CAJ | 학술논문

通过大田试验研究生物黑炭添加对茶园土壤理化性状和茶树生长的影响,设置生物黑炭施用量0(CK)、8、16、32、64 t·hm-2 5个水平.结果表明,生物黑炭施用降低茶园土壤容重,提高土壤总孔隙度和毛管孔度,提高土壤田间持水量、饱和含水量和土壤液相比,改善茶园土壤物理性状.与CK相比,施用生物黑炭处理土壤有机碳含量提高29.55%~98.15%,土壤全氮提高 8.33%~26.52%,有效磷提高 13.04%~69.25%,速效钾提高 17.96%~167.88%,提高幅度均随着生物黑炭施用量的增加而增大;而土壤碱解氮含量下降0.97%~11.54%,但处理间差异不显著.施用生物黑炭处理茶叶产量比CK提高3.24%~13.49%,以16 t·hm-2处理效果最好,但处理间差异不显著.施用生物黑炭处理三年茶叶产量平均比CK提高5.44%~17.05%,以16 t·hm-2处理效果最好,但差异不显著.
통과대전시험연구생물흑탄첨가대다완토양이화성상화다수생장적영향,설치생물흑탄시용량0(CK)、8、16、32、64 t·hm-2 5개수평.결과표명,생물흑탄시용강저다완토양용중,제고토양총공극도화모관공도,제고토양전간지수량、포화함수량화토양액상비,개선다완토양물이성상.여CK상비,시용생물흑탄처리토양유궤탄함량제고29.55%~98.15%,토양전담제고 8.33%~26.52%,유효린제고 13.04%~69.25%,속효갑제고 17.96%~167.88%,제고폭도균수착생물흑탄시용량적증가이증대;이토양감해담함량하강0.97%~11.54%,단처리간차이불현저.시용생물흑탄처리다협산량비CK제고3.24%~13.49%,이16 t·hm-2처리효과최호,단처리간차이불현저.시용생물흑탄처리삼년다협산량평균비CK제고5.44%~17.05%,이16 t·hm-2처리효과최호,단차이불현저.
Afield experiment was conducted to study theeffect of biocharapplication on the physiochemicalproperties of the soil andthe production yield of a tea plantation. Five application rates of biochar on the plantation soil were tested, i.e.,0(CK),8,16, 32,64 t·hm-2. All applications were found to reduce thebulk density,increase the total porosity, capillary porosity,field capacity, saturated water content and soil/liquidratio, and improve the physicalproperties of the soil.They increased the organiccarbon content by 29.55%~98.15%, thetotal soil nitrogenby 8.33%~26.52%, theavailable phosphorus by 13.04%~69.25%, and the available potassiumby 17.96%~167.88% in the soil, as compared to CK. And, the more biochar was applied the greater the percentage increase. On the other hand,the application reduced the soilavailable nitrogen content by 0.97%~1.54%, with no significant difference among the treatments. The applications also increased the tea yield by 3.24%~13.49%, with the greatest effect found at the rate of 16t·hm-2. But, no significant differences were observed at different levels of the application. The average tea production in three years with the biochar applications increased by 5.44%~17.05%. Although the 16t·hm-2application rendered the highest yield, there were no significant differences among the treatments.