摘要
对贵阳市烟田土壤水分的动态变化规律进行了初步研究，结果表明，该地区烤烟生根期土壤含水量过高，旺长期和成熟前期出现阶段性缺水，且较为严重，成熟后期相对较为适宜；垂直梯度变化表现为：0～20cm土层变化较为活跃，20-40cm次之，40～60cm变化较为稳定；土壤水分含量随坡度增加而递减，因此，应采取等高种植或结合其它农艺措施平整土地。
The dynamic characteristics of soil moisture in tobacco fields of Guiyang were studied. The results show that soil moisture contents in tobacco fields of this area is too high at the rooting stage of tobacco, is lower at the growth vigorous and early ripening stage sometimes and is suitable at the late ripening stage. The changes of soil moisture within 0 to 20 cm depth layers was the most activity, that of 20 to 40 cm depth layers was followed and 40 to 60 cm depth layers was stable. With the increase of the field＇ slope, soil moisture contents reduced, it should take measures such as cultivation in equal line or in combination with other agricultural measures.
出处
《贵州农业科学》
CAS
2006年第4期44-46,共3页
Guizhou Agricultural Sciences
关键词
烤烟
土壤水分
动态变化
flue＆cured tobacco
soil moisture
dynamic change
