Effect of weed control method on yield ubi Nagara (Ipomoea batatas) at medium deep swampland in South Kalimantan [Indonesia]
1995
Sumanto | Khairuddin
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-D IPE, (e) herbicide Metolachlor, (f) herbicide Piperophos 2,4-D IPE + weeding 1x at 30 days after planted, (g) herbicide Piperophos 2,4-D IPE + 2 t mulch/ha, (h) herbicide Metolachlor + weeding 1x at 30 days after planted and (j) herbicide Metolachor + 2,5 t mulch/ha + weeding 1x at 30 days after planted. The experiment use a RCBD, 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 26.5 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 t/ha
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