EFFECT OF SOWING DATES AND FERTILITY LEVELS ON NUTRIENT UPTAKE AND QUALITY OF DUAL PURPOSE BARLEY VARIETIES
M. K. CHOUDHARY AND P. C. CHAPLOT
Department of Agronomy
Maharana Pratap University of Agriculture & Technology,
Udaipur-313 001 (Rajasthan), India
(e-mail : pcchaplot@gmail.com)
(Received : 05 December 2015; Accepted : 28 December 2015)
SUMMARY
In order to select best suited dual purpose barley variety to work out optimum sowing date and fertilizer level, a field experiment was conducted during rabi 2011-12. The treatment consisted of combinations of three dual purpose barley varieties (RD 2552, RD 2715 and RD 2035), three sowing dates (15, 25 November and 5 December) and two fertility levels (75 kg N+25 kg P2O5/ha and 60 kg N+20 kg P2O5/ha). Among dual purpose barley varieties, RD 2715 and RD 2552 were equally efficient as both registered highest concentration of protein and N and P uptake by green fodder, grain and straw compared to variety RD 2035. Variety RD 2552 had significantly higher concentration of TDN in green fodder than RD 2715 and 2035. Early sown i. e. 15 November crop resulted significantly in higher protein content and accumulation of N and P in green fodder, grain and straw over late i. e. 25 November and 5 December sowings. TDN content in green fodder increased with delay in sowing. Application of 75 kg N+25 kg P2O5/ha significantly improved protein and TDN content, N and P uptake by fodder, grain and straw over 60 kg N+20 kg P2O5/ha.
Key words:Dual purpose varieties, barley, sowing time, fertility levels, uptake, quality