In this study, change in proximate composition in forage sorghum cultivars as influenced by nitrogen (N)
fertilization and seed rate harvested at different growth stages was planned through field experiments during
consecutive years. Three forage sorghum cultivars viz., JS-2002, JS-263 and Chakwal sorghum were sown
under three N levels (0, 60 and 120 kg ha-1
) by using three seed rates i.e. 75, 100 and 125 kg ha-1
. Results
showed that all individual effect of treatments had a variable influence on quality of sorghum cultivars. JS2002
had higher crude protein content (CP), crude protein yield (CPY), crude fibre (CF), crude fibre yield
(CFY), ether extractable fats (EE), total ash content (TA) and organic matter (OM) whilst JS-263 produced
greater nitrogen free extract (NFE) than other cultivars. Increasing N rates (0 to 120 kg ha-1
) raised all above
mention bio-chemical attributes but not NFE. Similarly, increased seed rate enhanced accumulation of CP,
CF, EE, TA, CPY and CFY while caused reduction of OM and NFE. Genotypic variations may have
influenced the accumulations of these traits however, differences were not significant. In conclusion, sorghum
cultivar JS-2002 seeded at 75 kg ha-1 with 120 kg N ha-1 application produced better quality forage under subtropical
conditions
Forage sorghum cultivars seed rate N levels proximate quality growth stages sub-tropical conditions
Primary Language | English |
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Journal Section | Articles |
Authors | |
Publication Date | December 15, 2016 |
Published in Issue | Year 2016 Volume: 21 Issue: 2 |
Turkish Journal of Field Crops is published by the Society of Field Crops Science and issued twice a year.
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Ege University, Faculty of Agriculture,Department of Field Crops
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