) were observed in soil treated with Seiuage sludge @ 201 ha~(-1) in combination with 100 per cent RDF applied treatment. Rice crop performance was significantly improved by the application of sewage sludge, urban compost, FYM along with different levels of recommended dose of fertilizers as compared to control, grain yield recorded in 100 per cent RDF(120:60:40 N:P_2O_5:K,0 kg ha~(-1)) treatment over control (0 percent RDF) was 70 per cent under field conditions. Groundnut crop grown during rabi after harvest of rice crop responded favorably to the residual effects of various treatments applied to rice crop along with the RDF given to groundnut crop. Kernel yield increased by 31 per cent over control under field conditions in the treatments that received entire dose of RDF and sewagesludge @ 20tha~(-1) to the previous rice crop. The increase in yields of groundnut due to cumulative effects of fertilizers and residual effects of organic manures along with enhanced microbial and enzymatic activity and also atmospheric N fixed by bacteria (Rhizobia) could be contributed to enhance the N availabilityto groundnut crop.
机译：这项研究的目的是确定城市堆肥，污水污泥，化学肥料对水稻-花生种植系统土壤酶活性和产量的综合影响。“各种土壤酶的活性，即脲酶，脱氢酶，酸和污水污泥@ 20t ha〜（-1）结合全量推荐肥料施用到水稻中的处理中碱性磷酸酶最高，平均值为6.020 mg NH_4〜+ -N释放h〜（-1）g〜 （-1）土壤，在田间条件下，d _（-1）g〜（-1）土壤释放了0.630 mg的TPF，ha〜（-1）g〜（-1）土壤释放了89.80和98.70 mg的PNP。狂犬病季节，酶的最大活性即尿素酶（5.930 mg NH_4〜+ -N释放g〜（-1）h〜（-1））脱氢酶（0.450 mg TPF产生g〜（-1）h〜 （-1）），在201 ha〜（-1）的Seiuage污泥与1的组合下处理的土壤中观察到酸性磷酸酶和碱性磷酸酶（分别在h〜（-1）gA土壤中释放的PNP为86.80和93.70 mg） RDF应用了00％的处理。与对照相比，通过施用污水污泥，城市堆肥，FYM以及不同水平的推荐肥料剂量，水稻作物的性能得到了显着改善，在100％RDF中记录了谷物产量（120：60：40 N：P_2O_5：K在田间条件下，相对于对照（0％RDF）处理的，0 kg ha〜（-1））为70％。水稻作物收成后在狂犬病期间生长的花生作物与对花生作物的RDF一起施用于水稻作物的各种处理的残留效应均得到了良好的响应。在田间条件下，在前一季稻田中接受全剂量RDF和污泥@ 20tha〜（-1）的处理中，内核产量比对照提高了31％。由于肥料的累积效应和有机肥料的残留效应以及增强的微生物和酶活性以及细菌固定的大气氮（根瘤菌），花生产量的增加可能有助于提高花生作物的氮素利用率。

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