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
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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喜马拉雅东部高海拔地区有机肥、无机肥和生物肥料对马铃薯田生产力和土壤健康的影响
DOI：
10.5539/jas.v4n5p223
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
D. P. Patel
中科院分区：
文献类型：
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作者：
Manoj Kumar;L. K. Baishaya;D. Ghosh;Vijayta Gupta;S. K. Dubey;A. Das;D. P. Patel
2005年至2007年连续三个夏季进行了田间试验，以研究在雨养条件下养分综合管理对马铃薯（Solanum tuberosum L.）土壤健康和生产力的影响。试验采用裂区设计，主区有八种养分管理措施（有机肥料组合，即农家肥（FYM）、家禽粪便（PM）、蚯蚓粪（VC）以及无机肥料），副区是用三种生物肥料（固氮菌、解磷细菌（PSB）以及固氮菌 + 解磷细菌）对种薯进行处理。结果表明，通过无机肥料施入推荐氮磷钾用量的50% + 通过有机肥料（农家肥、家禽粪便或蚯蚓粪）施入推荐氮用量的50%，或者单独通过无机肥料施入100%推荐氮磷钾用量，与其他处理相比，对块茎产量、养分吸收、土壤肥力有良好影响，并能获得更高的收益。与单独使用固氮菌或解磷细菌处理相比，使用固氮菌 + 解磷细菌对种薯进行处理在块茎产量、养分吸收方面效果更好，且收益更高。三年的综合结果显示，通过无机肥料施入50%推荐氮磷钾用量以及通过家禽粪便施入50%推荐氮用量的综合应用，块茎产量显著最高（22.73吨/公顷），紧随其后的是通过无机肥料施入100%推荐氮磷钾用量（22.20吨/公顷），分别比对照高228%和223%。与其他处理组合相比，无机肥料和有机肥料的综合应用以及使用固氮菌 + 解磷细菌生物肥料对种薯进行处理提高了块茎产量、养分吸收，并带来了更高的收益。三年后，当通过无机肥料施入50%推荐氮磷钾用量以及通过家禽粪便施入剩余50%推荐氮用量时，土壤的总有机碳（TOC）、土壤微生物生物量碳（SMBC）、速效氮、磷和钾含量最高。
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.