CAJ | 학술논문

为探明不同添加水平的两种生物炭对小青菜产量、品质及土壤理化性质的影响，为生物炭在蔬菜生产中的有效利用提供依据，开展田间种植试验，在配施氮肥情况下分别添加0、5、10、20、40 t/hm2稻秆炭和竹炭，结果表明，高水平施加稻秆炭和竹炭（20 t/hm2、40 t/hm2）均能显著降低菜地土壤容重，提高土壤pH、有机碳、全氮和速效钾含量，但对土壤有效磷和阳离子交换量未产生显著性影响；两种生物炭对小青菜增产均具有促进作用；当添加量为40 t/hm2时，稻秆炭和竹炭使小青菜维生素C含量有所升高，总糖含量分别升高31.2％和19.5％，硝酸盐含量分别降低15.0％和16.4％，综合效果稻秆炭优于竹炭，而对小青菜粗纤维和蛋白质的作用不明显。施加生物炭有利于增加土壤孔隙度，提升土壤肥力，改善小青菜品质。生物炭可作为土壤改良剂施用于蔬菜，但具体施用量需根据生物炭和蔬菜种类来确定。
위탐명불동첨가수평적량충생물탄대소청채산량、품질급토양이화성질적영향，위생물탄재소채생산중적유효이용제공의거，개전전간충식시험，재배시담비정황하분별첨가0、5、10、20、40 t/hm2도간탄화죽탄，결과표명，고수평시가도간탄화죽탄（20 t/hm2、40 t/hm2）균능현저강저채지토양용중，제고토양pH、유궤탄、전담화속효갑함량，단대토양유효린화양리자교환량미산생현저성영향；량충생물탄대소청채증산균구유촉진작용；당첨가량위40 t/hm2시，도간탄화죽탄사소청채유생소C함량유소승고，총당함량분별승고31.2％화19.5％，초산염함량분별강저15.0％화16.4％，종합효과도간탄우우죽탄，이대소청채조섬유화단백질적작용불명현。시가생물탄유리우증가토양공극도，제승토양비력，개선소청채품질。생물탄가작위토양개량제시용우소채，단구체시용량수근거생물탄화소채충류래학정。
Effects of two kinds of biochar at different application rates on yield and quality of greengrocery ( Brassica chinensis) and soil properties were investigated for providing a scientific basis for the effective utilization of biochar on vegetable production .A field experiment was carried out in a farm with 0 , 5 , 10 , 20 and 40 t/ha of rice straw biochar and bamboo biochar amendment under the condition of nitrogen fertilization . Yield and quality of greengrocery and soil properties were determined after the harvest .The results show that both rice straw biochar application and bamboo biochar application at high rates ( 20 and 40 t/ha ) significantly reduce soil bulk density , and increase soil pH , organic carbon , total nitrogen and available K .However , soil available phosphorus and cation exchange capacity do not show significant differences between the treatments with and without biochar amendment .The yields of greengrocery are improved with biochar amendment . The vitamin C contents of greengrocery are increased , and total sugar contents are significantly increased by 31.2%and 19.5%while nitrate contents are significantly decreased by 15.0%and 16.4%under 40 t/ha of rice straw biochar and bamboo biochar amendment , respectively .The yield and quality of greengrocery and soil fertility can be improved by the application of rice straw biochar and bamboo biochar .Biochar can be applied to vegetables as a kind of soil conditioner . However , the suitable application amounts are determined by the types of biochar and vegetable .