辽西北风沙地苹果与红薯间作系统土壤养分季节动态特征及养分效应分析

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摘 要 通过对苹果与红薯间作系统不同季节土壤养分动态变化情况及与单独种植间的养分效应进行的对比研究，结果表明：间作系统整体养分含量呈下降趋势，但7月对养分的消耗最多，养分中的氮、钾需要及时补充，磷则消耗较少；间作系统的全氮和速效钾比红薯单作消耗少，但总体养分消耗比苹果单作多。

关键词 苹果红薯间作；土壤养分；季节变化

中图分类号：S753.53

文献标识码：A

doi：10.13601/j.issn.1005-5215.2024.01.016

Analysis of Seasonal Dynamic Characteristics and Nutrient Effects of Soil

Nutrients in Apple and Sweet Potato Intercropping System in Sandy

Land of Northwest Liaoning ProvinceAi Tingting

（Liaoning Institute of Sandy Land Control and Utilization，Fuxin 123000，China）

Abstract The dynamic changes of soil nutrients in apple and sweet potato intercropping system in different seasons and the nutrient effects of single planting were compared and studied.The results showed as follows： the overall nutrient content of the intercropping system showed a downward trend，but the nutrient consumption was the most in July，and the nitrogen and potassium in the nutrient needed to be replenished in time，while the phosphorus consumption was less;the consumption of total nitrogen and available potassium in intercropping system was less than that in sweet potato monoculture，but the overall nutrient consumption was more than that in apple monoculture.

Key words apple and sweet potato intercropping;soil nutrients;seasonal changes

科尔沁沙地位于内蒙古东南部西辽河中下游，面积约5.06万km2，是中国最大的沙地。（剩余2455字）