CAJ | 학술논문

选取北方大田黑土，以黄瓜品种津研4号为试材，采用盆栽试验，研究无苗土壤加硅、种苗硅灌根、种苗硅叶面喷施等不同施硅方式对土壤化学性状及土壤酶活性的影响。结果表明：与无苗土壤不加硅对照相比，无苗土壤加硅处理后第20、30天，显著提高了土壤pH值、EC值及土壤脲酶、转化酶活性，显著降低了土壤速效钾含量；与种苗不加硅对照相比，种苗硅灌根处理后第20、30天显著增加了土壤有效磷含量、pH值、EC值及土壤脲酶、转化酶活性，降低或显著降低了土壤有机质和速效钾含量；与种苗不加硅对照相比，种苗硅叶面喷施处理后第20天显著提高了土壤pH值、有效磷含量及土壤脲酶活性，显著降低了土壤有机质含量。综上，不同施硅方式均能在一定程度上影响土壤化学性状和土壤酶活性，硅灌根处理对土壤化学性状和土壤酶活性影响最大，无苗土壤加硅处理对土壤化学性状和土壤酶活性的影响次之，硅叶面喷施对土壤化学性状和土壤酶活性影响最小。
선취북방대전흑토，이황과품충진연4호위시재，채용분재시험，연구무묘토양가규、충묘규관근、충묘규협면분시등불동시규방식대토양화학성상급토양매활성적영향。결과표명：여무묘토양불가규대조상비，무묘토양가규처리후제20、30천，현저제고료토양pH치、EC치급토양뇨매、전화매활성，현저강저료토양속효갑함량；여충묘불가규대조상비，충묘규관근처리후제20、30천현저증가료토양유효린함량、pH치、EC치급토양뇨매、전화매활성，강저혹현저강저료토양유궤질화속효갑함량；여충묘불가규대조상비，충묘규협면분시처리후제20천현저제고료토양pH치、유효린함량급토양뇨매활성，현저강저료토양유궤질함량。종상，불동시규방식균능재일정정도상영향토양화학성상화토양매활성，규관근처리대토양화학성상화토양매활성영향최대，무묘토양가규처리대토양화학성상화토양매활성적영향차지，규협면분시대토양화학성상화토양매활성영향최소。
Black field soil from northern China was chosen,and cucumber‘Jinyan No.4’ was used as testing material. This pot culture experiment studies the effect of different silicon fertilization patterns such as non-seedling soil plus silicon,seedling soil applying silicon at root or spraying silicon at leaf surface, on soil chemical property and soil enzyme activity. The results showed that non-seedling soil plus silicon could significantly increase soil pH value,EC value, soil urease and inverted activity,decrease the content of available potassium significantly 20 days and 30 days after the treatment, and yet had no effect on the contents of available phosphorus, organic matter and available nitrogen. With seedling soil root-applied silicon could significantly increase soil available phosphorus content, pH value, EC value,soil urease and inverted activity,significantly decrease the contents of soil organic matter and available potassium 20 days and 30 days after the treatment. With seedling soil foliar-applied silicon could significantly increase soil pH value and available phosphorus contents and soil urease activity, reduce soil organic matter content 20 days after the treatment. In summary, different application of silicon in a certain extent can affect the soil chemical property and soil enzyme activity. Root-applied silicon can mostly influence soil chemical property and soil enzyme activity. Soil add silicon treatment can affect soil chemical property and soil enzyme activity. Silicon foliar application has minimal impact on soil chemical property and soil enzyme activity.