Effect of P and S application on yield and nutrient uptake in potato

摘要

Potato is an important food as well as vegetable crop of the world, producing more weight and calories per unit area compared to other food crops (Das, 8). The increase of applied P increases potato yield and tuber grade (Singh, 15). Ramamurthy and Susheela Devi (13) reported that sulphur application increased tuber yield significantly and S content in potato. Antagonistic relationship between P and S has been reported in soils and plants and likewise they influence the yields of crop differently. Several workers have reported that P X S interaction is synergestic at low medium levels of P and antagonistic only at higher levels, usually at 60 kg or more of P_2O_5/ha for field crops (Ali, 1; Aulakh et al., 2 and 3; Pasricha et al., 11). Hence, an experiment was conducted to find out the effect of P and S on yield and uptake of N, P and S by potato.