Effect of liming on yield and nutrient uptake of rice in acidic soils

Abstract

Soil acidity is an important agricultural problem while evaluating the production potential of most of the crops. A field experiment was conducted in two farmer fields during Pishanam (Oct-Feb) and late Pishanam (Nov–Mar) season of 2017-2018 respectively, in the high rainfall zone to study the effect of different source and levels of lime on yield and nutrient uptake of rice. Liming materials viz., dolomite and calcite were tried at different levels along with RDF+ZnSO4. The experiment was conducted in RBD. The results of the experiment revealed that significantly higher grain (7.09 and 7.40 t ha-1) and straw (10.3 and 10.5 t ha-1) yield of rice were recorded with the application of dolomite @ 0.75 LR (T7) and @ 0.50 LR (T5) respectively in the strongly and moderately acidic soils. Similarly, higher nutrient uptake was recorded in treatment T7 and T5 respectively both seasons as compared to other treatments.