中国农学通报2025，Vol.41Issue(25)：23-30,8.
微生物菌肥对榛树不同器官氮磷化学计量特征及坚果产量的调控机制
Regulation Mechanism of Microbial fertilizer on Nitrogen and Phosphorus Stoichiometric Characteristics in Different Organs of Hazelnut and Nut Yield
摘要
Abstract
To investigate the mechanisms underlying the quality improvement and efficiency enhancement of microbial fertilizer in hazelnut orchards,we examined the content of major nutrients(N,P,K),stoichiometric characteristics of N,P in various organs of hybrid hazelnut(Corylus heterophylla×C.avellana),and nut yield under microbial fertilizer and compound fertilizer treatments.The results showed that the basal diameter and length of branches under microbial fertilizer were significantly higher than those under compound fertilizer(P<0.05).Hazelnut yield per plant(dry weight),single nut weight,and kernel weight under microbial fertilizer increased by 17.1%,2.5%,and 2.6%,respectively(P<0.05).The average kernel diameter and cavity ratio under microbial fertilizer were also higher.Compared to compound chemical fertilizer,microbial fertilizer significantly increased the N(8.1%),P(45.9%),and K(16.1%)contents in the roots,as well as the P(33.3%)and K(15.2%)contents in leaves,P(25.3%)and K(8.1%)contents in branches,and K contents in shells(18.8%)and kernels(4.3%).However,microbial fertilizer reduced the N,P,and K contents in flower by 1.1%,2.3%,and 8.0%,respectively,and reduced the N content in shells and kernels by 31.7%and 15.2%,respectively,along with a 6.9%decrease in kernel P content.Microbial fertilizer significantly decreased the N/P ratio in leaves,branches,and roots,altering the distribution of N and P contents between the aboveground and underground organs.The regression analysis of N and P contents in various organs(flower buds,branches,leaves,roots,kernels,and shells)showed a power function with α=0.512 and β=4.857.These results indicated that microbial fertilizer enhanced nutrient content in vegetative organs(leaves,branches,and roots)of hazelnut trees,regulated the distribution of nutrients among organs,and increased hazelnut yield.关键词
氮磷计量/钾含量/养分分配/坚果性状/出仁率/平欧杂种榛Key words
nitrogen and phosphorus stoichiometry/potassium content/nutrient allocation/nut traits/kernel ratio/Corylus heterophylla×C.avellana分类
农业科技引用本文复制引用
谢斌,宋世琦,王彬,孟凡宇,程莹,李兴鹏,贾淑霞..微生物菌肥对榛树不同器官氮磷化学计量特征及坚果产量的调控机制[J].中国农学通报,2025,41(25):23-30,8.基金项目
吉林省科技发展计划项目"以土壤培肥为主的榛子果林优质高效培育技术研究"(20220202115NC) （20220202115NC）
吉林省中青年科技创新创业卓越人才(团队)项目(创新类)"昆虫病原线虫核心资源发掘及防控榛树害虫"(20230508012RC) （团队）
吉林省杰出青年科技人才项目"生物肥料与榛树细根互作机制及土壤养分高效利用技术研究"(20240602010RC). （20240602010RC）
