大洼公社大兴二队,去年在52亩薄地上对垄种植烤烟,获得了显著增产。平均亩产477斤,比大垄单行增产29％。主要措施是: 1.适当增加株数,扩大小行距。随着种植密度增加,光照相对减弱,通风变差。因此,采用大行距2.8尺,小行距2尺,株距1.1尺,每亩保苗2,200株。比上年的株行距3.2尺×1.1尺。每亩保苗1,700株增加30％。采用对垄种植,窄行增加密度,宽行利于通风透光,从而有效地利用了光能和营养面积,使群体和个体得到适 Dawa Habitat Dawa two teams last year in 52 acres of thin land on the ridge planted tobacco, access to a significant increase in production. The average yield of 477 kg, an increase of more than 29% of the single ridge. The main measures are: 1. Appropriate to increase the number of plants, to expand the small row. With the increase of planting density, the light intensity is relatively weakened and the ventilation is poor. Therefore, the use of large row spacing of 2.8 feet, 2 feet row spacing, spacing 1.1 feet per mu seedlings 2,200. Than the previous year spacing 3.2 feet × 1.1 feet. Seedlings per acre 1,700 increased by 30%. The use of the ridge planting, narrow row to increase the density, wide lines conducive to ventilation and light, which effectively use the light energy and nutrient area, so that groups and individuals get appropriate