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Nutrient Mining in Agro-climatic Zones of Jharkhand

机译:贾坎德邦农业气候区的养分开采

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The present paper reviews the present status and future needs of management of natural resources and foodgrain production in different agro-climatic zones of the newly formed Jharkhand state. The region primarily has problems of alnd degradation and soil erosion with acute problems of irrigation. Major emphasis is required for rain water conservation and use and management of excess water in medium and lowlands to increase the productivity of foodgrains to 1.7 t/ha from the present level of 0.9 t/ha. There is acute shortage in foodgrain production even to meet the present population of the state. Nutrient use per unit of cropped land is very low (25 to 30 kg NPK/ha) resulting in large scale mining of soil nutrients. Estimates show that there is a negative balance of plant nutrients to the tune of about 0.18 million tonnes of NPK. Through on-farm research on a participatory mode using a bottom up approach, significant improvements can be brought about in foodgrain production with proper management of naturces.
机译:本文回顾了新成立的贾坎德邦州不同农业气候区自然资源和粮食生产管理的现状和未来需求。该地区主要存在藻类退化和水土流失的问题,并存在严重的灌溉问题。需要特别强调雨水的养护以及中低地的过量水的使用和管理,以将粮食谷物的生产率从目前的0.9吨/公顷提高到1.7吨/公顷。即使满足该州目前的人口,粮食生产也严重短缺。单位耕地的养分使用量非常低(每公顷NPK 25至30公斤),导致大量开采土壤养分。估算表明,植物养分的负平衡约为NPK的18万吨。通过使用自下而上的方法对参与模式的农场研究,可以通过适当地管理自然来显着改善粮食生产。

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