烟区不同类型油菜秸秆腐解及养分释放特性研究

扫码查看

原文链接

NETL
NSTL
万方数据

中文摘要：本研究旨在探讨山东和四川烟区适合与烟草轮作的油菜品种，并分析其秸秆腐解及养分释放特性。通过采用尼龙网袋法，在室内模拟田间条件下对2种类型(白菜型和甘蓝型)的4个冬油菜品种进行培养，观察秸秆的腐解过程和养分释放情况。结果显示，培养前10 d，油菜秸秆快速腐解，各养分也快速释放，养分最终释放率表现为K＞N＞P＞C;腐解进程中，秸秆碳氮比有所波动，但大致呈上升趋势;白菜型油菜秸秆的腐解程度、碳和氮的释放率高于甘蓝型油菜，而钾的释放率低于甘蓝型油菜，磷的释放率表现出地区差异;四川烟区油菜秸秆的腐解程度及碳、氮、磷素的释放率高于山东烟区，钾的释放率高于山东白菜型油菜;油菜秸秆腐解可显著提高供试土壤中有机质、氮、磷和钾素的含量，但不同烟区、不同类型油菜秸秆的增效程度有所差异。从秸秆还田利用的角度来看，2烟区中的白菜型油菜品种更适合与烟草轮作种植。

外文标题：Different Types of Rape Straw in Tobacco Growing Areas:Decomposition and Nutrient Release Characteristics

外文摘要：To analyze the decomposition characteristics of different types of rapeseed straw and determine suitable rapeseed varieties for cultivation in Shandong and Sichuan tobacco-growing areas,as well as for rotation planting with tobacco,two different types of four winter rapeseed varieties were selected as materials.The nylon mesh bag method was employed to analyze the decomposition and nutrient release characteristics of rapeseed straw under indoor simulated field conditions.The results showed that in the first 10 days of cultivation,rapeseed straw decomposed rapidly,with nutrients being released rapidly as well.The final nutrient release rate followed the order K＞N＞P＞C.During the decomposition process,the carbon-to-nitrogen ratio of straw fluctuated but generally showed an increasing trend.The decomposition degree of Chinese cabbage-type rapeseed straw and the release rates of carbon and nitrogen were higher than those of kale-type rapeseed straw,while the potassium release rate was lower than that of kale-type rapeseed straw,and the phosphorus release rate exhibited regional differences.The decomposition degree of rapeseed straw and the release rates of carbon,nitrogen,and phosphorus in Sichuan tobacco-growing areas were higher than those in Shandong tobacco-growing areas,and the potassium release rate was higher than that of Chinese cabbage-type rapeseed straw in Shandong.The decomposition of rapeseed straw significantly increased the content of organic matter,nitrogen,phosphorus,and potassium in the tested soil.However,the degree of enhancement varied among different tobacco-growing areas and types of rapeseed straw.From the perspective of straw return utilization,Chinese cabbage-type rapeseed varieties in both tobacco-growing areas are more suitable for rotation planting with tobacco.

外文关键词：

tobacco-growing areaBrassica rapa L.Brassica napus L.rape strawstraw decompositiondecomposition characteristicsnutrient releasesoil nutrientsrotation plantingsoil improvement

作者：

肖丽霞、张玉琴、刘春菊、谭效磊、凌爱芬、王德权、韩硕、马茹辉、孙延国

展开 >

作者单位：

中国农业科学院烟草研究所,农业农村部烟草生物学与加工重点实验室,山东青岛 266101

山东省威海市农业科学院,山东威海 264200

山东潍坊烟草有限公司,山东潍坊 261061

山东临沂烟草有限公司,山东临沂 276001

四川省烟草公司凉山州公司,四川西昌 615000

展开 >

关键词：

烟区白菜型油菜甘蓝型油菜油菜秸秆秸秆腐解腐解特征养分释放土壤养分轮作种植土壤改良

基金：

中国农科院科技创新工程深化现代科研院所改革任务项目中国烟草总公司山东省公司科技项目中国烟草总公司四川省公司科技项目山东潍坊烟草有限公司科技项目

项目编号：

ASTIP-TRIC-ZD05202208SCYC2019092017-17

出版年：

2024

中国农学通报

中国农学会

中国农学通报

CSTPCD

影响因子：0.891

ISSN：1000-6850

年,卷(期)：2024.40(24)