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首页> 外文期刊>Journal of New Seeds >Sustainability of different nutrient combinations in a long-term rice-wheat cropping system.
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Sustainability of different nutrient combinations in a long-term rice-wheat cropping system.

机译：长期稻麦系统中不同养分组合的可持续性。

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摘要

Sustainability of any cropping system across years influences food safety in a particular region, as cropping systems are mostly region/zone specific. The yield sustainability of 12 nutrient treatments that were combinations of organic and inorganic sources (inorganic, organic or different combinations of both) in a rice-wheat cropping system, were studied using information from experiments conducted across 17 years in the same field (West Bengal, India). Existing statistical measures along with a proposed measure of sustainability was used to compare the efficiency of different nutrient treatments. The highest productivity did not necessarily mean highest sustainability; mostly the treatments with combination of inorganic and 25-50% organic nutrients in rice not only yield more, but they were also moderately sustainable in nature. Clustering analysis showed that control treatment (T1) itself formed a group, whereas the treatment with only inorganic fertilizer at different proportions of recommended fertilizer dose during rice season formed another group and the treatments in combinations of both the types of nutrients at different proportions and levels formed a different group relative to their yield response in the component crops, as well as in the rice-wheat cropping system..
机译：多年以来任何种植系统的可持续性都会影响特定地区的食品安全，因为种植系统主要针对特定​​地区/地区。利用在同一田间（西孟加拉邦）历时17年的实验信息，研究了12种营养处理的产量可持续性，这些营养处理是稻麦种植系统中有机和无机来源（无机，有机或两者的不同组合）的组合，印度）。现有的统计量以及拟议的可持续性量度用于比较不同养分处理的效率。最高的生产率并不一定意味着最高的可持续性。大多数情况下，将无机和25-50％的有机养分结合在水稻中的处理不仅产量更高，而且在自然界也具有中等可持续性。聚类分析表明，对照处理（T1）本身形成了一个群体，而仅在水稻季节中以推荐肥料剂量的不同比例使用无机肥料的处理又形成了另一组，并且两种营养素类型以不同的比例和水平组合使用相对于成分作物以及水稻-小麦作物系统中的产量响应，它们形成了不同的群体。

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