The influence of different crop establishment methods and fertilizer sources on growth attributes and yield of rice was studied during Kharif season of 2009 and 2010 on lateritic soils. The experiment was laid out in split plot design replicate thrice with five crop establishment methods (transplanting, pre-monsoon dibbling of seeds, dibbling of seeds with the onset of monsoon, transplanting of seedling by Thomba method and system of rice intensification) in main plots and three fertilizer sources (recommended dose of fertilizers-120:60:60 kg NPK ha -1 , placement of urea-DAP briquettes and placement of urea-suphala briquettes) in sub plots. From the present investigation, it can be concluded that for growing kharif rice under upland situation, crop need to be established by transplanting method and amended with urea-DAP briquettes (@ 168.75 kg ha -1 ), to obtain higher yield. However, under inadequate rainwater for puddling, Thomba method with urea-DAP briquettes (@ 168.75 kg ha -1 ) is suitable, and under labour scarcity condition, pre-monsoon dibbling of seeds with urea-DAP briquettes (@ 168.75 kg ha -1 ) is one of the alternatives to conventional transplanting method under upland conditions.
Urea-DAP briquettes, crop establishment methods and rice
AbstractArticle History
A field experiment was conducted on Agronomy farm, College of Agriculture, Dapoli, Maharashtra, India during kharif (June) 2015 and 2016 to study of agrometeorological indices as affected bydifferent duration rice varieties and crop establishment methods. The experiment was laid out according to split plot design with three replications. Twenty four treatment combinations comprised of four main plot treatments: Drilling, Early transplanting (15 days after sowing), Transplanting as per recommendation (21 days after sowing) and Transplanting with Thomba method (under insufficient rain water for puddling, this method usually preferred. In this case transplating has been completed without puddling. With the help ofpointed bamboo stick holes has been made and seedlings inserted into that holes) and six subplot treatments Karjat-184, Palghar-1, Karjat-2, Sahyadri-2, Karjat-3 and Karjat-7. To obtain higher yield from kharif rice, crop should to be established by transplanting method with variety Sahyadri-2 followed by Karjat-7. However, early transplanting and Thomba methods are the alternatives to conventional transplanting method. Because with Thomba method we can complete transplanting of rice even if insufficient rainwater is there for puddling and get the better yield comparatively. The highest GDD, Hydrothermal units and Helio-thermal units required by Karjat-2 variety, while higher Heat use efficiency and Helio-thermal use efficiency recorded by Sahyadri-2 variety. Rice, Crop establishment methods, varieties, agrometeorological indices
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