QIAO Jin-you,SUN Jian,TIAN Yuan-yuan,et al.Experiments on the Regularities of Timeliness Loss Changing with Soybean Harvesting Date in Beian[J].Soybean Science,2017,36(05):803-807.[doi:10.11861/j.issn.1000-9841.2017.05.0803]
北安地区大豆收获适时性损失规律研究
- Title:
- Experiments on the Regularities of Timeliness Loss Changing with Soybean Harvesting Date in Beian
- Keywords:
- Soybean; Harvest; Timeliness loss rate; Regularity; Experiment
- 文献标志码:
- A
- 摘要:
- 大豆生产关键作业环节适时性损失规律是影响大豆产量及效益的重要因素,也是优化大豆生产机器系统的重要依据。以北安地区大豆收获作业为研究对象,采用去除边界效应、控制单一变量、随机区组等试验法设计试验方案,确定每日收获大豆小区分布;依据罗曼诺夫斯基准则剔除异常试验数据,运用 SPSS 统计分析软件对试验数据进行回归分析,得到北安地区大豆收获量及收获适时损失率随收获日期呈二次函数规律变化。试验条件下,北安地区大豆最佳收获日为10月6日。试验结果为合理确定该地区大豆收获日期提供理论依据,为农业机器系统优化提供参考。
- Abstract:
- One significant factor which effects soybean yield and economic benefit is timeliness loss regularities of key operations. And the timeliness loss is also the vital basement for optimizing soybean production machinery system.Soybean harvesting operation in Beian region, Heilongjiang province was taken as the research object, and the experiment was designed adopting methods of removing boundary effect, taking the harvesting date as the only variable, test plots distributing in random in order to obtain the real date. Abnormal testing data were eliminated by Romanowski criterion and SPSS statistics software was utilized for constructing the mathematic model for timeliness loss changing with the harvesting date, which is shown as a quadratic discipline in Beian region. The best soybean harvesting date in Beian was Oct 6th under the testing condition. The conclusion of the paper supplies reasonable theoretical basis for determining harvesting date in the experiment region and provides reference for optimizing agricultural machinery system.
参考文献/References:
[1]李磊.我国大豆市场价格调控对策研究—基于协整关系的价格影响因素分析[J]. 人力资源管理, 2017(1): 216-218. (Li L. A study on the price regulation of soybean market in China An analysis of the factors affecting the price based on cointegration[J]. Human Resource Management, 2017(1): 216-218.)
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备注/Memo
基金项目:公益性行业(农业)科研专项(201303011);国家大豆产业技术体系岗位科学家“十三五”任务(CARS-04-PS22)。