QIAO Jin-you,LI Chuan-lei,HAN Zhao-zhen,et al.Study on the Regularity of Timeliness Loss Changing with Soybean Sowing Date[J].Soybean Science,2016,35(01):70-73.[doi:10.11861/j.issn.1000-9841.2016.01.0070]
大豆播种适时性损失规律试验研究
- Title:
- Study on the Regularity of Timeliness Loss Changing with Soybean Sowing Date
- Keywords:
- Soybean; Sowing; Timeliness loss; Regularity
- 文献标志码:
- A
- 摘要:
- 探究大豆产量与播种日期的变化的关系可以为确定最佳播种期、合理安排大豆播种作业提供科学依据。本文设计大豆播种适时性损失试验流程,采取随机区组试验方法确定每日播种小区分布位置;按设计日期在相应小区播种大豆、采取相同的田间管理方法,所有试验小区大豆同日收获。在收集到每个小区大豆产量的数据后,采用格拉布斯准则剔除数据,并采用SPSS 22.0回归分析得出大豆适时损失率随播种日期呈抛物线规律变化,试验地区大豆最佳播种日期为5月16日。
- Abstract:
- It is scientific accordance for determining the suitable sowing date and arranging soybean sowing operation to study the relationship between soybean yield and sowing date. The program of soybean sowing timeliness loss experiment was designed, and the randomized method was adopted to determine the distributions of sowing blocks. Sowing soybean following the randomized blocks and designed date, cultivated following the same procedure, harvested soybean in all blocks in the same date. The Grubbs criterion was adopted to eliminate error data, and the regularity of soybean timeliness loss rate changing with sowing date was showed as parabola law pointed out using SPSS 22.0 and the best sowing date of tested area was May 6th. The conclusion of the study is theoretical guidance for soybean mechanization production.
参考文献/References:
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备注/Memo
基金项目:公益性行业(农业)科研专项经费项目(201303011);国家大豆产业技术体系岗位科学家“十二五”任务(CARS-04-PS22);公益性行业(农业)科研专项经费项目(201503116-04)。