Rk. Paikaray et al., EFFECT OF NITROGEN, PHOSPHORUS AND PLANT-DENSITY ON YIELD AND NUTRIENT-UPTAKE IN LATE-SOWN NIGER (GUIZOTIA-ABYSSINICA), Indian Journal of Agronomy, 42(3), 1997, pp. 520-523
A field experiment was conducted during the pre winter (rabi) seasons
of 1989 and 1990 at Semiligude, to study the effect of nitrogen, phosp
horus and plant density on yield and nutrient uptake in niger [Guizoti
a abyssinica (L. F.) Cass.]. Application of nitrogen and phosphorus ea
ch al 40 kg/ha significantly increased the grain yield by 60 and 39.5%
over their respective controls. Plant density at 444,000/ha (22.5 cm
x 10 cm) produced maximum seed yield (230 kg/ha). The nitrogen and pho
sphorus content as well as their uptake in seed and haulm increased si
gnificantly up to application of 40 kg/ha of each nutrient. The plant
density did not affect the nutrient contents and their uptake.