遼西北風(fēng)沙地蘋果與紅薯間作系統(tǒng)土壤養(yǎng)分季節(jié)動(dòng)態(tài)特征及養(yǎng)分效應(yīng)分析

打開文本圖片集

摘 要 通過對(duì)蘋果與紅薯間作系統(tǒng)不同季節(jié)土壤養(yǎng)分動(dòng)態(tài)變化情況及與單獨(dú)種植間的養(yǎng)分效應(yīng)進(jìn)行的對(duì)比研究，結(jié)果表明：間作系統(tǒng)整體養(yǎng)分含量呈下降趨勢(shì)，但7月對(duì)養(yǎng)分的消耗最多，養(yǎng)分中的氮、鉀需要及時(shí)補(bǔ)充，磷則消耗較少；間作系統(tǒng)的全氮和速效鉀比紅薯單作消耗少，但總體養(yǎng)分消耗比蘋果單作多。

關(guān)鍵詞 蘋果紅薯間作；土壤養(yǎng)分；季節(jié)變化

中圖分類號(hào)：S753.53

文獻(xiàn)標(biāo)識(shí)碼：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，F(xiàn)uxin 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

科爾沁沙地位于內(nèi)蒙古東南部西遼河中下游，面積約5.06萬km2，是中國(guó)最大的沙地。（剩余2455字）