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Crop and Soil Response to Organic Management Under Mediterranean Conditions
International Journal of Plant Production ( IF 2.1 ) Pub Date : 2019-11-07 , DOI: 10.1007/s42106-019-00079-z
Rita Leogrande , Carolina Vitti , Alessandro Vittorio Vonella , Domenico Ventrella

Organic agriculture can contribute to maintain the long-term sustainability of the agroecosystems, preserve and improve soil quality and guarantee good quality food products. The objective of this study was to investigate the effects of different organic fertilizers and a biostimulant on crop performance and soil properties. The research was performed in an experimental farm in Southern Italy and covered a 2-year rotation of lentil and durum wheat for a period of 4 years. An organic commercial fertilizer and a compost, obtained from municipal wastes, with and without a commercial biostimulant, were compared in a randomized complete block design. The results showed that compost, as the only nutrient source, did not significantly decrease lentil and wheat grain yields, even though, in 2011 and 2012, wheat grain quality was better with the organic commercial fertilizer. Probably, the mineralization rate of compost, depending also on environmental conditions, and, consequently, the nutrient availability was not enough to meet the needs of wheat crop. Biostimulant significantly increased the straw yield of lentil by 20% and the weight of 1000 seeds of wheat by 4%. At the end of the experiment, the compost, applied at low doses, significantly increased soil TOC content (+ 3.4%) compared to the organic commercial fertilizers. Conversely, the biostimulant seemed to have no effect on the soil properties. Overall, under the local Mediterranean conditions, the compost may be used as an alternative nutrient source, with positive effects for lentil and wheat productivity, economic sustainability and soil fertility.

中文翻译:

地中海条件下作物和土壤对有机管理的反应

有机农业有助于维持农业生态系统的长期可持续性、保护和改善土壤质量并保证优质食品。本研究的目的是研究不同有机肥料和生物刺激素对作物生长性能和土壤特性的影响。该研究在意大利南部的一个实验农场进行,涵盖了为期 4 年的小扁豆和硬质小麦的 2 年轮作。在随机完整区组设计中比较了使用和不使用商业生物刺激剂的有机商品肥料和从城市垃圾中获得的堆肥。结果表明,堆肥作为唯一的营养来源并没有显着降低小扁豆和小麦的产量,尽管在 2011 年和 2012 年,小麦籽粒品质以有机商品肥为主。可能,堆肥的矿化率也取决于环境条件,因此,养分供应不足以满足小麦作物的需求。生物刺激素使扁豆的秸秆产量显着增加了 20%,使 1000 粒小麦种子的重量增加了 4%。在实验结束时,与有机商品肥料相比,以低剂量施用的堆肥显着增加了土壤 TOC 含量(+ 3.4%)。相反,生物刺激素似乎对土壤性质没有影响。总体而言,在当地地中海条件下,堆肥可用作替代营养来源,对扁豆和小麦的生产力、经济可持续性和土壤肥力产生积极影响。堆肥的矿化率,也取决于环境条件,因此,养分供应不足以满足小麦作物的需求。生物刺激素使扁豆的秸秆产量显着增加了 20%,使 1000 粒小麦种子的重量增加了 4%。在实验结束时,与有机商品肥料相比,以低剂量施用的堆肥显着增加了土壤 TOC 含量(+ 3.4%)。相反,生物刺激素似乎对土壤性质没有影响。总体而言,在当地地中海条件下,堆肥可用作替代营养来源,对扁豆和小麦的生产力、经济可持续性和土壤肥力产生积极影响。堆肥的矿化率,也取决于环境条件,因此,养分供应不足以满足小麦作物的需求。生物刺激素使扁豆的秸秆产量显着增加了 20%,使 1000 粒小麦种子的重量增加了 4%。在实验结束时,与有机商品肥料相比,以低剂量施用的堆肥显着增加了土壤 TOC 含量(+ 3.4%)。相反,生物刺激素似乎对土壤性质没有影响。总体而言,在当地地中海条件下,堆肥可用作替代营养来源,对扁豆和小麦的生产力、经济可持续性和土壤肥力产生积极影响。养分供应不足以满足小麦作物的需要。生物刺激素使扁豆的秸秆产量显着增加了 20%,使 1000 粒小麦种子的重量增加了 4%。在实验结束时,与有机商品肥料相比,以低剂量施用的堆肥显着增加了土壤 TOC 含量(+ 3.4%)。相反,生物刺激素似乎对土壤性质没有影响。总体而言,在当地地中海条件下,堆肥可用作替代营养来源,对扁豆和小麦的生产力、经济可持续性和土壤肥力产生积极影响。养分供应不足以满足小麦作物的需求。生物刺激素使扁豆的秸秆产量显着增加了 20%,使 1000 粒小麦种子的重量增加了 4%。在实验结束时,与有机商品肥料相比,以低剂量施用的堆肥显着增加了土壤 TOC 含量(+ 3.4%)。相反,生物刺激素似乎对土壤性质没有影响。总体而言,在当地地中海条件下,堆肥可用作替代营养来源,对扁豆和小麦的生产力、经济可持续性和土壤肥力产生积极影响。与有机商品肥料相比,低剂量施用显着增加了土壤 TOC 含量(+ 3.4%)。相反,生物刺激素似乎对土壤性质没有影响。总体而言,在当地地中海条件下,堆肥可用作替代营养来源,对扁豆和小麦的生产力、经济可持续性和土壤肥力产生积极影响。与有机商品肥料相比,低剂量施用显着增加了土壤 TOC 含量(+ 3.4%)。相反,生物刺激素似乎对土壤性质没有影响。总体而言,在当地地中海条件下,堆肥可用作替代营养来源,对扁豆和小麦的生产力、经济可持续性和土壤肥力产生积极影响。
更新日期:2019-11-07
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