Vetiver grass as erosion and land productivity control
1996
Sudradjat, R. | Donie, Syahrul(Watershed Management Technology Center (Indoesia))
Use of vetiver as erosion and land productivity control was investigated in Boyolali (Central Java) from 1990 to 1992. The method used were: 1. Grass barrier with Vetiveria zizanioides 2. Grass barrier with Setaria sphacelata 3. Bench terrace with Setaria sphacelata Control: Bench terrace without grass barrier. Those treatments used as a strip cropping along border line of 1500 square m plot area for each treatment. Corn, Sesamum indicum and bean were planted for two harvesting periods in the plot area. The result showed that the use of vetiver as a grass barrier could reduce erosion of 72.7 percent and stream coefficient of 12.5 percent compared to control. Moreover, corn production was increased by 104.7 percent at harvesting period 1 and 122 percent at harvesting period II, as for Sesamur indicum, it increased by 89.3 percent and bean production by 142.9 percent. Among the three grass barriers, only vetiver could produce brangkasan mucuna and give the highest grass height.
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