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首页> 外文期刊>Journal of Agricultural Science >Productivity and Soil Health of Potato (Solanum tuberosum L.) Field as Influenced by Organic Manures, Inorganic Fertilizers and Biofertilizers under High Altitudes of Eastern Himalayas
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Productivity and Soil Health of Potato (Solanum tuberosum L.) Field as Influenced by Organic Manures, Inorganic Fertilizers and Biofertilizers under High Altitudes of Eastern Himalayas

机译：喜马拉雅山东部高海拔地区有机肥，无机肥和生物肥对马铃薯（Solanum tuberosum L.）田生产力和土壤健康的影响

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Field experiments were conducted in three consecutive summer seasons of 2005 to 2007 to study the effect of integrated nutrient management on soil health and productivity of potato ( Solanum tuberosum L.) under rainfed condition. The experiment was laid out in a split plot design with eight nutrient management practices (combinations of organic manures viz, farm yard manure (FYM), poultry manure (PM), vermicompost (VC) and inorganic fertilizers in main plots and seed tuber treatment with three biofertilizers ( Azotobactor , phosphorus solubilizing bacteria (PSB) and Azotobactor + PSB) in sub plots. The results showed that 50 % of the recommended dose of NPK through inorganic + 50% recommended dose of nitrogen (RDN) through organic manures (FYM, PM or VC) or 100% recommended dose of NPK through inorganic fertilizers alone favorably influenced the tuber yield, nutrient uptake, soil fertility and paid higher returns compared to other treatments. Seed treatment with Azotobactor + PSB proved better in tuber yield, nutrient uptake and recorded higher returns as compared to sole treatment of either Azotobactor or PSB. Three years pooled result revealed that integrated application of 50 % of recommended NPK through inorganic and 50 % RDN through PM recorded significantly highest tuber yield (22.73 t/ha) closely followed by 100 % recommended NPK through inorganic (22.20 t/ha) which were 228 % and 223 % respectively, higher than control. Integrated application of inorganic and organic fertilizers and seed treatment with Azotobactor + PSB biofertilizers improved tuber yield, nutrient uptake, and gave higher return as compared to other treatment combinations. Total organic carbon (TOC), soil microbial biomass carbon (SMBC), available N, P, and K status of the soil after 3 years were maximum when 50 % recommended dose of NPK were applied through inorganic and remaining 50 % RDN through PM.
机译：2005年至2007年连续三个夏季进行了田间试验，研究了养分综合管理对雨养条件下马铃薯（Solanum tuberosum L.）土壤健康和生产力的影响。该实验采用八种养分管理方法（有机肥，农场粪便（FYM），家禽粪便（PM），ver堆肥（VC）和无机肥料（在主要地块中进行有机肥和种子块茎处理）的八种养分管理实践进行布局设计。在子图中，使用了三种生物肥料（固氮细菌，磷增溶细菌（PSB）和固氮细菌+ PSB），结果表明，无机肥料氮磷钾的推荐剂量为50％，有机肥料氮磷的推荐剂量为50％， PM或VC）或仅通过无机肥料推荐的100％NPK推荐剂量对块茎产量，养分吸收，土壤肥力产生了有利的影响，并且与其他处理相比，收益更高。与单独使用Azotobactor或PSB相比，其记录的收益更高。三年的合并结果显示，通过ino整合施用建议NPK的50％通过PM施用的有机肥和50％RDN记录的块茎产量最高（22.73吨/公顷），紧随其后的是通过无机肥（22.20吨/公顷）的100％推荐氮磷钾肥，分别为228％和223％，高于对照。与其他处理组合相比，无机和有机肥料的综合应用以及Azotobactor + PSB生物肥料的种子处理提高了块茎产量，养分吸收并提供了更高的回报。当通过无机施用NPK的建议剂量为50％，而通过PM施用其余50％的RDN时，三年后土壤的总有机碳（TOC），土壤微生物生物量碳（SMBC），土壤中的有效氮，磷和钾状态最高。

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