生物炭基肥料对小麦生长、养分吸收及土壤肥力的影响

  本文关键词：生物炭基肥料对小麦生长、养分吸收及土壤肥力的影响，由笔耕文化传播整理发布。

生物炭基肥料对小麦生长、养分吸收及土壤肥力的影响

Effects of biochar-based fertilizer on soil fertility,wheat growth and nutrient absorption

[1] [2] [3] [4] [5]

KANG Ri-feng , ZHANG Nai-ming , SHI Jing , BAO Li , ZHANG Chuan-guang （ 1. College of Resources and Environ- ment, Yunnan Agricultural University, Kunming Yunnan 650201; 2.

[1]云南农业大学资源与环境学院,云南昆明650201; [2]云南省林业科学院,云南昆明650201

文章摘要：生物炭基肥料的研制是生物炭在农业应用中的重要方向。通过温室盆栽试验,研究了添加不同数量生物炭制作的肥料施入土壤中对小麦生长发育及土壤肥力的影响。结果表明,（1）小麦生育期内,施用生物炭占辅料75%及以上的处理（NPB3、NPB4）较对照处理均显著提高小麦地上部干重、地下部干重、总干重,其中辅料100%为生物炭（NPB4）的处理均达到显著水平,但各处理对小麦千粒重没有显著影响;（2）生物炭基肥料显著提高了小麦对N、P的吸收,提高幅度顺序为NPB4〉NPB3〉NPB2〉NPB1〉CK,其中小麦N吸收平均提高了19.07%,P吸收平均提高了15.00%;（3）土壤中有机质含量表现为NPB4〉NPB3〉NPB2〉NPB1〉CK,且与生物炭添加量呈显著正相关（p〈0.05）;（4）土壤碱解氮和有效磷含量大多呈先降低后升高的趋势,表明生物炭基肥料可持续供给小麦在生长后期对土壤中养分的需求。

Abstr：The development of biochar-based fertilizer is an important research area of biochar applications in agriculture. A pot trial in greenhouse was adopted to study the effects of the fertilizer containing different quantities of biochar on wheat growth and soil fertility. It was shown that （ 1 ） In wheat growth periods, the application of biochar-based fertilizers which the biochar content were more than 70% fertilizer accessories significantly increased the shoot dry weight, the root dry weight and＇ the total dry weight of wheat, especially in the 100% content biochar treatment NPB4. However, the application of biochar-based fer- tilizer had no significant effect on the 1 000-grain weight of wheat. （2） The biochar-based fertilizer significantly improved the absorption of nitrogen （ N）, phosphorus （P） in wheat by an average of 19.07% and 15% respectively, in the order of NPB4 〉 NPB3 〉 NPB2 〉 NPB1 〉 CK. （3） The order of the content of soil organic matter was NPB4 〉 NPB3 〉 NPB2 〉 NPB1 〉 CK, which had a significant positive correlation with the added amounts of biochar （p 〈0. 05）. （4） The contents of soil available N and available P mostly went down at first and then increased again, which indicated that the biochar-based fertilizer could continuously supply nutrients to wheat in the late stages of wheat growth.

文章关键词：

Keyword：:biochar-based fertilizer wheat nitrogen phosphorus

课题项目：国家重大水专项（2012ZX7102-003）; 云南省社会发展科技计划项目（2010CA010）

  本文关键词：生物炭基肥料对小麦生长、养分吸收及土壤肥力的影响，由笔耕文化传播整理发布。