THE EFFECT OF CROP ROTATION ON COMPOSITION, DENSITY AND DISTRIBUTION OF WEED SEEDLINGS

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RASHED MOHASEL M.H.; SIAHMARGOUEI A.; NASIRI MAHALATI MAHDI; KHARAGHANI F.; ASHRAFI A.

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Journal: Agricultural Sciences and Technology Year:2005 | Volume:19 | Issue:2 Page(s): 137-146

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Title

THE EFFECT OF CROP ROTATION ON COMPOSITION, DENSITY AND DISTRIBUTION OF WEED SEEDLINGS

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Keywords

WEEDQ3

PATCHINESS DISTRIBUTIONQ4

SITE SPECIFIC MANAGEMENTQ4

Abstract

To study the effect of crop rotation on composition, density and distribution of WEED population, a field experiment was conducted at the collage Agricultural, of Ferdowsi University of Mashhad Experimental Station during spring 2003. Different rotations in three experimental parts of the field were: 1) corn silage-barley silage, 2) chickpea-barley silage and 3) cumin-barley silage. WEED species identification and WEED density were measured in 0.5m ×0.5m quadrates. Samples were taken based on systematic methods by using grids of 12.5m ×12.5m, 11.5m ×11.5m and 5m ×10m respectively, depending on the shape of each part. Sampling was done in two stages: a) before post emergence herbicide treatment and b) three weeks after application of herbicide. WEED density in barley silage was very low; however, there were highest and lowest densities in cumin-barley silage and corn silage-barley silage rotation, respectively. On the other hand, WEEDs in field had patchy distribution. The patchiness is the basic character for site-specific WEED management. The results indicated that WEED density and composition is influenced by crop species and management practices. Therefore, with proper crop rotation, and suitable WEED management, we can overcome the WEED problem by using minimum amount of herbicide.

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مطالعه تغییرات مکانی شوری خاک در منطقه رامهرمز (خوزستان) با استفاده از نظریه ژئواستاتیستیک 1- کریجینگ

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APA: Copy

RASHED MOHASEL, M.H., SIAHMARGOUEI, A., NASIRI MAHALATI, MAHDI, KHARAGHANI, F., & ASHRAFI, A.. (2005). THE EFFECT OF CROP ROTATION ON COMPOSITION, DENSITY AND DISTRIBUTION OF WEED SEEDLINGS. AGRICULTURAL SCIENCES AND TECHNOLOGY, 19(2), 137-146. SID. https://sid.ir/paper/22450/en

Vancouver: Copy

RASHED MOHASEL M.H., SIAHMARGOUEI A., NASIRI MAHALATI MAHDI, KHARAGHANI F., ASHRAFI A.. THE EFFECT OF CROP ROTATION ON COMPOSITION, DENSITY AND DISTRIBUTION OF WEED SEEDLINGS. AGRICULTURAL SCIENCES AND TECHNOLOGY[Internet]. 2005;19(2):137-146. Available from: https://sid.ir/paper/22450/en

IEEE: Copy

M.H. RASHED MOHASEL, A. SIAHMARGOUEI, MAHDI NASIRI MAHALATI, F. KHARAGHANI, and A. ASHRAFI, “THE EFFECT OF CROP ROTATION ON COMPOSITION, DENSITY AND DISTRIBUTION OF WEED SEEDLINGS,” AGRICULTURAL SCIENCES AND TECHNOLOGY, vol. 19, no. 2, pp. 137–146, 2005, [Online]. Available: https://sid.ir/paper/22450/en

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