PENGARUH TEKNIK KONSERVASI SECARA VEGETATIF TERHADAP EROSI TANAH PADA BUDIDAYA KENTANG (Solanum tuberosum) DAN KUBIS (Brassica oleracea) DI DESA KASIMPAR, DAS SERAYU HULU
Kasimpar village is one of the villages in the upstream of Serayu Watershed that have high erosion due to the exploitation of agricultural land use. Soil conservation techniques necessary to reduce erosion and its impacts. This study aims to (1) analyze the best...
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| 格式: | Theses and Dissertations NonPeerReviewed |
| 出版: |
[Yogyakarta] : Universitas Gadjah Mada
2014
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| 在線閱讀: | https://repository.ugm.ac.id/133638/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=74369 |
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| 總結: | Kasimpar village is one of the villages in the upstream of Serayu
Watershed that have high erosion due to the exploitation of agricultural land use.
Soil conservation techniques necessary to reduce erosion and its impacts. This
study aims to (1) analyze the best vegetative soil conservation technique to
decrease erosion (2) analyze the best vegetative soil conservation technique to
decrease organic Carbon loss (3) analyze the best vegetative soil conservation
technique to increase the yield of potato and cabbage .
This research was conducted during the growing season, ie from
December 2013 to March 2014. The method used to determine the amount of soil
erosion is an experimental method by making erosion plots. The number of
erosion plots is 22 plots installed on slope 45
o
and 25
o
. Each plot was treated
differently by using a combination of primary vegetation and ground cover
vegetation or organic mulch. The main vegetations used are potato and cabbage.
Ground cover plants are used in the form of sweet potato, red beans, corn stalk
mulch, and elephant grass mulch. The amount of organic Carbon loss is known
through laboratory by spectrophotometric method, while agricultural output is
calculated after harvest.
The results of this study show that the best conservation technique on
potato cultivation is using sweet potato. Erosion decreased 90,88% on slope 45
o
,
whereas on slope 25
o
it decreased 85,18%. Organic Carbon loss decreased 90,23%
on slope 45
o
, whereas on slope 25
o
it decreased 25,76%. The yield increased
150% on slope 45
o
, whereas on slope 25
o
it increased 216,67%. In other hand, the
best conservation technique on cabbage cultivation is using corn stalks mulch.
Erosion decreased 94,49% on slope 45
o
, whereas on slope 25
o
it decreased
91,46%. Organic Carbon loss decreased 88,84% on slope 45
o
, whereas on slope
25
o
it decreased 89,36%. The yield increased 21,69% on slope 45
o
, whereas on
slope 25
o
it increased 13,33%. |
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