设为首页  |   加入收藏
引用本文:
【打印本页】   【下载PDF全文】   查看/发表评论  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 262次   下载 212 本文二维码信息
码上扫一扫!
分享到: 微信 更多
不同种植模式下农田耕层土壤肥力现状比较——以皖南宣州区为例
王安琪1,2, 杨平3, 赵燕洲4, 李贤胜3, 何小卫3, 李武进5, 李宏光5, 肖艳松5, 朱启法6, 张国6, 薛琳6, 宋效东1, 李德成1
1.土壤与农业可持续发展国家重点实验室(中国科学院南京土壤研究所), 南京 210008;2.中国科学院大学, 北京 100049;3.宣城市土肥站, 安徽宣城 242000;4.宣城市宣州区土肥站, 安徽宣城 242000;5.湖南省烟草公司郴州市公司, 湖南郴州 423000;6.安徽皖南烟叶有限责任公司, 安徽宣城 242000
摘要:
选择宣城市宣州区20个烟稻轮作田块、20个单季稻田块、22个中药材田块、20个双季稻田块、20个稻油轮作田块和20个稻麦轮作田块,测定分析耕层土壤(0 ~20 cm)的pH,有机质、有效磷和速效钾含量,计算土壤综合肥力指数(IFI),旨在通过比较提出有益于提升土壤肥力的种植模式和施肥建议。结果表明:①烟稻轮作土壤pH最高,中药材土壤显著低于其他种植模式;双季稻土壤有机质含量最高,中药材土壤显著低于其他种植模式;中药材土壤有效磷含量显著高于其他种植模式,单季稻土壤显著低于其他种植模式;中药材和双季稻土壤速效钾含量显著高于稻油轮作土壤;各田块IFI指数为双季稻(0.880)>烟稻轮作(0.821)>单季稻(0.817)>稻麦轮作(0.760)>中药材(0.693)>稻油轮作(0.645)。②综合分析比较土壤各指标、IFI值和净收益后,推荐双季稻和烟稻轮作种植模式。③稻麦轮作、单季稻和稻油轮作应注意增施磷钾肥和有机肥;但45%的烟稻轮作田块应注意改酸,15%和45%田块应增施有机肥和钾肥,10%和60%田块应削减有机肥和磷钾肥。
关键词:  种植模式  土壤属性  土壤肥力  施肥  宣州
DOI:10.13758/j.cnki.tr.2021.02.009
分类号:S158.3
基金项目:湖南省烟草公司郴州市公司科技项目(郴烟运〔2019〕45号)资助。
Current Topsoil Fertility of Farmlands Under Different Planting Patterns——A Case Study of Xuanzhou District of South Anhui
WANG Anqi1,2, YANG Ping3, ZHAO Yanzhou4, LI Xiansheng3, HE Xiaowei3, LI Wujin5, LI Hongguang5, XIAO Yansong5, ZHU Qifa6, ZHANG Guo6, XUE Lin6, SONG Xiaodong1, LI Decheng1
1.State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China;2.University of Chinese Academy of Sciences, Beijing 100049, China;3.Soil and Fertilizer Station of Xuancheng City, Xuancheng, Anhui 242000, China;4.Soil and Fertilizer Station of Xuanzhou District, Xuancheng, Anhui 242000, China;5.Chenzhou Tobacco Company of Hunan Province, Chenzhou, Hunan 423000, China;6.Wannan Tobacco Co. Ltd., Xuancheng, Anhui 242000, China
Abstract:
In this study, 20 tobacco-rice fields, 20 single cropping rice fields, 22 Chinese medicinal materials fields, 20 double cropping rice fields, 20 rice-rape fields and 20 rice-wheat fields were selected in September 2018, pH, soil organic matter (SOM), available phosphorus (AP) and rapid available potassium (RAK) of plough soil (0-20 cm) were analyzed, and then soil integrated fertility index (IFI) was calculated based on these four indicators in order to recommend the suitable fertilization for improving soil fertility by comparing the planting patterns. The results showed:1) pH of tobacco-rice was the highest, and pH of Chinese medicinal materials was significantly lower than those of other planting modes; SOM of double cropping rice was the highest, and SOM of Chinese medicinal materials was significantly lower than those other patterns; AP of Chinese medicinal materials was significantly higher than those of the other patterns, and single cropping rice was significantly lower than those of other patterns; RAK of Chinese medicinal materials and double cropping rice patterns were significantly higher than that of rice-rape patterns; IFI from high to low was double-crop rice (0.880) > tobacco-rice rotation (0.821) > single-crop rice (0.817) > rice-wheat rotation (0.760) > Chinese medicinal materials (0.693) > rice-rape rotation (0.645). 2) After comprehensive analysis and comparison of soil indicators, IFI values and net income, double-crop rice and tobacco-rice models were recommended. 3) For suitable fertilization, rice-wheat, single cropping rice and rice-rape patterns should pay attention to increasing the application of phosphorus, potassium and organic fertilizer appropriately; for tobacco-rice, 45% of the fields should continue to apply alkaline materials to change acid, and 15% and 45% fields should be added with organic and potassium fertilizers, 10% and 60% field should reduce organic fertilizer and phosphate and potassium fertilizer, and 15% and 45% fields should be added with organic and potassium fertilizers, 10% and 60% field should reduce organic fertilizer and phosphate and potassium fertilizer.
Key words:  Planting patterns  Soil properties  Soil fertility  Fertilization  Xuanzhou

您是第3999710位访问者
版权所有 © 《土壤》编辑部
本系统由北京勤云科技发展有限公司设计   京ICP备09084417号