信阳师范学院学报（自然科学版）2024，Vol.37Issue(4)：421-427,561,8.DOI:10.3969/j.issn.1003-0972.2024.04.001
豫南油茶林土壤养分化学计量及评价
Soil Nutrient Stoichiometry and Evaluation of Camellia Oleifera Forests in Southern Henan Province:The Case of Guangshan County
摘要
Abstract
In order to improve the yield and quality of Camellia oleifera in Xinyang and promote the balanced fertilization of C.oleifera woodland,based on 10 C.oleifera forest sample sites in Guangshan county,four soil profile depth stratified samples of[0,10)cm,[10,20)cm,[20,40)cm and[40,60)cm were collected,the indexes of pH,total nitrogen,hydrolyzed nitrogen,total phosphorus,quick-acting potassium,etc.were analyzed,and the evaluation standard of soil nutrient in oil tea plantation were proposed to evaluate and classify soil nutrient status in the sample sites.The soil nutrient evaluation standard was proposed to evaluate and grade the soil nutrient status of the sample points.The results showed that:Soil pH fluctuated little(4.40～6.40),total nitrogen content fluctuated greatly and was low(0.021%～0.211% ),and only 10% reached the standard of Grade Ⅰ oil tea woodland;hydrolyzable nitrogen and quick-acting potassium content was moderate,with 10% and 70% reaching the Grade Ⅰ and Ⅱ,respectively;The effective phosphorus was extremely variable,with only 10% meeting the Grade Ⅰ;Total phosphorus was generally of Grade Ⅲ,and the content of total potassium was better,with 50% meeting the Grade Ⅰ and Ⅱ standards.Combined with the results of the survey,it is suggested that,for oil tea woodlands with high nutrient ratings,the reasonable fertilization should be emphasized to maintain the balance of soil nutrients;for medium-and low-nutrient-rated woodlands,fertilizer application should be intensified to increase soil nutrient content,and the targeted fertiliza-tion and management should be carried out on new and old different oil tea woodlands.关键词
油茶/土壤养分/评价/土壤剖面/光山县Key words
Camellia oleifera/soil nutrients/evaluation/soil profile/Guangshan county分类
农业科技引用本文复制引用
卜付军,周亚运,张辉,简波,段传宏,朱振飞,卜菀萌,刘亚丽,余开慧,钱红阳,周宁宁,孙玲..豫南油茶林土壤养分化学计量及评价[J].信阳师范学院学报（自然科学版）,2024,37(4):421-427,561,8.基金项目
"十一五"国家科技支撑项目专项项目(2009BADB1B010209) （2009BADB1B010209）
河南省重大科技专项项目(171100110400) （171100110400）
信阳市科技创新专项项目(20190031) （20190031）
信阳生态研究院重点项目(2023XYZD05) （2023XYZD05）
信阳生态研究院开放基金项目(2023XYQN21) （2023XYQN21）
