THE EFFECT OF DIFFERENT SUBSURFACE DRAINAGE SYSTEMS ON IMPROVEMENT OF WATER FLOW IN PADDY FIELDS

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AGHAJANI MAZANDARANI GH.

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Journal: Journal of Water and Soil Year:2017 | Volume:30 | Issue:6 Page(s): 1848-1859

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Title

THE EFFECT OF DIFFERENT SUBSURFACE DRAINAGE SYSTEMS ON IMPROVEMENT OF WATER FLOW IN PADDY FIELDS

Author(s)

AGHAJANI MAZANDARANI GH. | Issue Writer Certificate

Keywords

CANOLA YIELDQ1

DRAIN DEPTHQ1

DRAIN DISCHARGEQ2

DRAIN SPACINGQ1

WATER TABLEQ1

Abstract

Introduction: Better use of water and soil resources in paddy fields, increase in rice production and farmer's income, installation of subsurface drainage system is necessary. The main goalof these systems, are aeration conditions improvement prevention of water logging, yield increase, land use increase and multiuse of the land. In different countries, installation of subsurface drainage cause yield increase and working condition on the land, but no research has been conducted in different depths and spacing. On the other hand, spacing and depth are the most important parameters in the installation of drainage systems, have a direct effect on incoming water into the drains. The aim of this research, is an investigation of the effect of subsurface drainage with different depths and spacing on discharge rate variation and WATER TABLE fall, in order to analyze the improvement of water flow movement in the soil. Also, study the effect of different drainage systems on the increase of the CANOLA YIELD as the second cultivation in these treatments have been compared.Materials and Methods: To measure hydraulic conductivity in different depths, the auger holes have been dug (excavated). The saturated hydraulic conductivity in these holes was determined using Ernst method (1950) before installation of drainage systems. In the drainage pilot plot of Sari Agricultural Sciences and Natural Resources University three subsurface drainage systems with mineral envelope have been installed. 1- The first one with the 0.9 m depth and 30 m spacing (D90 L30), 2- The second one with 0.65 m depth and 15 m spacing (D0.65 L15) and 3- The third one with 0.65 m depth and spacing (D0.65 L30) and one bi-level system with mineral envelope including four drains of 15 m spacing with 0.9 m and 0.65 m depths were installed alternatively. After auger hole equipment installations, in the middle spacing of two subsurface and WATER TABLE reading possible, the WATER TABLE fluctuation and drain outlet discharge rate from farm drains during canola growing season were measured on a daily basis. Also, CANOLA YIELD during 4 years after drainage systems were monitored.

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APA: Copy

AGHAJANI MAZANDARANI, GH.. (2017). THE EFFECT OF DIFFERENT SUBSURFACE DRAINAGE SYSTEMS ON IMPROVEMENT OF WATER FLOW IN PADDY FIELDS. JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY), 30(6 ), 1848-1859. SID. https://sid.ir/paper/141814/en

Vancouver: Copy

AGHAJANI MAZANDARANI GH.. THE EFFECT OF DIFFERENT SUBSURFACE DRAINAGE SYSTEMS ON IMPROVEMENT OF WATER FLOW IN PADDY FIELDS. JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY)[Internet]. 2017;30(6 ):1848-1859. Available from: https://sid.ir/paper/141814/en

IEEE: Copy

GH. AGHAJANI MAZANDARANI, “THE EFFECT OF DIFFERENT SUBSURFACE DRAINAGE SYSTEMS ON IMPROVEMENT OF WATER FLOW IN PADDY FIELDS,” JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY), vol. 30, no. 6 , pp. 1848–1859, 2017, [Online]. Available: https://sid.ir/paper/141814/en

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