浙江农业学报 ›› 2017, Vol. 29 ›› Issue (4): 521-527.DOI: 10.3969/j.issn.1004-1524.2017.04.01

• 作物科学 •    下一篇

小麦秸秆还田量和还田方式对砂姜黑土地玉米生长发育的影响

郭静1, 周可金2, *, 刘芳1, 陈琳1, 査道贵1   

  1. 1.宿州职业技术学院 农艺系,安徽 宿州 234101;
    2.安徽农业大学 农学院,安徽 合肥 230036
  • 收稿日期:2016-12-12 出版日期:2017-04-20 发布日期:2017-04-27
  • 通讯作者: 周可金,E-mail:zhoukejin@163.com
  • 作者简介:郭静(1972—),女,安徽宿州人,硕士,副教授,研究方向为作物高产优质栽培。E-mail:guojing580@sohu.com
  • 基金资助:
    安徽省自然科学基金重点项目(2014A254)

Effects of returning amount and manner of wheat straw on maize growth in lime concretion black soil field

GUO Jing1, ZHOU Kejin2, *, LIU Fang1, CHEN Lin1, ZHA Daogui1   

  1. 1. Agronomy Department, Suzhou Vocational Technique College, Suzhou 234101, China;
    2. College of Agriculture, Anhui Agricultural University, Hefei 230036, China
  • Received:2016-12-12 Online:2017-04-20 Published:2017-04-27

摘要: 为了探究在砂姜黑土地上适宜的秸秆还田量和秸秆还田方式,试验设置了2因素不同水平组合9个处理,以郑单958为试验材料,研究不同处理对玉米株高、第四茎节单位茎长干物质量、光合参数、根系数量和干质量、穗部性状、产量等多项指标的影响。结果表明,2/3秸秆量深耕翻还田的处理秸秆还田效应最好、产量最高,所有指标高于或显著(P<0.05)高于其他处理;其次是2/3秸秆量浅旋耕还田的处理;全量秸秆直接覆盖还田的处理产量最低。方差分析结果表明,在砂姜黑土地上2/3秸秆还田量极显著(P<0.01)优于1/2秸秆还田量和全量还田量,全量还田量为最差还田量;深耕翻极显著(P<0.01)优于浅旋耕和粉碎后直接覆盖还田,直接覆盖还田为最差还田方式。在砂姜黑土地上应推广2/3秸秆量深耕翻还田。

关键词: 小麦秸秆, 还田量, 还田方式, 砂姜黑土, 玉米

Abstract: To explore the suitable straw returning amount and manner in lime concretion black soil field, the experiment including 9 treatments with different level combinations of 2 test factors was performed on growth of maize cultivar Zhengdan 958. The indexes determined included plant height, ratio of dry weight to length of 4th internode, photosynthesis indexes, root number and weight, ear characters and yield. It was shown that the treatment of 2/3 straw amount returning with deep ploughing up led to the best straw returning effect and the highest yield, of which all indexes were higher or significantly (P<0.05) higher than those of other treatments. The treatment of 2/3 straw amount returning with shallow rotary tillage was next in rank. While the treatment of whole quantity returning with directly covering revealed the worst performance and the lowest yield. The variance analysis of each index indicated that 2/3 straw amount returning was significantly (P<0.01) better than 1/2 straw amount and the whole quantity, and the whole quantity was the worst straw returning amount. Deep ploughing showed significantly (P<0.01) better effect on maize growth than that of the shallow rotary tillage and directly covering after crushing, and directly covering performed the worst. So, 2/3 straw amount returning with deep ploughing up should be extensively promoted in lime concretion black soil field.

Key words: wheat straw, straw returning amount, straw returning manner, lime concretion black soil field, maize

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