不同肥料水平对薄壳山核桃生长和生理特性的影响
Effect of Different Fertilization Levels on Growth and Physiological Characteristics of Carya illinoensis
DOI: 10.12677/HJAS.2018.87111, PDF,    科研立项经费支持
作者: 黄正金, 杨海燕, 董珊珊, 吴文龙*, 闾连飞：江苏省中国科学院植物研究所(南京中山植物园)，江苏 南京
关键词: 薄壳山核桃；施肥水平；生长量；生理特性；Carya illinoensis； Fertilization Levels； Growth； Physiological Characteristic
摘要: 为了给薄壳山核桃合理施肥提供理论依据，在露地栽培条件下，对薄壳山核桃嫁接苗波尼品种设置0 g/株(CK)、50 g/株(T1)、75 g/株(T2)、100 g/株(T3)和125 g/株(T4) 5个施肥水平处理，研究不同肥料水平对薄壳山核桃生长和生理特性的影响。结果表明，随着施肥量的增加，薄壳山核桃地径、胸径和株高显著增加，且肥料对株高生长的影响早于对地径、胸径生长的影响；薄壳山核桃叶片中叶绿素a、叶绿素b和总叶绿素含量均呈上升趋势，超氧阴离子产生速率降低，SOD酶活性增加，可溶性蛋白含量逐渐增加。结论认为，波尼品种在T4施肥水平下表现出较高生长量和较旺盛生理活动，即每株每次追肥125 g大量元素水溶复合肥为最佳施肥水平。
Abstract: In order to provide theoretical basis for rational fertilization of Carya illinoensis, an experiment based on fertilization levels was carried out under open-field condition to study the effect of different fertilizer application rates on growth and physiological characteristics of Carya illinoensis. The treatments were designed as follows: 0 g per plant was used as the control (CK); 50 g per plant for treatment T1; 75 g per plant for treatment T2; 100 g per plant for treatment T3 and 125 g per plant for treatment T4. The results show that with the increase of fertilization, the ground diameter, diameter at breast height (DBH) and plant height increased significantly. The effect of fertilizer on plant height was earlier than that on ground diameter and DBH. The content of chlorophyll a, chlorophyll b and total chlorophyll in leaves also showed an increasing tendency. The generation rate of O2•− decreased while the activity of SOD enzyme and the content of soluble protein increased gradually. The results indicated that under the conditions of this experiment, Carya illinoensis showed higher growth and vigorous physiological activity with treatment T4, the best fertilizer amount for the growth of Carya illinoensis was 125 g macro-element water-soluble compound fertilizer per plant.
文章引用：黄正金, 杨海燕, 董珊珊, 吴文龙, 闾连飞. 不同肥料水平对薄壳山核桃生长和生理特性的影响[J]. 农业科学, 2018, 8(7): 751-756. https://doi.org/10.12677/HJAS.2018.87111

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