EFFECT OF PLOWSHARE TYPE ON MOLDBOARD PLOW PERFORMANCE UNDER DIFFERENT MOISTURE CONTENTS AND PLOWING DEPTHS

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HEMAT ABAS; AHMADI IMAN; MASOUMI A.

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Journal: IRANIAN JOURNAL OF AGRICULTURAL SCIENCES (JOURNAL OF AGRICULTURE) Year:2008 | Volume:39 | Issue:1 Page(s): 87-97

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Information Journal Paper

Title

EFFECT OF PLOWSHARE TYPE ON MOLDBOARD PLOW PERFORMANCE UNDER DIFFERENT MOISTURE CONTENTS AND PLOWING DEPTHS

Author(s)

HEMAT ABAS | AHMADI IMAN | MASOUMI A. | Issue Writer Certificate

Keywords

TILLAGEQ2

MOLDBOARD PLOWQ3

DRAFTQ3

SPECIFIC DRAFTQ2

DRAWBAR POWERQ4

DEEP-SUCK SHAREQ3

SERRATED SHAREQ3

TRAPEZIUM-SHAPED SHAREQ3

Abstract

The use of MOLDBOARD PLOW in our agricultural system has been encountered with two problems: I) the possibility of plow pan formation which could have negative effects on vertical water movement into the soil and 2) low penetration rate. It was hypothesized that by cutting part of the surface (making serrations on the plowshare) and equipping the plowshare with a separate SharePoint; it would lead to solving the two aforementioned problems. The results of the first part of the research, related to the measurements of water infiltration, showed that serrations on the plowshare could prevent plow pan formation and significantly increase the infiltration of water. In this paper, the effects of serrations on the plowshare and equipping the plowshare with a separate SharePoint on the plow as well as tractor performance are reported. Hence, the effects of five plowshare types (deep-suck share (control), TRAPEZIUM-SHAPED SHARE with/without SharePoint, and SERRATED SHARE with/without SharePoint) under two soil moisture contents (0.85 and 0.55 plastic limit (PL)), and two plowing depths (15 and 20 cm) on DRAFT, specific DRAFT and DRAWBAR POWER requirement of the MOLDBOARD PLOW as well as the distance traveled by the plow to reach a stable depth, and on the slip of drive wheels, travel speed and tractive efficiency of the tractor in a silty clay loam soil (using a split-split plot arrangement in a randomized complete block design with 3 replications) were assessed. When soil moisture content was reduced from optimum value for plowing(0.85PL) to dry condition (0.55 PL); the slip of the drive wheels more than doubled, while only the DRAFT of plow with DEEP-SUCK SHARE equipped with SharePoint significantly increased (by 28%). Increasing the plowing depth by 33%, DRAFT, DRAWBAR POWER and slip significantly increased by 33, 48 and 23%, respectively; whereas the specific DRAFT, with an average of 4.6 N cm-2, did not significantly differ. Plowing under dry soil conditions and equipping the share with SharePoint did not significantly reduce the distance traveled by the plow to reach the stable depth, while plowing under optimum moisture content, and equipping the SERRATED SHARE with SharePoint reduced the distance significantly. Results showed that serrations on the plowshare did not significantly increase DRAFT and DRAWBAR POWER requirement of the MOLDBOARD PLOW as compared with other plowshare types.

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APA: Copy

HEMAT, ABAS, AHMADI, IMAN, & MASOUMI, A.. (2008). EFFECT OF PLOWSHARE TYPE ON MOLDBOARD PLOW PERFORMANCE UNDER DIFFERENT MOISTURE CONTENTS AND PLOWING DEPTHS. IRANIAN JOURNAL OF AGRICULTURAL SCIENCES (JOURNAL OF AGRICULTURE), 39(1), 87-97. SID. https://sid.ir/paper/8580/en

Vancouver: Copy

HEMAT ABAS, AHMADI IMAN, MASOUMI A.. EFFECT OF PLOWSHARE TYPE ON MOLDBOARD PLOW PERFORMANCE UNDER DIFFERENT MOISTURE CONTENTS AND PLOWING DEPTHS. IRANIAN JOURNAL OF AGRICULTURAL SCIENCES (JOURNAL OF AGRICULTURE)[Internet]. 2008;39(1):87-97. Available from: https://sid.ir/paper/8580/en

IEEE: Copy

ABAS HEMAT, IMAN AHMADI, and A. MASOUMI, “EFFECT OF PLOWSHARE TYPE ON MOLDBOARD PLOW PERFORMANCE UNDER DIFFERENT MOISTURE CONTENTS AND PLOWING DEPTHS,” IRANIAN JOURNAL OF AGRICULTURAL SCIENCES (JOURNAL OF AGRICULTURE), vol. 39, no. 1, pp. 87–97, 2008, [Online]. Available: https://sid.ir/paper/8580/en

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