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首页> 外文期刊>Journal of Plant Nutrition >EFFICIENCY OF RHIZOBIUM INOCULATION AND P FERTILIZATION IN ENHANCING NODULATION, SEED YIELD, AND PHOSPHORUS USE EFFICIENCY BY FIELD GROWN SOYBEAN UNDER HILLY REGION OF RAWALAKOT AZAD JAMMU AND KASHMIR, PAKISTAN
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EFFICIENCY OF RHIZOBIUM INOCULATION AND P FERTILIZATION IN ENHANCING NODULATION, SEED YIELD, AND PHOSPHORUS USE EFFICIENCY BY FIELD GROWN SOYBEAN UNDER HILLY REGION OF RAWALAKOT AZAD JAMMU AND KASHMIR, PAKISTAN

机译：RAWALAKOT AZAD JAAMMU和KASHMIR巴基斯坦山地丘陵地区大豆的根瘤菌接种和磷肥对增强结瘤，种子产量和磷肥利用的效率

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A field experiment was conducted in continuity of our previous study to assess the effect of Rhizobium inoculation (RI) and phosphorus fertilization (P) on growth, yield, nodulation, and P use efficiency of soybean. Different treatments were i) Rhizobium strains (0, S377, S379, and the mixture of S377+S379 i.e. S0, S1, S2, S3); ii) phosphorus fertilizer (0, 50, 100 kg ha-1 i.e. P0, P1, P2). Soybean variety NARC-1 was as used as a testing crop. Results indicated that root and shoot growth increased by RI treatments whether used alone or in combination with P. Rhizobium inoculation increased plant height up to 12% while P did not show significant effect. Increases in soot dry weight, root length and root dry weight due to RI and P was 57 and 22%, 42 and 7%, 55 and 25%, respectively, over the control treatment. Number of nodules increased from 73 in the control to a maximum of 151 in S2 while the number increased from 90 in the control to 147 in P2. Combine application of strains and P increased nodules number from 65 at S0P0 to a maximum of 183 at S2P2. Similar response was also observed for nodules mass. Soybean seed yields ranged between 1710 and 2335 kg ha-1 against 1635 kg ha-1 in the control indicating a maximum of 43% increase over control. Concentration of N and P in plants and their uptake was significantly increased by RI and P. RI also increased the N and protein content of soybean seed. Apparent recovery efficiency (ARE) of applied P was 10-12% and the agronomic, agrophysiological, recovery, utilization efficiencies, and harvest index of P decreased with increasing P rates. Nodule number significantly correlated with the DM yield (r2 = 0.78) and seed yield (r2 = 0.63) while P uptake significantly correlated with root length (r2 = 0.48) and root mass i.e. dry weight (r2 = 0.65). Also a significant correlation existed between N uptake and DM yield (r2 = 0.98) and N uptake and seed yield (r2 = 0.65), P uptake and DM yield (r2 = 0.73), and P uptake and seed yield (r2 = 0.83). The results of present study indicated a substantial growth and yield potential of soybean under the hilly region and increase in yield and N2 fixing potential (nodulation) can be achieved by applying Rhizobium inoculation with P fertilization.
机译：连续进行田间试验以评估接种根瘤菌（RI）和磷肥（P）对大豆生长，产量，结瘤和磷利用效率的影响。不同的处理方法是：i）根瘤菌菌株（0，S377，S379和S377 + S379的混合物，即S0，S1，S2，S3）; ii）磷肥（0、50、100千克ha-1，即P0，P1，P2）。大豆品种NARC-1被用作试验作物。结果表明，无论是单独使用还是与P联合使用，RI处理都能增加根和茎的生长。接种根瘤菌可使株高增加12％，而P却没有表现出明显的作用。与对照相比，由RI和P引起的烟ot干重，根长和根干重的增加分别为57％和22％，42％和7％，55％和25％。结节数从对照组的73个增加到S2中的最大151个，而结节的数量从对照组的90个增加到P2中的147个。菌株和P的联合应用使结节数从S0P0处的65增加到S2P2处的最大值183。结节肿块也观察到类似的反应。对照中的大豆种子产量为1710到2335 kg ha-1，而对照中为1635 kg ha-1，表明比对照最高增加了43％。 RI和P显着增加了植物中N和P的浓度及其吸收。RI也增加了大豆种子中的N和蛋白质含量。施用的磷的表观恢复效率（ARE）为10-12％，并且随着P速率的增加，磷的农艺，农生理，恢复，利用效率和收获指数均降低。根瘤数与DM产量（r2 = 0.78）和种子产量（r2 = 0.63）显着相关，而P吸收与根长（r2 = 0.48）和根质量即干重（r2 = 0.65）显着相关。氮素吸收和DM产量（r2 = 0.98），氮素吸收和种子产量（r2 = 0.65），磷素吸收和DM产量（r2 = 0.73），磷素吸收和种子产量（r2 = 0.83）之间也存在显着相关性。 。目前的研究结果表明，在丘陵地区大豆的大量生长和单产潜力以及通过施用磷肥根瘤菌接种可以提高单产和固氮潜力（结瘤）。

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