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为了探明不同耕层构造对玉米生长发育及产量的影响,通过人工模拟方式构造不同类型耕层。研究结果表明:留茬苗紧行松叶面积比垄作苗紧行松提高4.19%;苗紧行松耕作提高玉米干物质积累速率,相比之下平均每天每平方米干物质量积累幅度为0.69~3.96 g;苗紧行松分别比苗紧行紧和苗松行松耕作产量高20.06%和4.08%,苗紧行松与苗松行松产量差异达显著水平(P<0.05),而与苗紧行紧差异未达显著水平(P>0.05)。
In order to find out the effect of different tillage structures on the growth and yield of maize, different types of tillage layers were constructed by artificial simulation. The results showed that the area of tight cedar leaves of the stubble seedlings increased by 4.19% compared with that of the ridge seedlings. The tillage compaction increased the dry matter accumulation rate of maize, compared with the average daily dry matter accumulation of 0.69 ~ 3.96 g respectively. The yield of Miao tight pine was 20.06% and 4.08% higher than that of Miao tight and Miao loose pine respectively. Tight differences did not reach significant level (P> 0.05).