PENGARUH CARA PENGENDALIAN GULMA TERHADAP HASIL UBI NAGARA (Ipomoea batatas) DI LAHAN RAWA LEBAK TEN GAHAN KALlMANTANSELATAN
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Date
1995-04
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Balittra
Abstract
Effect of weed control method on yield of Ubi Nagara (Ipomoea batatas) at medium
deep swampland, in South Kalimantan. The aim of the experiment was to study the
effect of weed control methods on yield of ubi Nagara in medium deep swampland
in
Habirau, Hulu Sungai Selatan on the dry season of 1994. Treatments evaluated were;
(a) weeding 1x at 30 days after planted, (b) weeding 2x at 30 and 60 days after planted,
(c) 2 t mulch/ha, (d) herbicide Piperophos 2,4-0 IPE, (e) herbicide Metolachlor,
(f)
herbicide Piperophos 2,4-0 IPE + weeding 1x at 30 days after planted, (g) herbicide
Piperophos 2,4-0 IPE + 2 t mulch/ha, (h) herbicide Metolachlor + weeding 1x at 30 days
after planted, and U) herbicide Metolachlor + 2,5 t mulch/ha + weeding 1x at 30 days
after planted. The experiment use a RCBO, with three replications. The results showed
that weed control method only significant effect to weight per tuber and not significantly
effect to cloth weed grades, weed dry weight and yield. Tuber yield of 1.000 hills give
highest at 26,S t/ha which weed controled by weeding 2x at 30 and 60 days after planted.
Tuber lowest yield using weeding method 1x at 30 days after planted at 18,42 tlha.
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PENGARUH CARA PENGENDALIAN GULMA TERHADAP HASIL UBI NAGARA (Ipomoea batatas) DI LAHAN RAWA LEBAK TENGAHAN KALlMANTAN SELATAN