四川农业大学学报 ›› 2010, Vol. 28 ›› Issue (03): 276-279.

• 研究论文 • 上一篇    下一篇

川中丘区不同耕作处理对玉米干物质积累转运和产量的影响

吴永成   

  1. 四川农业大学
  • 收稿日期:2010-05-17 修回日期:2010-06-24 出版日期:2010-09-30 发布日期:2010-09-30
  • 通讯作者: 吴永成
  • 基金资助:

    国家科技支撑计划“坡地作物高产高效生产技术研究”

Effect of Different Tillage Treatment on the Accumulation of Dry Matter and Yield of Maize in the Middle of Sichuan Hilly Basin

WU YongCheng   

  1. Sichuan Agricultural University
  • Received:2010-05-17 Revised:2010-06-24 Online:2010-09-30 Published:2010-09-30
  • Contact: WU YongCheng

摘要:

本研究以“正红311”为材料,单因素随机区组设计,在川中丘区自然干旱条件下进行了不同耕作处理(露地平栽T1、稻草覆盖平栽T2、地膜覆盖平栽T3、顺坡垄作地膜覆盖T4、顺坡膜侧栽培T5、露地横坡垄作T6)对玉米干物质积累运转及产量影响的田间试验。结果表明,在玉米吐丝期和成熟期,T3、T4、T5等处理干物质积累量以及籽粒干重明显较高,而且T4、T5处理的单株干物质和茎鞘干物质转运量及其对籽粒的贡献率均显著高于T1、T2、T6等处理。T3、T4、T5等处理之间的单位面积籽粒产量差异较小,但它们均显著高于T1、T2、T6处理。基于简化栽培考虑,膜侧栽培和地膜覆盖平播处理是较好的春玉米耕作栽培方式。

关键词: 川中丘区, 玉米, 耕作处理;干物质;籽粒产量

Abstract:

In this field experiment,single radom-plot design was conducted to study the effect of six tillage treatments including T1(flat-planting),T2(flat-planting with straw mulching),T3(flat-planting with plastic film mulching),T4(straight bed-planting with plastic film mulching),T5(planting on the side of plastic film mulching),T6(bed-planting cross slope)on yield and dry matter accumulation of maize c. v. zheng-hong311 under the condition of natural drought in the Middle of Sichuan Hilly Basin. The results showed that the treatments with plastic film mulching(T3、T4、T5)had high dry matter accumulation and grain weight relatively. Furthermore, the plant dry matter, stem and leaf transport value and its contribution rates to grain of T4、T5 treatments were significantly higher than T1、T2、T6 treatments. All the treatments with plastic film mulching(T3、T4、T5)have little difference of grain yield , but they were significantly higher than T1、T2、T6 treatments. Based on the condieration of simplified cultivation, T3 and T5 treatments are better tillage way in spring maize.

Key words: the hilly area of the middle Sichuan Basin, maize, tillage treatment;dry matter;grain yield