油菜联合收获与分段收获效果比较

为了研究油菜联合收获与分段收获2种收获方式的差异,采用人工模拟联合收获和分段收获方法,对2种收获方式收获效果进行对比试验,对不同收获时间的收获经济系数、籽粒和茎秆含水率、收获损失率以及菜籽品质进行测试。同时通过2种收获机具进行田间生产试验,对2种收获方式的机具性能、经济性、适应性等方面进行全面的比较分析。结果表明：人工模拟分段收获平均损失率为3.2%,比人工模拟联合收获（平均损失率6.51%）下降50.8%,菜籽含油量和蛋白质含量没有明显差别。机械化分段收获比联合收获每公顷经济效益提高361元,腾地时间提早4.8 d,对作物适应性强,籽粒和秸秆含水率较低,利于菜籽保存和秸秆粉碎,但存在机器2次...

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Bibliographic Details
Published in农业工程学报 Vol. 30; no. 17; pp. 10 - 16
Main Author 吴崇友 肖圣元 金梅
Format Journal Article
LanguageChinese
Published 农业部南京农业机械化研究所,南京,210014%合肥市农业科学研究院,合肥,238014 2014
Subjects
农业机械
收获
比较
油菜
试验
比较
rapeseed
comparison
harvesting
agriculture machinery
试验
experiments
收获
油菜
农业机械
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Summary:为了研究油菜联合收获与分段收获2种收获方式的差异,采用人工模拟联合收获和分段收获方法,对2种收获方式收获效果进行对比试验,对不同收获时间的收获经济系数、籽粒和茎秆含水率、收获损失率以及菜籽品质进行测试。同时通过2种收获机具进行田间生产试验,对2种收获方式的机具性能、经济性、适应性等方面进行全面的比较分析。结果表明：人工模拟分段收获平均损失率为3.2%,比人工模拟联合收获（平均损失率6.51%）下降50.8%,菜籽含油量和蛋白质含量没有明显差别。机械化分段收获比联合收获每公顷经济效益提高361元,腾地时间提早4.8 d,对作物适应性强,籽粒和秸秆含水率较低,利于菜籽保存和秸秆粉碎,但存在机器2次下地作业,适应阴雨天能力差等缺点。联合收获具有便捷、高效的优点,但对作物适应性差,损失率高。通过比较分析得出2种收获方式的优缺点,为油菜收获方式的选择以及油菜机械化的发展方向提供参考依据。
Bibliography:Wu Chongyou, Xiao Shengyuan, Jin Mei （1. Nanjing Research lnstitute for Agricultural Mechanization Ministry of Agriculture, Nanjing 210014, China; 2. Hefei Academy of Agricultural Sciences, Hefei 238014, China）
11-2047/S
In order to find out the differences between two methods of rape harvest, i.e. combine harvesting and two-stage harvesting and to provide a reasoning basis for choosing mechanized harvesting method, the simulation contrast experiments of the two harvesting methods were carried out in this paper, and the economic coefficient, grain water content, stalk moisture content, loss rate and seed quality were tested at different harvesting times. Artificial simulation of combine harvesting means artificial direct harvesting （ADH）. First, the rape was cut down from a randomized plot of 5 square meters in the field, moved to a threshing ground, and then threshed and separated by manual labor immediately. The total loss was the sum of those occurred in oilseed rape due to natural shedding, crop disturbance
ISSN:1002-6819
DOI:10.3969/j.issn.1002-6819.2014.17.002