覆盖旱作水稻群体发育特征分析

应用生态学报 ›› 2004, Vol. ›› Issue (1): 59-62.

覆盖旱作水稻群体发育特征分析

盛海君^1,2, 沈其荣¹, 封克²

1. 南京农业大学资源与环境科学学院, 南京, 210059;
2. 扬州大学农学院, 扬州, 225009

收稿日期:2002-02-02 修回日期:2003-02-27
通讯作者: 沈其荣,E-mail:qrshen@njau.edu.cn
基金资助:
国家自然科学基金资助项目(30070446)

Population development characteristics of rice crop cultivated on aerobic soil with mulching

SHENG Haijun^1,2, SHEN Qirong¹, FENG Ke ²

1. College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China;
2. College of Agronomy, Yangzhou University, Yangzhou 225009, China

Received:2002-02-02 Revised:2003-02-27

摘要/Abstract

摘要： 通过田间试验,研究了不同覆盖旱作水稻处理与水作处理水稻的群体生育特征.结果表明,旱作水稻营养生长期较水作长,叶片变短、变窄,群体LAI变小,光合生产能力下降,最终粒数变少、粒重变轻.不同旱作处理之间表现为地膜覆盖旱作处理分蘖发生多,成穗率低,穗分化和籽粒形成与灌浆时间缩短,半腐解秸秆覆盖旱作和裸地旱作分蘖发生少,成穗率高,穗分化时间缩短,籽粒形成与灌浆的时间延长.产量表现为水作处理>地膜覆盖旱作>半腐解秸秆覆盖旱作>裸地旱作.

关键词: 旱作, 水稻, 群体特征

Abstract: Field experiments were carried out to study the population development characteristics of rice crop cultivated both on aerobic and waterlogged soil conditions. The results showed that the whole growth duration of rice growing on aerobic soil was one week longer than that on waterlogged soil. Shorter and narrower leaves and smaller LAI of rice population were found on aerobic soil than on waterlogged soil, which resulted in a decreased photosynthesis, smaller amount and lighter weight of rice grains on aerobic soil, compared with those on waterlogged soil. Among the aerobic treatments, more tillers, lower percentage of filled grains and shorter duration of grain forming were found on soils covered with plastic film than on soils covered with semi-decomposed straw or without mulching. The rice grain yield was decreased in the order of waterlogged soil > aerobic soil covered with plastic film > aerobic soil covered with semi-decomposed straw >aerobic soil without mulching.

Key words: Aerobic culture, Rice, Population development characteristics

中图分类号:

S158

盛海君, 沈其荣, 封克. 覆盖旱作水稻群体发育特征分析[J]. 应用生态学报, 2004, (1): 59-62.

SHENG Haijun, SHEN Qirong, FENG Ke . Population development characteristics of rice crop cultivated on aerobic soil with mulching[J]. Chinese Journal of Applied Ecology, 2004, (1): 59-62.

参考文献

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