摘要
为探讨有机无机肥配施碱性物料对柑橘园土壤结构改良、土壤酸化治理、土壤养分调控及果实品质提升的效果,通过2年田间定位试验,研究了优化施肥套餐对柑橘园土壤和树体的影响。结果表明:与农户常规施肥相比,4个土壤改良套餐处理均能显著改善柑橘园土壤结构,土壤硬度降低了10.45%~42.61%,土壤容重降低了4.83%~23.78%,土壤孔隙度提高了5.79%~28.37%,增加了土壤团聚程度,减轻了土壤酸化现状,土壤有机质含量提高了24.48%~51.10%,提升了土壤肥力;脐橙单果重提高了2.91%~15.40%,维生素C含量提高了1.64%~46.13%,可溶性固形物含量提高了0.94%~17.90%,可滴定酸含量降低了2.70%~22.86%,固酸比提高了5.63%~52.81%。综合评定,T4处理(有机肥+复合肥+土壤调理剂)的改良套餐适宜在劣质低效的柑橘园示范与推广。
The objective of the research was to investigate the effects of organic and inorganic fertilizers combined with alkaline materials on soil structure improvement,soil acidification treatment,soil nutrient regulation and fruit quality improvement.Through two years field experiment,the effect of optimal fertilization package on soil and tree body of citrus orchard was studied.The results showed that compared with the conventional fertilization of farmers,the four fertilization formula treatments could significantly improve the soil structure of citrus orchard,reducing soil hardness by 10.45%~42.61%,reduce the bulk density by 4.83%~23.78%,increase soil porosity by 5.79%~28.37%,increasing soil agglomeration,reducing soil acidification,and increase the content of soil organic matter by 24.48%~51.10%,improved soil fertility.The single fruit weight of navel orange increased by 2.91%~15.40%,the content of vitamin C increased by 1.64%~46.13%,the content of soluble solids increased by 0.94%~17.90%,the content of titratable acid decreased by 2.70%~22.86%,and the solid acid ratio increased by 5.63%~52.81%.Comprehensive evaluation showed that fertilization treatment 4(Organic fertilizer+compound fertilizer+soil amendments)was suitable for demonstration and popularization of low-quality and low-efficiency citrus orchards.
作者
曹胜
杨水芝
龚碧涯
韩健
廖炜
曾斌
罗赛男
张文
CAO Sheng;YANG Shuizhi;GONG Biya;HAN Jian;LIAO Wei;ZENG Bin;LUO Sainan;ZHANG Wen(Hunan Horticultural Research Institute,Hunan Academy of Agricultural Sciences,Changsha 410125)
出处
《中国果树》
北大核心
2022年第3期44-49,共6页
China Fruits
基金
湖南省重点研发计划(2022NK2015)
湖南省水果产业技术体系项目
湖南省研究生科研创新项目(CX2016B307)。
关键词
柑橘
土壤酸化
土壤结构
果实品质
土壤改良
citrus
soil acidification
soil structure
fruit quality
soil amelioration packages
