Effects of Irrigation Quantity on the Production and Biomass of Alfalfa

ZHANG Qing-xia; SONG Nai-ping; CHEN Lin; WANG Lei; MA Qiong; ZHANG Wei

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Effects of Irrigation Quantity on the Production and Biomass of Alfalfa

- Effects of Irrigation Quantity on the Production and Biomass of Alfalfa
- Bulletin of Soiland Water Conservation Vol. 28, Issue 2, Pages: 150-154(2009)
- 作者机构：
  
  1. 西北退化生态系统恢复与重建省部共建教育部重点试验室,宁夏,银川,750021
  2. 宁夏大学资源环境学院,宁夏,银川,750021
  4. 宁夏综合农业开发办公室,宁夏,银川,750001
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2009
- 稿件说明：
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ZHANG Qing-xia, SONG Nai-ping, CHEN Lin, et al. Effects of Irrigation Quantity on the Production and Biomass of Alfalfa[J]. Bulletin of Soiland Water Conservation, 2009, 28(2): 150-154.
DOI：

ZHANG Qing-xia, SONG Nai-ping, CHEN Lin, et al. Effects of Irrigation Quantity on the Production and Biomass of Alfalfa[J]. Bulletin of Soiland Water Conservation, 2009, 28(2): 150-154. DOI：

摘要

采用随机区组试验设计

研究了不同灌溉量对紫花苜蓿生长特性和生物量的影响

阐明了水分状况与苜蓿生长特性的关系。(1)在苜蓿整个生育期中

各处理的叶面积从分枝期到盛花期变化趋势基本相同

都是先升后降;不同灌溉量对茎叶比产生的作用不明显;不同生育期苜蓿的植株高度随灌溉量的增加而增高。(2)现蕾期前后是苜蓿鲜生物量形成的关键时期。因此在现蕾期进行合理灌溉

对苜蓿叶面积、植株高度和产量的提高具有较大影响。

Abstract

The objective of this study was to ascertain the best irrigation methods through researching the effects of different irrigation on alfalfa biological characteristics and biomass by a randomized block experiment. The main conclusions were as follows:(1)The leaf area of alfalfa increased from branching period to full flowering period，Irrigation quantity increased shoot/leaf ratio unremarkably; The bigger height of alfalfa appeared at higher irrigation quantity. (2) Budding period is the key stage affecting fresh biomass formation

so reasonable irrigation should be carried out at this time to improve the leaf area，height and output.

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