Optimization of sowing and fertilizer requirement of barley (Hordeum vulgare) under irrigated condition

Abstract

A field experiment was carried out at Wheat Research Station, Gujarat Agricultural University, Vijapur, during the winter seasons of 1996-97, 1997-98 and 1998-99, to find out the appropriate sowing time (15, 30 November and 15 December), nitrogen (60, 80 and 100 kglha) and phosphorus (0, 20 and 40 kglha) requirement of barley (Hordeum vulgare L.). Sowing time and fertilizer levels positively influenced the productivity. Timely sown, i.e. 15 and 30 November, crop resulted in significantly better grain and straw yields than the late-sown (1 5 December). Ni- trogen 100 kglha, being at par with 80 kglha, was superior to 60 kglha in respect of grain and straw yields. Among the phosphorus levels, higher grain yield achieved under 40 kg P,O$ha over the lower levels. Significantly higher N and P uptake was recorded in 15 November sown crop. Application of N 80 kglha and P 40 kglha also recorded significant values for nutrient uptake. Sowing of barley during the second fortnight of November and nourished with 80 kg N/ha and 40 kg P/ha fetched better profit.