农田作业期最佳分布问题研究

合理确定最佳作业期是减少适时性损失，提高农业经济效益重要保障。文章指出单项作业和具有两项关键作业的作业期最佳分布定理限制条件：在实际农业生产中，某项作业的总作业量固定不变。而农业机械日作业效率随时间变化，不同作业期分布对应不同总作业日数。建立不同情况下作业量约束模型和适时性损失量（值）模型，指出作业期最佳分布应满足的条件；结合计算示例验证模型有效性。...

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Bibliographic Details
Published in东北农业大学学报 Vol. 47; no. 9; pp. 72 - 76
Main Author 乔金友 衣佳忠 李传磊 陈海涛 韩兆桢
Format Journal Article
LanguageChinese
Published 东北农业大学工程学院,哈尔滨,150030 2016
Subjects
作业期最佳分布
农田作业
证明
适时性损失
agricultural operation
作业期最佳分布
适时性损失
农田作业
proof
证明
timeliness loss
optimal distribution of operations period
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Summary:合理确定最佳作业期是减少适时性损失，提高农业经济效益重要保障。文章指出单项作业和具有两项关键作业的作业期最佳分布定理限制条件：在实际农业生产中，某项作业的总作业量固定不变。而农业机械日作业效率随时间变化，不同作业期分布对应不同总作业日数。建立不同情况下作业量约束模型和适时性损失量（值）模型，指出作业期最佳分布应满足的条件；结合计算示例验证模型有效性。
Bibliography:23-1391/S
agricultural operation; timeliness loss; optimal distribution of operations period; proof
QIAO Jinyou, YI Jiazhong, LI Chuanlei, CHEN Haitao, HAN Zhaozhen（School of Engineering, Northeast Agricultural University, Harbin 150030, China）
An unreasonable choice of agricultural operation period will cause more timeliness losses, so to rationally determine the optimum operation period is an important safeguard to cut timeliness losses and enhance economic performance. This paper proposed limiting conditions for the optimum distribution theorems with the individual work and two items of critical work mentioned in the published literatures and made it clear that in actual agricultural production, the efficiency of a certain operation is changeless, while the daily quantity of mechanized operation was often time-varying, so different operation period distributions correspond to different total operation days. Under this premise, a constraint model for operation quantity and a model for timeliness loss quantity
ISSN:1005-9369