ABSTRACT

Though application of chemical fertilizers has contributed significantly to the huge increase in the world food production, the adverse impacts of it are well known. To develop an organic farming system an experiment was conducted on paddy, in old alluvial soil zone, with vermicompost prepared from screened municipality solid waste and different doses of bio-fertilizer and chemical fertilizer which is productive, profitable, enhances soil health and conserves the natural resource. We compared crop yields, crop morphological and morpho-physiological characters along with economical analysis obtained from three consecutive years experiment (2017 to 2019) along with long-term soil sustainability. It has been observed that 25% NPK fertilizer can safely be supplemented by low cost and natural resource-based vermicompost at 2.5 t ha⁻¹ to achieve long-term sustainability in paddy cultivation that is more productive and profitable.

摘要

尽管化肥的应用对世界粮食产量的巨大增长做出了重大贡献，但其不利影响是众所周知的。为了发展有机农业系统，在旧冲积土区的稻田上进行了实验，用筛选的城市固体废物和不同剂量的生物肥料和化学肥料制备蚯蚓粪，这具有高产、有利可图、增强土壤健康和保护自然资源。我们比较了作物产量、作物形态和形态生理特征以及从连续三年实验（2017 年至 2019 年）获得的经济分析以及长期土壤可持续性。据观察，25% 的 NPK 肥料可以安全地补充 2.5 吨/公顷的低成本和基于自然资源的蚯蚓堆肥^-1以实现更高产和更有利可图的水稻种植的长期可持续性。