Influence of nano nitrogen and nano zinc fertilizers on nutrient uptake and use efficiency in paddy under different systems of establishment

Q4 Environmental Science

Ecology, Environment and Conservation Pub Date : 2023-01-01 DOI:10.53550/eec.2023.v29i01.053

T. Theerthana, S. Yogananda, M. Thimmegowda, H. Jayadeva, S. Prakash, A. Gowda, R. Krupashree, G. Raddy, U. Pandu

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Abstract

Field experiment on “Influence of nano nitrogen and nano zinc fertilizers on nutrient uptake and Use efficiency in paddy under different systems of establishment”. Randomised complete block design (RCBD) College of Agriculture, Vishweshwaraiah Canal Farm, Mandya, Karnataka, during summer 2022. The study included 14 treatments with various concentrations and sources of nitrogen with nano nitrogen and nano zinc under various establishment methods, including transplanted paddy and system of rice cultivation (SRI), as well as various methods of applying nano fertilisers, such as seed treatment, root dipping, and foliar spray. The results indicated that significantly higher nitrogen uptake (94.42, 79.10 and 173.52 kg ha-1, respectively), phosphorous, potassium uptake and higher nitrogen, phosphorous and potassium use efficiency (58.76, 105.01 and 73.51 kg kg-1 nutrients applied, respectively) was obtained with the application of 75% N and two foliar sprays of nano nitrogen and nano zinc at 25 to 30 and 45 to 50 DAT under SRI method of establishment. SRI method of rice establishment and nano nutrient application will significantly increase the primary, secondary and micro nutrient uptake

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不同设置制度下纳米氮肥和纳米锌肥对水稻养分吸收和利用效率的影响

“不同设置制度下纳米氮肥和纳米锌肥对水稻养分吸收和利用效率的影响”田间试验。随机完全区块设计(RCBD)农学院，visheshwaraiah运河农场，Mandya，卡纳塔克邦，2022年夏季。本研究包括14个不同氮浓度和氮源的纳米氮和纳米锌处理，在不同的建立方法下，包括移栽水稻和水稻栽培系统(SRI)，以及不同的施用纳米肥料的方法，如种子处理、根浸、叶喷。结果表明，在SRI方法下，施用75%氮肥，在25 ~ 30和45 ~ 50 d时喷施纳米氮和纳米锌，可获得较高的氮素吸收量(分别为94.42、79.10和173.52 kg hm -1)，磷、钾吸收量和氮、磷、钾利用效率(分别为58.76、105.01和73.51 kg kg kg-1)。水稻建立SRI方法和施用纳米营养物将显著增加初级、次级和微量养分的吸收

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Ecology, Environment and Conservation Environmental Science-Nature and Landscape Conservation

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期刊介绍： Published Quarterly Since 1995. Ecology, Environment and Conservation is published in March, June, September and December every year. ECOLOGY, ENVIRONMENT AND CONSERVATION is one of the leading International environmental journal. It is widely subsribed in India and abroad by Institutions and Individuals in education and research as well as by Industries, Govt. Departments and Research Institutes.