Volume : V, Issue : II, February - 2015

Nitrogen management using Leaf Color chart (LCC) and nitrogen level in Kharif rice

S. B. Satpute, T. Das, D. T. Surje, S. K. Maity

Abstract :

Experiment on rice (cv. MTU 7029) was conducted at the Institute of Agriculture, Visva–Bharati during rainy season of 2009. The experiment consisted of treatments such as fifteen factorial combinations of four LCC values (3, 4 and 5) and five N rates at each time of application (10, 15, 20, 25 and 30 kg N ha–1) and ). The treatments also included one blanket split application of N and one control. The grain yield at LCC 5 was 46.2% and 19.9% more respectively over grain yield at LCC 3 and LCC 4, whereas grain yield at LCC 4 was 22.0% more over grain yield at LCC 3. Straw yield also increase gradually with higher LCC values. Grain yields at all the higher level of N application each time i.e. 15, 20, 25 and 30 kg N ha–1 were comparable with each other and significantly higher than grain yield recorded at 10 kg N ha–1. application of N at the rate of 15 or 20 kg N ha–1 each at LCC value 5 receiving 143 and 153 kg N ha–1 respectively recorded 16.5% and 18.3% increased grain yields. The higher values of LCC–N application both agronomic efficiency and physiological efficiency were improved

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Article: Download PDF   DOI : 10.36106/ijar  

Cite This Article:

S.B. Satpute, T. Das, D.T. Surje, S. K. Maity Nitrogen management using Leaf Color chart (LCC) and nitrogen level in Kharif rice Indian Journal of Applied Research, Vol.5, Issue : 2 February 2015

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