Vol. 8, Issue 5 (2020)
The nitrogen content and nitrogen uptake efficiency of upland rice varieties under micro irrigation techniques
Author(s): Gritta Elizabeth Jolly, Sajitha Rani T and Lekshmi Sekhar
Abstract: A study was conducted at farm, College of Agriculture, Vellayani to assess the nitrogen content and nitrogen uptake efficiency of upland rice varieties under micro irrigation techniques in the summer of 2019. It was conducted in split plot design with the methods of irrigations as main treatments and varieties of rice as sub treatments. The main plot treatments consisted of:- M1: Sprinkler irrigation at 100% PE, M2: Sprinkler irrigation at 75% PE, M3: Drip irrigation at 100% PE, M4: Drip irrigation at 75% PE and M5: check basin method of irrigation (using hose, which will be given thrice in a week based on evaporation loss) and the subplot treatments were:-V1: Prathyasa and V2: Uma. The study revealed that the grain and straw nitrogen concentration is the highest in the plots irrigated using check basin method. The grain nitrogen content in the variety Prathyasa, irrigated with check basin method was found to be the highest, compared to other treatments. The nitrogen uptake in grain was observed to be the highest in sprinkler irrigation at 100% PE and was on par with drip irrigation at 100% PE, but significantly superior over check basin method of irrigation as well as drip irrigation and sprinkler irrigation at 75% PE. The nitrogen uptake in straw was also observed to be the highest in sprinkler irrigation at 100% PE, but was on par with drip irrigation at 100% PE as well as check basin method of irrigation. The study revealed that the nitrogen content in grain and straw, as well as the nitrogen uptake in rice varies with the methods of irrigation as well as the genotypic differences.
DOI: 10.22271/chemi.2020.v8.i5aa.10595
Pages: 1985-1988 | 766 Views 247 Downloads
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How to cite this article:
Gritta Elizabeth Jolly, Sajitha Rani T, Lekshmi Sekhar. The nitrogen content and nitrogen uptake efficiency of upland rice varieties under micro irrigation techniques. Int J Chem Stud 2020;8(5):1985-1988. DOI: 10.22271/chemi.2020.v8.i5aa.10595
