Rhizosphere dynamics as influenced by nitrogen levels and plant geometry in groundnut (Arachis hypogeae L.)

A field experiment was conducted at Agricultural College Farm, Bapatla, Andhra Pradesh on sandy upland soils during post-monsoon, 2018. The experiment consisted of four levels of nitrogen and four population densities laid out in randomized block design with factorial concept. Nutrient content significantly increased with increase in nitrogen levels and higher content of N, P, K, Zn and Fe were obtained with 90 kg N ha-1 which was significantly on par with 60 kg N ha-1 .