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麦烟共生期间，套烟行光照强度随麦烟距离的增大、离地高度的增加和时间越近12．点而增加。东西行向能明显地提高套烟行早、晚的光照强度。南北行向小麦株高75cm左右，麦烟距离为30cm左右是光照变化的转折点。选用矮秆小麦品种或提高烟垄高度能使烟行光照显著提高。
During the symbiosis of wheat and tobacco, the light intensity of the set of tobacco smoke increased with the distance of wheat and tobacco, and the increase and the time of the height of the tobacco were closer to 12. Increase point. Things can significantly improve the line of cigarettes set early and late light intensity. North and south lines to wheat plant height about 75cm, wheat smoke distance of about 30cm is a turning point in light changes. The selection of dwarf wheat varieties or to increase the height of the tobacco ridge can make tobacco lighting significantly increased.