|Table of Contents|

Design and Experiment on Twin-row Soybean No-till Planter(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2015年06期
Page:
1047-1052
Research Field:
Publishing date:

Info

Title:
Design and Experiment on Twin-row Soybean No-till Planter
Author(s):
LYU Bin;  YANG Yue-qian;  LIU Hong-jun;  CAO Xiu-zhen;  ZHOU Yong; ZHAO Shu-hong
College of Engineering, Northeast Agricultural University, Harbin 150030, China
Keywords:
Agricultural machinery;  Planter;  Two-disc opener;  Deep side fertilizing;  Twin-row
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2015.06.1047
Abstract:
Abstract: In no-till planting conditions, planter is difficult to solve the matter of deep fertilization，easy to drag and heap， as well as plug.The twin-row soybean no-till planter is designed to solve these problems. This planter included main parts of frame, profiling mechanism, fertilizer box, seed box, depth wheel, fertilization shovel, disk opener, covering disc and press wheel. Two drive wheels were symmetrically installed on both sides of the main beam. Each row of the drive wheel drove its fertilizer feeder and seed metering device.Depth wheel, acute angle fertilization shovel and double disc opener were installed in monomer beam. And depth wheel, acute angle fertilization shovel were kept in a straight line, double disc opener symmetric were installed on both sides.In seeding operation, after depth wheel flatten ridge and limit the fertilizing and seeding depth， fertilization shovel ditched furrow fertilization. After soil dropped in the furrow, the double disc opener furrowed seeding again so as to realize twin-row and deep side fertilizing. Finally covering disc and press wheel made the soil repression.Depth wheel was made by tablet depth wheel which had the better performance in limiting depth and flatting ridge, and its diameter was 300 mm,its width was 200 mm.The part of the fertilization shovel buried soil was designed to be acute angle circular arc type: the penetration angle was 40°, the clearance angle of penetration was 10° and the radius of curvature was 310 mm. Double disc opener was made up of disc opener and fixed mount, besides, each disc had an angle with the advancing direction. As the machine forwards one side of the disc pushed soil. The disc rotated with the power of the soil resistance which made the soil out of the original position, thus a furrow formed.Seeding pipe was installed inside each flat disc so as to realize double row planting with a 130 mm distance between the rows. Its cutting edge angle was 7°, cutting edge inclination was 0° and diameter was 320 mm.The results of the filed tests showed that there was no blockage in the seeding process.It was strong in ditching buried performance and the amount back to soil was good.The qualification rate of sowing depth was more than 90% with the coefficient of variation was less than 27.9%. Seed fertilizer vertical distance qualification rate was more than 90% with the coefficient of variation was less than 13.6%. Seed fertilizer horizontal distance qualification rate was greater than 85%, the coefficient of variation was less than 23.8%. The sunning seed count was 0.1 grain.m-1，average speed of crop emergence was 1.02 plants m-1.d-1and the passing efficiency was 100%. This machine meets agricultural requirements of soybean no-till planting in Heilongjiang region.

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Last Update: 2016-01-07