ICAR-Central Institute of Temperate Horticulture, Old Air Field, KD Farm, Rangreth, Jammu and Kashmir, 191132, India.
ICAR- Indian Agriculture Research Institute, New Delhi, India.
Sci Rep. 2021 Jan 28;11(1):2488. doi: 10.1038/s41598-021-81739-x.
Nitrous-oxide emission and nitrate addition from agriculture to earth's environment are two main agriculture related anthropogenic causes of environmental degradation that needs greater attention. For addressing the aforesaid issue, new techniques/practices need to be developed and implemented. The present investigation, which was focused on this issue, resulted in developing a new mode of nitrogen (N) placement, i.e. 'mid rib placement upper to corms in two splits (MRPU-2S)', that could reduce nitrous oxide N emission by around 70.11% and, nitrate N leaching and runoff by around 68.26 and 67.09%, respectively, over conventional method, in saffron growing soils of northwest Himalayas. Besides plummeting environmental degradation, MRPU-2S further resulted in enhancing saffron yield by 33.33% over conventional method. The findings of the present investigation were used to develop new empirical models for predicting saffron yield, nitrate N leaching and nitrous-oxide N emission. The threshold limits of nitrate N leaching and nitrous oxide N emission have also been reported exclusively in the present study.
农业向地球环境排放一氧化二氮和添加硝酸盐是造成环境退化的两个主要人为农业因素，需要引起更多关注。为了解决上述问题，需要开发和实施新技术/实践。本研究聚焦于这个问题，提出了一种新的氮（N）布置模式，即“中肋布置在上部两个分裂的鳞茎（MRPU-2S）”，与传统方法相比，可减少约 70.11%的一氧化二氮 N 排放，减少约 68.26%和 67.09%的硝酸盐 N 淋溶和径流，在喜马拉雅山西北部的藏红花种植土壤中。除了大幅降低环境退化外，MRPU-2S 还使藏红花的产量比传统方法提高了 33.33%。本研究的结果被用于开发新的经验模型来预测藏红花产量、硝酸盐 N 淋溶和一氧化二氮 N 排放。硝酸盐 N 淋溶和一氧化二氮 N 排放的阈值限制也仅在本研究中报告。
