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首页> 外文期刊>Journal of plant nutrition and soil science >Yield response of wheat and barley to inoculation of plant growth promoting rhizobacteria at various levels of nitrogen fertilization
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Yield response of wheat and barley to inoculation of plant growth promoting rhizobacteria at various levels of nitrogen fertilization

机译：氮肥水平下小麦和大麦对植株促根瘤菌接种的产量响应

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摘要

The yield response of a wheat (Kirik) and a barley (Tokak 157/37) cultivar to inoculation with Azospirillum brasilense Sp246 and Bacillus sp. OSU-142 was studied in relation to three levels of N fertilization (0, 40, and 80 kg ha(-1)) under field conditions in Erzurum, Turkey, in 1999 and 2000. Seed inoculation with A. brasilense Sp246 significantly affected yield and yield components, both in wheat and barley. On average of years and N doses, inoculation with A. brasilense Sp246 increased spike number per m(2), grain number per spike, grain yield, and crude protein content by 7.2, 5.9, 14.7, and 4.1% in wheat and by 6.6, 8.1, 17.5, and 5.1% in barley, respectively, as compared to control. Inoculation with Bacillus sp. OSU-142 significantly increased kernel number per spike in wheat, but no significant effect was determined in the other characteristics. Grain yields and yield components were also higher at all levels of nitrogen fertilizer in the inoculated plots as compared to the control. However, these increases diminished at high fertilizer levels. These results suggest that application of the growth promoting bacteria A. brasilense Sp246 may have the potential to be used as a biofertilizer for spring wheat and barley cultivation in organic and low-N input agriculture.
机译：小麦（Kirik）和大麦（Tokak 157/37）品种的产量对接种巴西偶氮螺旋菌Sp246和芽孢杆菌sp。的响应。在1999年和2000年的土耳其埃尔祖鲁姆市，在田间条件下研究了OSU-142与氮肥的三个水平（0、40和80 kg ha（-1））的关系。巴西盲肠Sp246接种种子显着影响产量和产量成分，包括小麦和大麦。在平均年限和N剂量下，巴西青枯菌Sp246的接种使小麦的每m（2）穗数，每穗的穗数，籽粒产量和粗蛋白含量分别增加7.2、5.9、14.7和4.1％，小麦增加6.6。与对照相比，大麦分别为8.1％，17.5％和5.1％。接种芽孢杆菌。 OSU-142显着增加了小麦每个穗的籽粒数，但在其他特征上未发现显着影响。与对照相比，在接种的土地上，在所有水平的氮肥条件下，谷物的产量和产量组成也更高。但是，在高肥料水平下，这些增加量减少了。这些结果表明，生长促进细菌A. brasilense Sp246的应用可能具有用作有机和低氮输入农业中春小麦和大麦栽培的生物肥料的潜力。

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