The Effect of Micronutrients on Yield Attributes, Yield and Nutrient Uptake of Hybrid Rice (Oryza sativa L.)

A field experiment was conducted during the rainy seasons of 2003 and 2004 at Agricultural Farm Bilaspur, Chhattisgarh to observe the effect of micronutrients (Zn, B and Mn) alone or in combination on the yield, some yield attributes and nutrient uptake of hybrid rice (Oryza sativa L.). The experiment was laid-out in randomized complete block design (RCBD) with eight fertilizer treatments. The highest value of yield, different yield attributes and uptake of nutrients were recorded in the plots receiving boron in combination with Mn and Zn. Application of Mn+B+Zn significantly increased no of grains/ear and 1000 grain weight by 29.39 and 16.60% respectively over control. Application of Mn+B+Zn to rice crop improved its seed and straw yield (47.59 and 47.43%) and N, P and K uptake (83.33, 92.68 and 95.27%) thus emphasizing the need for micronutrient application to rice and other crops.