不同压砂地龄土壤肥力及硒砂瓜品质分析

发布时间：2018-06-05 20:53

本文选题：压砂地龄 + 土壤肥力　；参考：《北方园艺》2017年03期

【摘要】：为了探明砂田土壤肥力随压砂年限的变化趋势及分析硒砂瓜品质的变异及相关性,以宁夏中卫市兴仁三合村、兴仁拓寨村和香山三眼井村的3、10、20年砂田为研究对象,对不同压砂地龄土壤中的9个土壤养分及硒砂瓜的7个品质指标进行检测分析,同时对硒砂瓜品质指标进行主成分分析。结果表明:随着压砂年限的延长,土壤肥力逐渐降低,因此,应在耕作过程中进行科学合理的施肥,以保证砂田的持续利用;硒砂瓜品质指标中变异系数最大的是硝酸盐含量,最小的是可溶性固形物含量;硒砂瓜的中心固形物含量和边缘固形物含量存在极显著正相关,总酸含量和番茄红素、硝酸盐含量和边缘固形物含量也均存在显著正相关,硒砂瓜7个品质指标中,对硒砂瓜综合品质影响最大的是可溶性固形物含量和番茄红素含量。
[Abstract]:In order to find out the variation trend of soil fertility with the years of sand pressure and to analyze the variation and correlation of selenium sand melon quality, the sand fields of Xingren Sanhe Village, Xingrentuozhai Village and Sanyan well Village of Xiangshan City in Zhongwei City of Ningxia were studied for 20 years. Nine soil nutrients and seven quality indexes of selenium melon were detected and analyzed in the soil of different ages of sand compaction, and the principal component analysis of the quality index of selenium sand melon was carried out at the same time. The results showed that the soil fertility decreased gradually with the prolongation of the years of sand compaction. Therefore, scientific and reasonable fertilization should be carried out in the tillage process to ensure the sustainable utilization of sand fields, and the highest coefficient of variation in the quality index of selenium sand melon was nitrate content. The content of soluble solids was the smallest, and there was a significant positive correlation between the central solids content and the edge solids content, the total acid content and lycopene, the nitrate content and the edge solids content. The content of soluble solids and lycopene had the greatest influence on the comprehensive quality of selenium sand melon.
【作者单位】：宁夏农产品质量标准与检测技术研究所;
【基金】：宁夏农林科学院科技创新先导资金资助项目(NKYJ-14-12)
【分类号】：S651;S158

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