Sowing speed can affect distribution and yield of soybean

Abstract

The sowing speed or planting speed is referred to tractor and seeder displacement speed during the sowing. It plays a crucial role intruding distribution of plants, and consecuently yield of soybean grain. Therefore, this paper endeavors to corroborate the repercussions of the sowing speeds on the plants distribuition and grain yield. The experimental design consisted of a randomized complete block design with five treatments and four replications, with the treatments comprising of five sowing speeds (2.0, 3.1, 6.1, 7.4, 9.0 km h-1). The following parameters were evaluated:(i) distance between plants, (ii) double spacing, acceptable spacing and failing spacing, (iii) number and dry mass of nodules, (iv) plant population, (v) shoot dry mass, (vi) mass of one thousand grains, and (vii) grain yield. With the increase in the sowing speed, the equidistance of plants in the row was changed, which in turn decreased the soybean yield. The results showed that seeding speeds close to 4.0 km h-1 provided better uniformity and distribution of plants in the row. The results also unveiled that sowing speed mainly influence the plants distribution, having greater influence on the productivity components, thereby affecting the overall soybean grain yield