缓释肥一次性施入对酸枣容器苗生长的影响  

Effect of single application of slow-release fertilizer on the growth of sour jujubecontainer seedlings

作　　者：朱英 孙聪 刘平[1,2,3] 刘志国 刘孟军 ZHU Ying;SUN Cong;LIU Ping;LIU Zhiguo;LIU Mengjun(College of Horticulture,Hebei Agricultural University,Baoding,Hebei,071001,China;Research Center of Chinese Jujube,Hebei Agricultural University,Baoding,Hebei,071001,China;Research Institute of Hebei Jujube Industry Technology,Baoding,Hebei,071001,China;Cangzhou Forestry Technology Popularization Station,Cangzhou,Hebei,061001,China)

机构地区：[1]河北农业大学园艺学院,河北保定071001 [2]河北农业大学中国枣研究中心,河北保定071001 [3]河北省枣产业技术研究院,河北保定071001 [4]河北省沧州市林业技术推广站,河北沧州061001

出　　处：《中国南方果树》2024年第5期111-116,123,共7页South China Fruits

基　　金：河北省耐盐碱作物种业科技创新团队(23327501D);国家重点研发课题(2019YFD1001605);中央引导地方科技发展资金项目(206Z6801G)资助。

摘　　要：以酸枣容器苗为试材,通过对比酸枣容器苗在不同缓释肥施用量下的生长状况,筛选最佳缓释肥施用量,为酸枣容器育苗的精准施肥提供技术支持。结果表明,不同缓释肥施用量条件下,酸枣容器苗在生长、生理及叶绿素含量等方面均存在显著性差异,其中年施肥量75 g/袋时,酸枣苗综合表现最好。与CK 1相比,施用缓释肥可显著促进苗木生长,株高增加7.26%~29.53%,地径增加10.28%~20.46%,二次枝数量增加1.06%~26.46%,最长二次枝长度增加1.24%~14.40%。除地径外,其余3个指标均随施肥量增加呈先增后降的趋势,且在年施肥量75 g/袋时,各个指标达最高。与CK 1相比,苗木根系投影面积、根表面积、根平均直径、根体积、总鲜质量、地上部鲜质量、地下部鲜质量分别显著提高了53.81%、53.81%、60.85%、82.08%、50.73%、56.82%、53.12%,且叶片的可溶性糖含量均增加。本研究表明,以缓释肥年施用量75 g/袋为宜。Jujube container seedlings were selected as test material to compare the growth of jujube container seedlings under different slow-release fertilizer application conditions in order to screen the optimal slow-release fertilizer application dosage and provide technical support for accurate fertilization during jujube container seedling cultivation.The results showed that there were significant differences in growth,physiology and chlorophyll content among jujube container seedlings treated with different slow-release fertilizer application dosages,among which the annual application of 75 g/bag slow-release fertilizer showed the best performance.Compared with CK 1,the application of slow-release fertilizer significantly increased the seedling height,diameter,the number of secondary branches and the length of the longest secondary branch by 7.26%-29.53%,10.28%-20.46%,1.06%-26.46% and 1.24%-14.40%,respectively.Except for the seedling diameter,the other above three indicators showed a tendency of increase first and then decrease,and topped at 75 g/bag.Compared with CK 1,the root projected area,root surface area,average root diameter,root volume,total fresh weight,fresh weight of the above part and fresh weight of roots was significantly increased by 53.81%,53.81%,60.85%,82.08%,50.73%,56.82%,and 53.12%,respectively,and soluble sugar content of leaves was also increased.The annual application dosage of 75 g/bag of slow-release fertilizer can be chosen as the recommended amount of application for jujube seedlings during cultivation.

关 键 词：酸枣 容器苗 缓释肥 叶绿素含量 苗高 根系 生长 

分 类 号：S665.1[农业科学—果树学]