摘要
【目的】研究骏枣产量与土壤、叶片营养元素的关系,为第二师各团场枣树制定合理的施肥方案和提高产量提供理论依据。【方法】以5-8年骏枣为试材,在新疆巴音郭楞蒙古自治州境内31、33、34、36、37和38团选择代表性高、中、低产枣园18个,分别采集0-20、20-50和50-80 cm土层土壤样品以及外围营养枝中段叶片样品,测定不同产量的骏枣园中土壤和叶片营养元素含量,分析骏枣产量与土壤和叶片矿质元素之间的关系。【结果】不同产量的骏枣园土壤和叶片中铜、铁、锰和锌含量无显著差异。高产园土壤碱解氮、有效磷、速效钾、钙、镁含量显著高于低产园,叶片全氮、全磷、全钾含量也显著高于低产园。土壤碱解氮、有效磷、钙、镁含量与高产枣园呈显著正相关,叶片全氮、钙含量与高产枣园呈显著正相关,其他元素与产量的相关性不显著。【结论】供试骏枣园在实际生产中应重视施用氮、磷肥来提高枣产量。同时也应注重钙肥的补充,对低产园可通过喷施叶面钙肥来提高枣树对钙元素的吸收。
【Objective】The objective of this study is to investigate the relationship among jujube yield,soil nutrient and leaf nutrient in order to provide a theoretical basis for making reasonable fertilization schemes and improving jujube yield in the second Agricultural Production Division.【Method】5- 8 years Ziziphus Jujuba cv. Junzao was used as the testing material. Soil samples from different layers（ 0- 20 cm,20- 50 cm and 50- 80 cm） and leaves of peripheral vegetative branches were collected from 18 high,medium and low yield junzao orchards in 31 th,33 th,34 th,36 th,37 th and 38 th regiments in Bayangol Mongol Autonomous Prefecture of Xinjiang,respectively. 【Result 】There were no significant differences in copper,iron,manganese and zinc content of soil or leaves in all junzao orchards. Soil available nitrogen,available phosphorus,available potassium,calcium and magnesium content were significantly higher in the high- yield orchard than those in the low- yield orchard. Leaf total nitrogen,total phosphorus,total potassium content in the high- yield orchard were significantly higher than those in the low- yield orchard. Soil available nitrogen,available phosphorus,calcium,magnesium,leaf total nitrogen,and leaf calcium content were significantly positively correlated with high- yield junzao,and other elements showed no significant positive correlation with the yield.【Conclusion】In the practical production,the application of nitrogen and phosphorus fertilizer should be enhanced in the tested jujube orchards. At the same time attention should be paid to the calcium supplement,and as for the low yield orchards spraying calcium fertilizer can improve the Ca absorption.
出处
《新疆农业科学》
CAS
CSCD
北大核心
2016年第5期850-856,共7页
Xinjiang Agricultural Sciences
基金
新疆兵团科技支疆计划项目(2014AB002)~~
关键词
骏枣
产量
土壤
叶片
营养元素
Ziziphus Jujuba cv
Junzao
yield
soil
leaf
nutrient element
