摘要
概述世界木薯地水土流失的严重性和水土保持研究与现状;总结1989年以来,中国热带农业科学院与国际热带农业中心的合作研究,以及农民参与木薯地水土保持的研究和推广情况。指出,在木薯地采用免耕法、等高起畦、密植、间种、施肥和沿等高线建植生物绿蓠等措施,可降低水土流失,增产增收效果良好,且首选措施是建植香根草绿蓠。在1997～2001年的5 a间,香根草绿蓠平均比对照减少流失干土68.3%,平均比对照增产鲜薯2.7%。
The seriousness of soil and water loss in cassava field all over the world was described. The international cooperation between CATAS and CIAT since 1989 about soil and water conservation in cassava field found that zero-tillage, contour ridging, close planting, fertilization, intercropping, hedgerowing of grass, etc. are very effective both for reducing erosion and increasing yield. Trials on soil and water conservation in cassava field in 1997～2001 suggested that the hedgerows of vetiver grass (Vetiveria zizanioides (Linn.) Nash) gave the best effectiveness for reducing soil erosion(dry soil loss decreased by 68.3%) and increasing cassava yield(cassava yield increased by 2.7%).
出处
《热带农业科学》
2004年第1期32-38,共7页
Chinese Journal of Tropical Agriculture
关键词
中国
木薯地
水土保持
技术推广
cassava
soil and water conservation
vertiver grass
Vetiveria zizanioides
