National Research Centre for Citrus, Amravati Road, Nagpur - 440010, India.
Growing scale of B-deficiency, second to Zn-deficiency, has imparted a greater significance to B-amendment. An adequate B-amendment ensures not only ample fruit set, but guarantees optimum fruit yield with excellent fruit quality in terms of juice content, ratio between total soluble solids and acidity, and fruit peel colour. A critical analysis of work accrued in the past from world over using citrus as a test crop suggested, has revealed a variety of soil-plant test values, fit to diagnose B-constraints in citrus orchards established under varying edaphological conditions. Large variation in B-application through soil and foliar spray showed that both the methods of fertilization are equally efficient in meeting crop B-requirement. However, the combination of two methods offers a better scope to raise a nutrient constraint free production.
