Effect of Nitrogen on Grain Production of Hybrid Maize (RML-4/NML-2) in the Acid Soil of Rampur, Chitwan [printed text] / Adhikary, Bishnu H., Author ; B.R. Baral, Author ; Shrestha, J., Author . - 2012.
In: Proceedings of Abstracts. pp 20. Crops and other papers..Paper presented at the Fourth SAS/N Convention, Conference on Organic Agriculture, Jointly Organized by SAS/N, Nepal Horticulture Society, IAAS (TU) and Sustainable Agriculture Development Programme, Kathmandu, Nepal held on 22-24 Chaitra, 2068 (4-6 April, 2012). (Full paper 10 p).
Languages : English (eng)

Keywords:

Grain  yield;  hybrid  maize;  plant  densities;  nitrogen  rates  and  significant  effect

Abstract:

Hybrid maize (RML-4/NML-2) was evaluated for its grain production by the application of different levels of nitrogen (60, 120 and 180 kg N ha-1) at varying plant densities (55555, 66666 and 83383 plants/ha) along with 60 kg P2O5 and 40 kg K2O ha-1 in the acidic soil (pH 5.3) of National Maize Research Program, Rampur, Chitwan during the years of 2008/09 and 2009/10. Factorial randomized complete block design(RCBD) with three replications was employed in the experiment. The crop was planted at the plot size of 18 m2 (3.6 × 5 m). The crop was planted in the month of September and harvested in February. The result indicated a sharp response of nitrogen application to this crop whereas the effect of density was observed to be non-significant. Two years mean yield results showed that highest grain yield (11.10 t ha-1) was recorded when the crop was supplied with 180 kg nitrogen and with 83383 plants ha-1 followed by the crop supplied with 120 kg N ha-1 and 66,666 plant population (10.69 t ha-1). It is inferred that application of high dose of N (180 kg N ha-1) could help increase hybrid maize grain production in acidic soils.