Direct Broadcast Sowing of Rice with a Fertilizer Spreader in Dried Paddy Fields (Part 1)

——Evaluation of the Use of a Fertilizer Spreader for Direct Sowing and the Optimum Combination of Tillage and Compaction——

Abstract

To assess the utility of the direct broadcast sowing with a fertilizer spreader of rice in dried paddy fields, we determined the extent of the damage to rice seeds discharged through the spreading section, the accuracy of the application rate, and the distribution of rice seeds in the field. The extent of the damage to rice seeds was small. The accuracy of the application rate was improved at a width of 8 m. The quantity of rice seeds in the field increased with increases in the traveling speed of the spreader, but it was not notably larger than that observed at the set application rate. The combination of tillage and compaction was evaluated from the point of view of establishment.