Response of turmeric to methods of application and potash fertilizer in Haryana

摘要

Field trials on turmeric (Curcuma longa L.) were conducted to find out the best method and optimum level of potassium on loamy soils of North-Eastern Haryana. Split application of potash (K), half at planting and half at earthing up gave the highest rhizome yield (257.4 q/ha) and was found significantly better than the application of K fully at planting (241.7 q/ha)) or at earthing up (228.0 q/ha). In terms of the rhizome yield, the crop responded significantly up to application of 50 kg K20/ha. Interaction between method and level of K application was found significant in respect of the rhizome yield during 2002-03 which revealed that the crop required only 25 kg K_2O/ha if K was applied in two equal splits at planting and earthing up.