摘要
为了改善土壤质量,研究有机肥替代化肥对辣椒产量及果实中硝酸盐含量的影响,以"北京红3号"加工型辣椒为试验材料,采用大田试验方法,研究常规处理(T1)、1/3有机氮+2/3无机氮(T2)、全部有机氮(T3)、空白处理(T4)对辣椒生长、产量及品质的影响。结果表明,增施有机氮肥减施化肥可不同程度上提高辣椒产量,与常规处理相比,没有减产现象,可提高土壤有机质含量,降低土壤EC值,降低辣椒硝酸盐含量,且有机氮肥全部替代无机氮肥降低硝酸盐含量最多。综上所述,增施有机肥,合理减施氮肥,可以保证作物产量稳定,同时增加土壤有机质含量,有效改善土壤质量。对减轻农业面源污染、改善生态环境、发展可持续农业有积极作用。
In order to improve soil quality,the effect of organic fertilizer on yield and nitrate content in fruits of pepper was studied.Field test method was adopted with"Beijing Hong No.3"processed pepper as test material.The effects of conventional treatment(T1),1/3 organic N+2/3 inorganic N(T2),total organic N(T3)and blank treatment(T4)on the growth,yield and quality of pepper were studied.The results showed that the increase of organic nitrogen fertilizer and the decrease of chemical fertilizer could increase the yield of pepper in different degrees.Compared with the conventional treatment,there was no decrease in yield,the content of soil organic matter could be increased,the soil EC value could be decreased,and the nitrate content of pepper could be decreased.In addition,the replacement of inorganic nitrogen fertilizer with organic nitrogen fertilizer reduced the nitrate content the most.In conclusion,the results showed that increasing organic fertilizer and decreasing nitrogen fertilizer reasonably could ensure stable crop yield,increase soil organic matter content and effectively improve soil quality.It played a positive role in reducing agricultural non-point source pollution,improving ecological environment and developing sustainable agriculture.
作者
张冬梅
高娃
姚慧静
袁鹤
赵晓军
李凯
毕采利
ZHANG Dong-mei;GAO Wa;YAO Hui-jing(Baotou Academy of Agricultural and Animal Husbandry Science,Baotou,Inner Mongolia 014013)
出处
《安徽农业科学》
CAS
2021年第23期182-184,共3页
Journal of Anhui Agricultural Sciences
基金
自治区科技成果转化下划资金项目(NM2019BT021)。
关键词
土壤理化性状
有机氮替代
土壤EC值
硝酸盐
Soil physical and chemical properties
Organic nitrogen substitution
Soil EC value
Nitrate
