Effect of direct seeded rice based intercropping system and source of organic inputs on nutrient uptake of crops and soil properties under rainfed condition

A field experiment entitled, “Effect of direct seeded rice based intercropping system and source of organic inputs on nutrient uptake of crops and soil properties under rainfed condition” was carried out during two consecutive kharif seasons of 2023 and 2024 on Clayey soil of Regional Rice Research Station, Navsari Agricultural University, Vyara, Dist. Tapi (Gujarat). The experiment was laid out in a randomized block design with factorial concept having three replications and fourteen treatment combinations consisting of two sources of organic inputs and seven intercropping systems. On pooled basis, the source of organic inputs fails to exert their significant effect on NPK content of grain as well as the straw of rice. Similarly, it also fails to exert their significant effect on NPK uptake of grain, straw, total uptake by biomass of rice and total uptake by intercropping system, except for the total N and K uptake in rice based intercropping system, where F1: 100% RDN through FYM recorded significantly higher value. While assessing the effect of intercropping system, Nutrient content in grain and straw of rice was not significantly influenced by intercropping system. NPK uptake by grain, straw and total uptake by rice were significantly higher under sole rice, except the N uptake in rice grain. Total N and P uptake by intercropping system were significantly higher under sole soybean, while total K uptake under rice + groundnut intercropping system. Post-harvest soil fertility parameters remained unaffected due to the source of organic inputs and intercropping system.