湖北农业科学 ›› 2020, Vol. 59 ›› Issue (11): 51-56.doi: 10.14088/j.cnki.issn0439-8114.2020.11.011

• 资源·环境 • 上一篇    下一篇

黔中不同播期水稻土壤理化性状分析

张皓1, 2, 袁硕1, 张学彬1, 2, 金昭贵1, 翁玲3, 王禄静1, 杨涛3, 滕万里1, 李娟1, 许仍祥1   

  1. 1. 清镇市气象局, 贵州 清镇 551400;
    2. 贵阳国家农业气象试验站, 贵州 清镇 551400;
    3. 贵阳市气象局, 贵阳 550001
  • 收稿日期:2019-09-12 出版日期:2020-06-10 发布日期:2020-08-06
  • 通讯作者: 张学彬, 男, 工程师, 硕士, 主要从事气象防灾减灾研究, (电子信箱)190393528@qq.com。
  • 作者简介:张皓(1988-), 男, 河北廊坊人, 工程师, 硕士, 主要从事气候变化与应用气象工作, (电话)18786041594(电子信箱)hao.0210@163.com;
  • 基金资助:
    贵州省科技计划项目(20162528); 贵阳市气象局科研基金项目(201915)

Analysis on physical and chemical properties of soil under different sowing date of rice in central Guizhou province

ZHANG Hao1, 2, YUAN Shuo1, ZHANG Xue-bin1, 2, JIN Zhao-gui1, WENG Ling3, WANG Lu-jing1, YANG Tao3, TENG Wan-li1, LI Juan1, XU Reng-xiang1   

  1. 1.Qingzhen Meteorological Bureau, Qingzhen 551400, Guizhou, China;
    2.Country Agrometeorological Test Station in Guiyang, Qingzhen 551400, Guizhou, China;
    3.Guiyang Meteorological Bureau, Guiyang 550001, China
  • Received:2019-09-12 Online:2020-06-10 Published:2020-08-06

摘要: 以4段分期移栽水稻(Oryza sativa L. )土壤作为研究对象, 收集气温、泥温逐日数据, 同时测定了土壤pH、养分含量、机械组成、交换性盐基离子等指标, 通过方差分析和相关性分析探讨了不同播期水稻土壤理化性状的差异, 利用主成分分析计算出不同播期土壤综合得分。结果表明, 土壤养分含量为适宜到丰富;交换性盐基组分中Ca2+比例最高;土壤组成以粉粒为主;5月9日移栽的水稻土壤中黏粒含量最高, 对应的分形维数最大。相关性分析结果表明, K+与Mg2+之间表现为协同, 相关系数为0.953;有机质、全氮与Na+表现为显著正相关;pH与平均气温相关性极显著;速效钾与积温为显著正相关;黏粒含量在相关性分析中与多数指标表现出较强的正相关。针对不同播期进行的各因子主成分分析表明, 5月9日更适宜试验地点进行水稻移栽。

关键词: 水稻(Oryza sativa L. )播期, 土壤, 理化性状, 黔中地区

Abstract: Soil of four stages of rice (Oryza sativa L. ) transplanting were used as research objects to explore the differences of physical and chemical properties of rice soil at different sowing date. Daily data of air temperature and mud temperature were collected, and soil pH, nutrient content, mechanical composition and exchangeable base cations were measured. Through variance analysis and correlation analysis, the differences of physical and chemical properties of rice soil at different sowing date were discussed, and the soil comprehensive scores at different sowing date were calculated by principal component analysis. The results showed that soil nutrient content was from suitable to rich. The proportion of Ca2+ in the exchangeable base components was the highest, and the soil composition was mainly composed of silty grains. The content of clay grains of rice soil transplanted May 9 was the highest, and the corresponding fractal dimension was the largest. The results of correlation analysis showed that the correlation coefficient between K+ and Mg2+ was 0.953; Organic matter, total nitrogen and Na+ showed significant positive correlation; pH was significantly correlated with average temperature, while available potassium was significantly positively correlated with accumulated temperature; The clay content showed strong positive correlation with most indexes. Principal component analysis of various factors for different sowing date showed that the suitable date for rice transplanting was May 9.

Key words: sowing date of rice (Oryza sativa L. ), soil, physical and chemical properties, central Guizhou province

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