ARCHIVES
VOL. 8, ISSUE 2 (2024)
The impact of nitrogen levels and varieties on growth, yield and economics of rice (Oryza sativa L.)
Authors
Minakshi Gupta, Sudhakar Singh, Deepak Pandey, PK Singh, SS Chanda
Abstract
The present investigation entitled “The impact of nitrogen levels and
varieties on growth, yield and economics of rice (Oryza sativa L.)” was
conducted at Shradhay Bhagwati Singh Agriculture Research Farm, Hajipur of
Chandra Bhanu Gupta Krishi Mahavidyalaya, Bakshi Ka Talab, Lucknow (U.P.)
during kharif season of 2023. The experiment was laid out in factorial
randomized block design with three replications keeping three varieties viz.
NDR-2065, NDR-2064 and SHIUAT-1 in main plot and four nitrogen levels (0, 60,
120, 180) in sub plots. The experimental site was silty loam having medium
organic Carbon (0.45%) and available nitrogen (376.0 kg ha-1).
Phosphorous (25.54 kg ha-1) and potassium (165.84 kg ha-1).
Result revealed that there was significant variation among different varieties
and in different nitrogen levels respect of growth. Growth parameters were
higher in NDR-2065 variety as compare to rest of varieties. The yield
attributes as effective tillers m-2, panicle length (cm.), numbers
of grains panicle-1, grains weight panicle-1 (g), panicle
weight (g) and 1000 grain weight were significantly superior in NDR-2065.
Variety NDR-2065 proved significantly superior in terms of grain, straw, total
biological yield and harvest index when compared to rest of varieties. The N–Uptake
(kg ha-1) were significantly superior in NDR-2065 in grain and
straw. The Protein – production (kg ha-1) were significantly
superior in NDR-2065 in grain and straw. Growth parameters as plant height
(cm), dry matter accumulation (gm-2), leaf area index, yield
attributes and yield of rice were higher in paddy with nitrogen level 180 kg ha-1
as compared to rest of levels of nitrogen. The N–Uptake (kg ha-1)
and Protein yield (kg ha-1) were significantly superior in paddy
with nitrogen level 180 kg N ha-1 in grain and straw as compared to
rest of levels of nitrogen. NDR-2065 variety with 180 kg N ha-1 had
higher gross return, net return, and B C ratio of rice crop.
Pages:31-34
How to cite this article:
Minakshi Gupta, Sudhakar Singh, Deepak Pandey, PK Singh, SS Chanda "The impact of nitrogen levels and varieties on growth, yield and economics of rice (<i>Oryza sativa</i> L.)". International Journal of Chemistry Studies, Vol 8, Issue 2, 2024, Pages 31-34
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