Effect of irrigation and nitrogen fertilization on water relations canopy temperature yield nitrogen uptake and water use of onion
Indian Journal of Agricultural Sciences 56(12): 858-867
ISSN/ISBN: 0019-5022 Accession: 005248995
In a 2-year experiment, an irrigation at 0.45 or 0.65 bar soil-water potential resulted in higher bulb yield, N uptake and water-use efficiency than an irrigation either at 0.25 or 0.85 bar soil-water potential in 'Pusa Red' onion (Allium cepa Linn.). N fertilization decreased the relative water content, osmotic potential and canopy temperature but increased the bulb yield, N uptake, and water-use efficiency. The optimum level of N was found to be 150 kg/ha.