摘要
为分析上海崇明区温州蜜柑园土壤有效养分、叶片矿质元素含量的测定以及营养状况,提供科学施肥的理论依据。对研究区30个温州蜜柑园进行土壤和叶片调研取样,测定土壤和叶片矿质营养元素含量,与推荐指标进行对比,确认了土壤和叶片营养状况丰缺状况。结果表明:崇明区温州蜜柑园土壤整体偏碱,pH平均值为7.78;土壤碱解氮、有效磷、以及有效锰处于缺乏或低量水平的温州蜜柑园分别占83.3%、97.3%、90.0%,其余土壤营养元素整体处于适宜或高量水平;温州蜜柑园叶片钾、钙和锌含量缺乏的占比分别为80.0%、60.0%和100.0%;叶片氮含量处于过量水平的温州蜜柑园占比80.0%,其余元素含量整体处于适宜水平;对比土壤养分与叶片养分发现土壤交换性钙、交换性镁的含量情况与叶片中对应元素显著正相关,其余的营养元素无明显的相关性。针对上海崇明区温州蜜柑园土壤整体缺碱解氮、有效磷以及有效锰的情况,土壤管理需要考虑增加氮肥、磷肥投入以及锰肥补施,土壤过量但叶片缺乏的元素例如钙、锌考虑叶面喷施的施肥方式进行补充。
To provide a theoretical basis for scientific fertilization in Chongming district,Shanghai,by measuring the effective soil nutrients,the measurement of mineral element content of leaves and nutritional status.Soil and leaf survey and sampling were carried out in 30 Wenzhou mandarin orange orchards in Chongming District,Shanghai,and the mineral nutrient content of soil and leaves was determined,and the nutrient status of soil and leaves was confirmed by comparing with the recommended indicators.The results showed that:the soil of Wenzhou mandarin mandarin orange garden in Chongming district,Shanghai was alkaline overall,with an average pH of 7.78,and 83.3%,97.3%and 90.0%of the soil alkali hydrolysis,available phosphorus and effective manganese were at the lack or low levels of Wenzhou mandarin orange garden in Chongming district,Shanghai,and the remaining soil nutrient elements were overall at appropriate or high levels.The proportion of potassium,calcium and zinc deficiency in leaves of Wenzhou mandarin orange orchard was 80.0%,60.0%and 100.0%,respectively.80.0%of Wenzhou mandarin orange orchards had excessive nitrogen content,and the content of other elements was at an appropriate level.Comparing soil nutrients and leaf nutrients,it was found that the content of soil exchange calcium and exchange magnesium was significantly positively correlated with the corresponding elements in the leaves,while the rest of the nutrients had no obvious cor-relation.In view of the overall soil deficiency of alkali hydrolysis,available phosphorus and effective manganese in Wenzhou mandarin orange garden in Chongming district,Shanghai,soil management needs to consider increasing nitrogen fertilizer,phosphate fertilizer input and manganese fertilizer supplementation,and the elements such as cal-cium and zinc lacking in soil but leaf deficiency should be supplemented by foliar spraying.
作者
刘静
丰智松
陈磊
安琪琪
石振昌
陶裕欧
张卫峰
LIU Jing;FENG Zhisong;CHEN Lei;AN Qiqi;SHI Zhenchang;TAO Yuou;ZHANG Weifeng(School of Resources and Environment,Anhui Agricultural University,Hefei 230036;Anhui Provincial Key Laboratory of Farm-land Ecological Conservation and Pollution Prevention and Control,Hefei 230036;Anhui Engineering Research Center for Intelligent Manufacturing and Efficient Utilization of Green Phosphate Fertilizer,Hefei 230036;College of Resources and Environment,China Agricultural University,Beijing 100083;Shanghai Chongming District Ecological Agriculture Science and Technology Innovation Center,Shanghai 202150;Shanghai Chongming District Agricultural Product Quality and Safety Center,Shanghai 202150;Agri-cultural Comprehensive Technology Extension Service Center,Lühua Town,Chongming District,Shanghai 202151)
出处
《安徽农业大学学报》
CAS
CSCD
2023年第4期715-720,共6页
Journal of Anhui Agricultural University
基金
上海科技兴农项目(沪农科推字(2020)第2-2号)资助。
关键词
温州蜜柑
崇明区
土壤养分
叶片
矿质元素
Wenzhou mandarin orange
Chongming district
soil nutrients
blades
mineral element
