Please use this identifier to cite or link to this item: http://krishikosh.egranth.ac.in/handle/1/5810041743
Authors: PATEL, NAROTTAMBHAI M.
Advisor: SHAH, P. M.
Title: EVALUATION OF DIFFERENT HERBICIDES FOR WEED CONTROL IN POTATO (Solanum tuberosum L.) cv. KUFRI BADSHAH UNDER MIDDLE GUJARAT CONDITION
Publisher: AAU, Anand
Language: en
Type: Thesis
Agrotags: HORTICULTURE
A STUDY
Keywords: HERBICIDES, WEED CONTROL, POTATO, Solanum tuberosum L., KUFRI BADSHAH, GUJARAT
Abstract: A field investigation was carried out during rabi season of 1990-91 on loamy sand soil of Horticultural Research Farm, Gujarat Agricultural University, Anand Campus, Anand t o evaluate the effect of herbicides for weed control in potato (cv. K. Badshah). The experiment comprised of fifteen weed control treatments viz., pre-plant soil incorporation of fluchloralin (0.75 and 1.00 kg/ha), pre-emergence application of pendimethalin (0.75 and 1.00 kg/ha), alachlor (0.75 and 1.00 kg/ha), oxyfluorfen (0.1 and 0.15 kg/ha), early postemergence application of paraquat (0.75 and 1.00 kg, ha), one hand weeding at 30 DAP; 45 DAP and 60 DAP along with weed free and unweeded check were examined in Randomised block Design with three replications. All weed control treatments significantly reduced the population of weeds (monocot, dicot and total) as well as their dry weight at different crop growth period (40, 65 DAP and at harvest) as compared to unweeded check. Among different treatments, pendimethalin (1.0 and 0.75 kg/ha) and one hand weeding at 30, 45 and 60 DAP were comparable with each other but superior over rest of the treatments. However, paraquat and hand weeding at 30 DAP were equally effective in reducing dry weight of monocot, dicot and total weeds at harvest. The effect of pendimethalin @ 0.75 and 1.00 kg/ha was found consistent throughout the crop growth period in respect to suppression of weeds and their dry weight. The weeds from unweeded check removed maximum amount of nutrients (NPK) during the entire crop season as against minimum loss of NPK by weeds from pendimethalin @ 1.00 kg/ha. The highest amount of nutrients were removed by weeds from oxyfluorfen © 0.1 kg/ha. Tnough pendimethalin 1.00 kg/ha was at par with one hand weeding at 30 DAP, paraquat 0.75 kg/ha and pendimethalin 0.75 kg/ha produced highest tuber yield (353.76 q/ha). on an average weed free , pendimethalin 1.00 and 0.75 kg/ha, paraquat 0.75 kg/ha and one hand weeding at 30 DAP increased the tuber yield to the tune of 50.4, 47.67, 34.78 , 37.06 and 39.14 per cent respectively over unweeded control. Significant increase in number of tubers/plant, plant height, stems/hill and effective plant stand contributed to maximum tuber yield under pendimethalin. None of the herbicides found toxic to potato crop. The residual effect of herbicides was not seed on the succeeding crops of bajra and mung. From weed control point of view, alachlor was not found better than pendimethalin, but obtained highest net ICBR, due to its lower price, because of better control of weeds pendimethalin @ 1.00 kg/ha secured highest CBR (1:3.09) and net profit (Rs. 41875/ha) from potato.
Subject: Horticulture
Theme: EVALUATION OF DIFFERENT HERBICIDES FOR WEED CONTROL IN POTATO
Research Problem: EVALUATION OF DIFFERENT HERBICIDES FOR WEED CONTROL IN POTATO (Solanum tuberosum L.) cv. KUFRI BADSHAH UNDER MIDDLE GUJARAT CONDITION
These Type: M.Sc
Issue Date: 1991
Appears in Collections:Theses

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