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首页> 外文期刊>Communications in Soil Science and Plant Analysis >Effect of combined use of organic and inorganic sources of nutrients on sunflower yield, soil fertility, and overall soil quality in rainfed alfisol.
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Effect of combined use of organic and inorganic sources of nutrients on sunflower yield, soil fertility, and overall soil quality in rainfed alfisol.

机译：有机和无机养分来源结合使用对雨养阿尔菲索尔向日葵产量，土壤肥力和整体土壤质量的影响。

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摘要

To study the response of inorganic and organic nitrogen (N) sources both alone and in conjunction and their influence on soil quality, a field experiment was conducted during kharif and rabi seasons using sunflower (MSFH-8) as test crop. The experimental site soil was Typic Haplustalf situated at Hayatnagar Research Farm of Central Research Institute of Dryland Agriculture, Hyderabad, India, at 17. 18?N latitude, 78. 36?E longitude. The experiment design was a simple randomized block design with 11 treatments replicated four times. Among all the treatments, vermicompost (VC)+Fert at 25+25 kg N ha-1 recorded the highest grain yields of 1878 and 2160 kg ha-1 during both kharif and rabi seasons, respectively, which were 43.9 and 85.1% higher than their respective control plots. Apparent N recovery varied from as little as 38.30% (FYM at 50 kg N ha-1) to 62.16 (25 kg N ha-1) during kharif and 49.65 (75 kg ha-1) to 83.28% (VC+Fert at 25+25 kg N ha-1) during rabi season. Conjunctive nutrient treatments proved quite superior to other set of treatments in improving the uptake of N, phosphorus (P), potassium (K), sulfur (S), and micronutrients in sunflower and their buildup in the soil. Highest relative soil quality indexes (RSQI) were observed under VC+Fert at 25+25 kg N ha-1 (1.00) followed by VC+Gly at 25+25 kg N ha-1 (0.87). Considering the yield and relative soil quality indices (RSQI), conjunctive applications of VC with either inorganic fertilizer, FYM, or Gly at 25+25 kg N ha-1 could be a successful and sustainable soil nutrient management practice in semi-arid tropical Alfisols. Besides this, the fertilizer N demand could be reduced up to 50%.
机译：为了研究单独和结合使用的无机和有机氮（N）源的响应及其对土壤质量的影响，在海里夫和狂犬病季节中使用向日葵（MSFH-8）作为试验作物进行了田间试验。实验地点的土壤是典型的Typic Haplustalf，位于印度海得拉巴旱地农业中央研究院的Hayatnagar研究农场，北纬17度，北纬78度，东经36度。实验设计是简单的随机区组设计，其中11种治疗方法重复了4次。在所有处理中，在哈里夫和狂犬病季节中，ver肥（VC）+ Fert在25 + 25 kg N ha-1处分别记录了最高的单产，分别为1878和2160 kg ha-1，比分别高43.9％和85.1％。它们各自的控制图。表观氮的回收率从38.30％（FYM在50 kg N ha-1时）到62.16（25 kg N ha-1）在海里夫期间和49.65（75 kg ha-1）到83.28％（VC + Fert在25狂犬病季节+25千克N ha-1）。在改善向日葵中氮，磷（P），钾（K），硫（S）和微量营养素的吸收以及它们在土壤中的累积量方面，联合营养素处理被证明优于其他一系列处理。 VC + Fert在25 + 25 kg N ha-1（1.00）下观察到最高相对土壤质量指数（RSQI），其后在25 + 25 kg N ha-1（0.87）下观察到VC + Gly。考虑到产量和相对土壤质量指数（RSQI），在25 + 25 kg N ha-1下与无机肥料，FYM或Gly一起使用VC可以在半干旱热带半透明土壤中成功且可持续地进行土壤养分管理。除此之外，肥料氮需求最多可减少50％。

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