草地学报

›› 2010, Vol. 18 ›› Issue (6): 870-874.DOI: 10.11733/j.issn.1007-0435.2010.06.022

• 研究论文 • 上一篇    下一篇

磷肥和石灰对红壤墨西哥玉米生长的影响

文石林1,2, 董春华1,2, 荣湘民3   

  1. 1. 中国农业科学院农业资源与农业区划研究所, 祁阳农田生态系统国家野外试验站, 湖南, 祁阳, 426182;
    2. 中国农业科学院农业资源与农业区划研究所, 农业部植物营养与养分循环重点开放实验室, 北京, 100081;
    3. 湖南农业大学资源环境学院, 湖南, 长沙, 410128
  • 收稿日期:2010-07-28 修回日期:2010-09-07 出版日期:2010-12-15 发布日期:2010-12-15
  • 通讯作者: 董春华,E-mail:dch200707@yahoo.com.cn
  • 作者简介:文石林(1964- ),男,湖南宁乡人,研究员,博士,主要从事土壤改良与植物营养研究,E-mail:shilin.wen@tom.com
  • 基金资助:
    国家科技支撑计划重点项目(2009BADC6B05)(2006BAD05B09)(2006BAD25B08)资助

The Effects of Phosphate and Lime Application on Growth of Zea mexicana in Red Soils

WEN Shi-lin1,2, DONG Chun-hua1,2, RONG Xiang-ming3   

  1. 1. Institute of Agricultural Resources and Regional Planning CAAS, Qiyang Agro-ecosystem of National Field Experimental Station, Qiyang Hunan 426182;
    2. Institute of Agricultural Resources and Gegional planning CAAS, Key Laboratory of Plant Nutrition and Nutrient Cycling of Ministry of Agriculture, Beijing 100081, China;
    3. College of Resource and Environment, Hunan Agricultural University, Changsha, HunanProvince 410128, China
  • Received:2010-07-28 Revised:2010-09-07 Online:2010-12-15 Published:2010-12-15

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摘要： 为推广墨西哥玉米(Zea mexicana)栽培,于2009年采用盆栽试验,研究了南方丘陵区酸性红壤上石灰和磷肥配合施用对墨西哥玉米生长发育的影响。结果表明:施磷(25~200 mg·kg-1)能显著提高墨西哥玉米的株高、分蘖数和生物产量(P<0.05),且其效应基本是随磷肥用量增加而增加;低量石灰下(0.7~1.4 g·kg-1),石灰能提高墨西哥玉米的株高和分蘖数,石灰与磷肥有显著的正交互作用(P<0.05);高量石灰下(2.1~2.8 g·kg-1),墨西哥玉米的株高和分蘖数有所降低;墨西哥玉米的经济产量对低量石灰(0.7~1.4 g·kg-1)呈现为正效应,对高量石灰(2.1~2.8 g·kg-1)呈现为负效应,以1.4 g·kg-1的石灰和高量磷为最高产组合。因此,施用1.4 g·kg-1石灰和高量磷有利于红壤环境中墨西哥玉米生产。

关键词: 墨西哥玉米, 磷肥, 石灰, 交互作用

Abstract: To promote the cultivation of Zea mexicana,the effects of liming and P fertilizers on growth of Zea mexicana were study by pot experiments using hilly acid red soil of Southern China during 2009.Results showed that P application(25~200 mg·kg-1 soil) could increase plant height,number of tillers and yield of Zea mexicana(P<0.05).These effects were enhanced with increasing rates of P fertilizers application.Lime increased height and number of tillers.There were significant positive interactions between P and lime at lower content(0.7~1.4 g·kg-1 soil)(P<0.05).However,lime at high rate(2.1~2.8 g·kg-1 soil) slightly decreased plant height and number of tillers.Positive and negative effects of liming on Zea mexicana growth were observed.The yield of Zea mexicana increased with liming rate from 0.7 to 1.4 g·kg-1,and decreased with liming rate from 2.1 to 2.8 g·kg-1.The combination of the 1.4 g·kg-1 lime and the highest content of P fertilizers(200 mg·kg-1 soil) produced the highest yield of Zea mexicana compared with other treatments.Therefore,the application of 1.4 g·kg-1 soil of lime and 200 mg·kg-1 soil of P fertilizers are conducive to the cultivation of Zea mexicana in red soils.

Key words: Zea mexicana, P fertilizer, Lime, Interaction

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