Influence of promising rice (Oryza sativa) varieties and nutrient-management practices on micronutrient biofortification and soil fertility in Eastern Himalayas
DOI:
https://doi.org/10.59797/ija.v63i3.5664Keywords:
Biofortification, Lowland rice, Micronutrients, Nutrient management practices, Rice varieties, Soil fertilityAbstract
An experiment was conducted during the rainy season (kharif) of 2016 at Barapani, Meghalaya, to study the influence of promising rice (Oryza sativa L.) varieties and nutrient-management practices on plant nutrient acquisition and soil fertility. The experiment was laid out in split-plot design, replicated thrice, consisting 12 treatment combinations, viz. 4 nutrient-management practices [100% organic, 100% inorganic recommended dose of fertilizer (RDF), integrated nutrient management (INM) (50% RDF + 50% FYM) and control] in main plot, and 3 promising rice varieties [‘Shahsarang 1’, ‘Lumpnah’ and ‘Megha’ Semi-Aromatic 2'] in subplots. The results showed that rice grain yield was significantly higher in INM practice, followed by inorganic and organic practice. Among the varieties, grain yield was significantly higher in ‘Shahsarang 1’ followed by ‘Lumpnah’ and ‘Megha’ SA 2. The INM practice also resulted in highest Fe, Mn, Cu content in rice grains, while the organic practice showed the highest grain Zn. Among the varieties, ‘Megha SA 2’ had highest grain Fe, Mn and Zn content, while ‘Shahsarang 1’ exhibited the highest grain Cu. Micronutrient uptake in rice grains followed the similar trend as that of nutrient-management practices and rice varieties. There was an improvement in available NPK over initial status with higher available NPK in INM practice and higher soil organic carbon in organic practice.
References
Choudhary, A.K. 2016. Scaling-up of protected cultivation in Himachal Pradesh, India. Current Science 111(2): 272–277.
Choudhary, A.K. and Suri, V.K. 2009. Effect of organic manures and inorganic fertilizers on productivity, nutrient uptake and soil fertility in wheat (Triticum aestivum)–paddy (Oryza sativa) crop sequence in western Himalayas. Current Advances in Agricultural Sciences 1(2): 65–69.
Choudhary, A.K. and Suri, V.K. 2014. Integrated nutrient management technology for direct-seeded upland rice (Oryza sativa) in northwestern Himalayas. Communications in Soil Science and Plant Analysis 45(6): 777–784.
DAC. 2016. Agricultural Statistics at a Glance 2015. Department of Agriculture, Cooperation and Farmers Welfare, Ministry of Agriculture and Farmers Welfare, Government of India, New Delhi.
Dass, A., Kaur, R., Choudhary, A.K., Pooniya, V., Raj, R. and Rana, K.S. 2015. System of rice (Oryza sativa) intensification for enhanced productivity and resource-use-efficiency–A review. Indian Journal of Agronomy 60(1): 1–19.
Dass, A., Chandra, S., Uphoff, N., Choudhary, A.K., Bhattacharyya, R. and Rana, K.S. 2017. Agronomic fortification of rice grains with secondary and micronutrients under differing crop management and soil moisture regimes in the north Indian Plains. Paddy and Water Environment 15(4): 745–760.
Kumar, A., Choudhary, A.K and Suri, V.K. 2016. Influence of AM fungi, inorganic phosphorus and irrigation regimes on plant water relations and soil physical properties in okra (Abelmoschus esculentus L.) – pea (Pisum sativum L.) cropping system in Himalayan acid Alfisol. Journal of Plant Nutrition 39(5): 666–682.
Paul, J., Choudhary, A.K., Suri, V.K., Sharma, A.K., Kumar, V. and Shobhna. 2014. Bioresource nutrient recycling and its relationship with biofertility indicators of soil health and nutrient dynamics in rice–wheat cropping system. Communications in Soil Science and Plant Analysis 45(7): 912–924.
Rana, K.S., Choudhary, A.K., Sepat, S., Bana, R.S. and Dass, A. 2014. Methodological and Analytical Agronomy. Post Graduate School, Indian Agricultural Research Institute, New Delhi, India, Pp. 276.
Sikdar, M. 2015. Dual burden of malnutrition and hidden hunger among tribal children of north-east India. Current Science 108(2): 152–153.
