Influence of Levels of Phosphorus on Yield Components and Yield of Zero Till Maize in Rice-maize (Zea mays L.) Sequence

Aims: Influence of levels of phosphorus on yield components and yield of zero till maize in rice-maize (Zea mays L.) sequence.

Methodology: Field experiment was conducted during two successive years at College of Agriculture, Rajendranagar, Hyderabad on rice-zero till maize sequence. The experiment was replicated thrice with 5 levels of P2O5 in rice and 3 levels of P2O5 in maize.

Results: The direct application of 60 kg P2O5 ha-1 to maize recorded significantly higher value of yield components, grain and stover yield of maize over lower Phosphorus levels. The residual effect of 100% and /or 75% RDP (recommended dose of Phosphorus) applied to rice had a greater positive influence on the yield components and yield over lower phosphorus levels. The cumulative effect indicated that application of 100% RDP to both the crops and 75 % RDP to rice and 100% RDP to maize had a positive effect on maize and produced significantly greater yield components and yield over other phosphorus treatments.