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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Soil-based fertilizer recommendations for precision farming.
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Soil-based fertilizer recommendations for precision farming.

机译：推荐用于精准农业的土壤肥料。

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In India, current fertilizer recommendations are very old and developed based on agro-climatic zones. The assumption is that agro-climatic zones are homogenous units. However, analyses of agro-climatic zones reveal variability in soil within each zone. Current agro-climatic zonal fertilizer recommendations are generalized for entire zone and not addressed to specific soil types. To know the soil variability within the National Agricultural Research Project (NARP) agro-climate zone and suitability of current fertilizer recommendations, sugarcane in northern dry zone of Karnataka was studied as a test crop. The results indicated that agro-climatic zones vary widely in soils and in their potentials, behaviour and response to management. It was also observed that fertilizer application efficiency varied within each zone and within the management units. These differences contributed to errors of both excess and insufficient applications. Besides, there is a continuous removal of secondary and micronutrients by crops in all farming situations resulting in inappropriate management practices. All these suggest that soil-based fertilizer recommendations should be preferred to achieve precision in farming and to maximize crop production, maintain soil health and minimize fertilizer misapplication.
机译：在印度，当前的肥料建议非常古老，并且根据农业气候区制定。假设是农业气候带是同质单位。但是，对农业气候区的分析显示了每个区内土壤的变异性。当前针对整个区域的农业气候带状肥料建议均已推广，但并未针对特定的土壤类型。为了了解国家农业研究计划（NARP）农业气候区内的土壤变异性和当前肥料建议的适用性，对卡纳塔克邦北部干旱地区的甘蔗进行了试验。结果表明，农业气候区在土壤及其潜力，行为和对管理的反应方面差异很大。还观察到在每个区域和管理单位内肥料施用效率不同。这些差异导致应用程序过多和不足的错误。此外，在所有耕种情况下，农作物都会不断清除次要营养素和微量营养素，从而导致不适当的管理做法。所有这些表明，应优先考虑以土壤为基础的肥料建议，以实现精确的耕作并最大限度地提高作物产量，保持土壤健康并最大程度减少肥料的误用。

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