Abstract:

In order to improve the utilization efficiency of farmland and increase the wheat yield per unit area, wheat sowing production experiment of the ‘wide sowing in narrow row’ was carried out through the transformation of the ‘narrow sowing in narrow rows’ wheat sower, and a designed experiment was conducted for checking the wheat yield change in 15 cm narrow row with sowing belt increased. The results showed that the ‘narrow sowing in narrow rows’ wheat sower’s opener could be transformed into the ‘wide sowing in narrow row’ sower’s opener, and the sowing belt increased from 2.6, 2.9 cm to 7.6 cm, and the area of the sowing belt increased by 176% on average. Within a limited row, the wheat yield per unit area increased with the increase of sowing belt width; the ‘wide sowing in narrow row’ yield increased by 11.3% to 17.3% than the ‘narrow sowing in narrow rows’. The direct cause of the yield increase per unit area of ‘wide sowing in narrow row’ is that the area per plant, the number and proportion of large plants increased, the number and proportion of small plants decreased, and the yield of small plants increased. ‘Narrow sowing in narrow row’ wheat sower needs to be reformed to improve the utilization efficiency of wheat land and develop efficient wheat farming.

Key words: wheat, seeder, furrow opener, sowing belt, narrow row, wide sowing