氨基酸肥与沼液配施对油茶果经济性状的影响

Effects of Combined Application of Amino Acid Fertilizer and Biogas Slurry on Economic Traits of Camellia oleifera Fruits

以8年生“湘林210#”油茶为材料,采用L_(9)(3^(4))正交试验设计研究不同施肥时间、施肥方法下氨基酸肥浓度和沼液浓度对油茶果经济性状的影响,以期为油茶丰产栽培提供液体肥及其施用技术。结果表明:不同浓度氨基酸肥对油茶果鲜籽重、果体积、鲜出籽率有显著影响,对茶籽含水率有极显著影响;不同浓度沼液对单果重、果形指数有显著影响,对鲜出籽率、茶籽含水率、总果重、果皮厚度有极显著影响;果实经济性状指标以处理9(成熟期采用叶喷+根灌600倍氨基酸肥及10倍沼液)较好,茶籽经济性状指标以处理7较好,即在9月以1200倍氨基酸肥和100倍沼液配比进行叶面喷施,能有效促进油茶果生长,降低茶籽含水率。

The effects of fertilization time,fertilization method and concentration of amino acid fertilizer and biogas slurry on economic traits of Camellia oleifera fruits were explored by L_(9)(3^(4))orthogonal experimental design with the eight-year-old“Xianglin 210#”as experimental material,which was expected to provide liquid fertilizer and its application technology for high-yielding cultivation of C.oleifera.The results showed that different concentrations of amino acid fertilizer had significant effects on fresh seed weight,fruit volume and fresh seed yield,and extremely significant effect on seed water content.Different concentrations of biogas slurry had significant effects on single fruit weight and fruit shape index,and extremely significant effects on fresh seed yield,seed water content,total fruit weight and peel thickness.The economic traits of fruits were better under treatment 9(foliar spraying+root irrigation with 600 times amino acid fertilizer and 10 times biogas slurry at maturity).The treatment 7 was better for the economic traits of tea seeds,that was,foliar spraying 1200 times amino acid fertilizer and 100 times diluted biogas slurry in September,which could effectively promote fruit growth and reduce water content of tea seeds.