Effect of crop geometry and nitrogen levels on growth and yield of newly develop pearl millet hybrid HHB 197
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Date
2008
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CCSHAU
Abstract
The present experiment entitled “Effect of crop geometery and
nitrogen levels on growth and yield of newly develop pearlmillet hybrid
HHB197” was conducted at Research farm, Choudhary Charan Singh
Haryana Agricultural University, Hisar during Kharif season of 2007.
Four spacing patterns viz., 45 x 12, 45 x 16, 60 x 12 and 60x16 cm and
five nitrogen levels viz., control, 40, 80, 120 and 160 kg N ha-1 tested in
factorial randomized block design (FRBD) with three replications.
Plant growth in terms of height, number of tillers per plant, dry
matter accumulation plant-1, leaf area plant-1 increased significantly
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with increase in spacing at most of the stages of observations.
Similarly, yield attributing characters like effective tillers plant-1, 1000
grain weight, length of earhead, girth of earhead and NPK, protein
content increased significantly with increase in spacing whereas, grain,
stover and biological yield, NPK uptake, net return and B: C ratio
recorded significantly higher with 45 x 16 cm spacing over 45 x 12, 60
x 12 and 60x16 cm spacing.
Various levels of nitrogen influenced plant growth in terms of
height, number of tillers plant-1, dry matter accumulation plant-1, leaf
area plant-1 and leaf area index significantly at 160 kg N ha-1 over
120,80,40 kg N ha-1 and control. Similarly, yield attributing characters,
yields, NPK content and uptake, protein content and protein yield
increased significantly with increasing nitrogen levels. Net return and
B: C ratio recorded highest with nitrogen level 160 kg N ha-1.
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Keywords
Spacing, nitrogen, Yields, Planting, Grain, Developmental stages, Millets, Crops, Hybrids, Biological development