Study on the Application of Water and Fertilizer Integration of Camellia Oleifera
The quality and output per unit area of Camellia oleifera can be improved through technology of fertigation.Taking the perennial Ganzhou series,'Changlin 4','Changlin 40','Xianglin 21'and'Cenruan 3'Camellia oleifera as the research object,the tree nutrition,fruit quality,yield and soil of Camellia oleifera were analyzed and compared through the comparison between the fertigation and conventional fertilization.The yield and harvest of the fertigation system in Xiaokeng Forest farm showed that the yield increase rate of the main varieties of Camellia oleifera reached 8.18%-421.74%through the fertigation during 2018-2022.In 2022,the yield of'Cenruan.3'and'Xianglin 210'Camellia oleifera varieties increased by 1.31 times and 1.99 times under fertigation respectively,compared with conventional fertilization.Under fertigation,the contents of many elements,medium elements and trace elements were all higher than those under conventional fertilization(except calcium),and the fruit characters(single fruit weight,fresh seed yield and dry seed yield)were generally higher than those under conventional fertilization.The contents of soil chemical elements in surface soil and deep soil were higher than those in conventional fertilization.The fertigation can effectively improve the soil of Camellia oleifera forest,improve tree nutrition,fruit quality and yield,and achieve better economic benefits.