Influence of Levels of Phosphorus on Yield Components and Yield of Zero Till Maize in Rice-maize (Zea mays L.) Sequence
Ch. Ramesh *
Agricultural College, Sircilla, Professor Jayashankar Telangana State Agricultural University, Telangana (505405), India.
M. Venkata Ramana
Professor Jayashankar Telangana State Agricultural University, Hyderabad, Telangana (500030), India.
G. Jaya Sree
College of Agriculture, Professor Jayashankar Telangana State Agricultural University, Hyderabad, Telangana (500030), India.
*Author to whom correspondence should be addressed.
Abstract
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.
Keywords: Maize, phosphorus, yield, yield components, zero till