Vol. 11, Issue 12 (2022)

Enormous use of agrochemicals since green revolution had led to harmful effect on soil and environment as the whole. Considering this fact, currently agriculture is in need of sustainable innovations for improving production and productivity without disturbing environment. Keeping this view, the present investigation was planned to study the bioefficacy of different foliar applied biostimulants on nutrient uptake and yield in rice crop and to study economics of different treatments in rice crop under lateritic soils of Konkan region. The experiment was carried out at instructional farm of Department of Agronomy, College of Agriculture, Dapoli, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Dist. Ratnagiri, MH, India in kharif, 2021. Effect of foliar application different biostimulants namely SiLife, humic acid, triacontanol and vermiwash along with no foliar application as control treatment was studied on nutrient uptake and yield of rice. Positive effect and significant variations were observed among different biostimulants for nutrient uptake and yield. Biostimulant SiLife @ 0.4% (T₃) showed significantly higher uptake of nutrients and yield as compared to other treatments. It showed 22.96% and 18.91% higher grain and straw yield, respectively over control. While, treatment T₄ (humic acid @ 1%) showed higher monetary returns (₹ 15202.48 ha^-1) and B: C ratio (1.16) over all the other treatments.