摘要
在干旱半干旱地区，为了充分利用有限的降水资源，促进农作物的生长，采用聚丙烯酰胺（PAM）进行了减少玉米田土壤表面的径流，增加土壤人渗的试验。试验区位于内蒙古自治区清水河县境内，在试验区挑选一块坡面相对比较平整坡度在5％～7％的连片玉米田，分别在玉米田的土壤表面采用4个不同的处理，即PAM覆盖率80％、60％、40％和对照，试验采用3个重复。通过小区试验，测定降雨在土壤表面形成径流量、土壤的含水量的变化情况和玉米生长发育的状况，以及玉米的全干物质产量。结果表明，PAM能够很好地增加土壤的有效降雨量并促进玉米的生长。
In arid and semiarid climatic areas, water shortage is a dominant factor for low harvest in rainfed farming. Application of polyacrylamide（PAM） on the soil surface can significantly increase water infiltration of soils. A field experiment was conducted at Qingshuihe, near Huhhot, Inner Mongolia. The experimental site, with slope of 5% to 7%, consisted of 12 nearby rectangle plots, of about 10 by 16 m. The experiments applied four soil surface treatments （one control and three PAM coverage rates： 80%, 60%, 40%）. The experiments showed that PAM application reduced runoff and increased water penetration into soil significantly and corns planting in the soils treated with PAM were significantly taller and more vigorous.
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2006年第4期216-219,共4页
Transactions of the Chinese Society of Agricultural Engineering
基金
(内蒙)山丘区雨水储蓄农业高效利用产业化示范工程
中国科学院"百人计划"
关键词
聚丙烯酰胺
入渗
径流
土壤水分
玉米生长
polyacrylamide
infiltration
runoff
soil moisture content, corn
rowth
