海南省芒果主产区果园土壤肥力评价

发布时间：2018-03-09 23:24

  本文选题：海南省　切入点：芒果主产区　出处：《江苏农业科学》2017年03期 　论文类型：期刊论文

【摘要】：对海南省三亚、乐东、陵水3个芒果主产区11个芒果种植园0~20 cm土层的土壤样品进行分析。结果表明,3个地区土壤的pH值均偏低,pH值5.5的土样比例达到了90.91%,三亚、陵水pH值5.5的土样达到了100%;全区有54.55%的土壤有机质含量低于10 g/kg;36.36%的样品碱解氮含量150 mg/kg,有效磷含量均高于10 mg/kg;81.82%的土壤速效钾含量低于100 mg/kg。总体上看,陵水地区的有机质、碱解氮、速效磷、速效钾含量均低于三亚和乐东,而且3个地区的速效钾含量均较低。
[Abstract]:Soil samples from 11 mango plantations in three main mango producing areas of Sanya, Ledong and Lingshui in Hainan Province were analyzed. The results showed that the proportion of soil samples with lower pH value and pH value reached 90.91 and Sanya, respectively. The soil samples with pH 5. 5 in Lingshui reached 100mg / kg; 54.55% samples with soil organic matter content less than 10 g / kg ~ (-1) 路kg ~ (-1) ~ (36. 36%) were less than 150mg / kg ~ (-1) N content, and the available phosphorus content was higher than 10 mg / kg ~ (-1) kg ~ (-1) K ~ (2 +) content of soil < 100 mg / kg ~ (-1). Generally speaking, the organic matter in Lingshui area was lower than 100 mg / kg 路kg ~ (-1) 路kg ~ (-1). The contents of alkali-hydrolyzed nitrogen, available phosphorus and available potassium were all lower than those in Sanya and Ledong, and the available K contents in the three regions were all lower.
【作者单位】： 海南大学农学院;
【基金】：国家公益性行业(农业)科研专项(编号:201203092-4-3) 海南大学中西部计划-学科重点领域建设项目(编号:ZXBJH-XK003)
【分类号】：S158;S667.7
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本文编号：1590753