EFFECTS OF WEEDING AND PLANT POPULATION DENSITY ON CHICKPEA WEED DYNAMICS IN IRRIGATED AND RAINFED CONDITIONS OF KHORASAN

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VESAL S.R.; BAGHERI A.A.R.; NEZAMI AHMAD

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Journal: Iranian Journal of Field Crops Research Year:2004 | Volume:1 | Issue:1 Page(s): 61-69

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Title

EFFECTS OF WEEDING AND PLANT POPULATION DENSITY ON CHICKPEA WEED DYNAMICS IN IRRIGATED AND RAINFED CONDITIONS OF KHORASAN

Author(s)

VESAL S.R. | BAGHERI A.A.R. | NEZAMI AHMAD | Issue Writer Certificate

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Abstract

Although weeds affect the growth and yield of crops but no information is available about the situation of weeds in chickpea growing areas of Khorasan. This study was conducted to examine the effects of hand hoeing and plant population density (PPD) on weed dynamics of chickpea in irrigated (I) and rainfed (RF) conditions of these areas. Treatment comprised five weeding levels (non weeding, hand hoeing after 3,5 and 8 weeks after chickpea emergence and hand hoeing during whole growing season) and three PPD (20, 40 and 60 plant. m-2 in I and 20, 30 and 40 plant.m-2 in RF). The experiments were designed in a randomised complete block as a factorial experiment during 1996's growing season in two areas separately (I experiment in Mashhad and RF experiment in Sisab Bojnord). Population of Chenopodium album, Solanum nigrum, S. luteum and Amaranthus retroflexus in I conditions and Turgenia latifolia and Prosopis farcta in RF experiment were higher than other weeds. In both areas weeding 8 weeks after chickpea emergence caused the increases of weeds dry matter (WDM). In I and RF conditions PPD's 40 plant.m-2 and 30 plant.-2 had higher WDM than other treatments, respectively. The interaction between hand hoeing and PPD for WDM was statistically significant. In I experiment non weeding in 40 plant.m-2 and weeding during whole growing season in PPD 60 plant.m-2 and had the highest (236.1 gr.m-2) and lowest (8.5 gr.m-2 ) WDM, respectively. In RF conditions non-weeding in PPD 30 plant.m-2 had the highest WDM (28.25 gr.m-2) whereas in weeding during whole growing season in PPD 20 plant.m-2 WDM was 10% as compared with previous treatment (2.84 gr.m-2). As a whole, better weed control in I and RF conditions achieved in weeding 5 and 3 weeks after chickpea emergence.

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بررسی اثرات وجین علفهای هرز و تراکم بر عملکرد و اجزا نخود (.Cicer arietinum L)

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APA: Copy

VESAL, S.R., BAGHERI, A.A.R., & NEZAMI, AHMAD . (2004). EFFECTS OF WEEDING AND PLANT POPULATION DENSITY ON CHICKPEA WEED DYNAMICS IN IRRIGATED AND RAINFED CONDITIONS OF KHORASAN. IRANIAN JOURNAL OF FIELD CROPS RESEARCH, 1(1), 61-69. SID. https://sid.ir/paper/119239/en

Vancouver: Copy

VESAL S.R., BAGHERI A.A.R., NEZAMI AHMAD . EFFECTS OF WEEDING AND PLANT POPULATION DENSITY ON CHICKPEA WEED DYNAMICS IN IRRIGATED AND RAINFED CONDITIONS OF KHORASAN. IRANIAN JOURNAL OF FIELD CROPS RESEARCH[Internet]. 2004;1(1):61-69. Available from: https://sid.ir/paper/119239/en

IEEE: Copy

S.R. VESAL, A.A.R. BAGHERI, and AHMAD NEZAMI, “EFFECTS OF WEEDING AND PLANT POPULATION DENSITY ON CHICKPEA WEED DYNAMICS IN IRRIGATED AND RAINFED CONDITIONS OF KHORASAN,” IRANIAN JOURNAL OF FIELD CROPS RESEARCH, vol. 1, no. 1, pp. 61–69, 2004, [Online]. Available: https://sid.ir/paper/119239/en

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