Development of Fertilizer Applicator in Wheat Crop

India is second largest producer of wheat in the world. Fertilizer are very costly and there precision application is required to sustain the health of soil and increased the use efficiency by crops. Design and development of tractor operated variable depth fertilizer applicator was developed and evaluated for wheat crop planted on bed cultivation system. Because ammonia did not evaporated to the atmosphere due to placing of fertilizer at a depth of 100 mm below the soil surface. The saving of fertilizer placed in the soil by tractor operated fertilizer applicator was 33.33 and 16.6 kg/ha as compared to broadcast and foliar application methods. The fertilizer use efficiency has increased significantly as the 46% N/ha was use by the plant as compared to 61.33 kg/ha and 38.33kg/ha in broadcast and foliar methods respectively.