高、低产冬枣园叶片营养元素年动态变化探究

doi:10.19640/j.cnki.jtau.2023.04.003

Journal of Tianjin Agricultural University ›› 2023, Vol. 30 ›› Issue (4): 12-16.doi: 10.19640/j.cnki.jtau.2023.04.003

• Researches and Scientific Notes • Previous Articles Next Articles

Annual dynamic changes of leaf nutrient elements in high and low yield Dongzao orchards

Wen Hao¹, Ren Xiaoqin¹, Yang Jinghui¹, Li Bing², Zhang Chao³, Wang Xing⁴

1. College of Horticulture and Landscape, Tianjin Agricultural University, Tianjin 300392, China;
2. Institute of Resources and Environment, Tianjin Academy of Agricultural Sciences, Tianjin 300384, China;
3. Tianjin Shuofang Green Technology Development Co. Ltd., Tianjin 300384, China;
4. Direct office of Tianjin Highway Bureau, Tianjin 300074, China

Received:2021-09-01 Online:2023-08-31 Published:2023-11-01

Abstract

Abstract: In order to determine the dynamic changes of nutrient element content in leaves of different winter jujube orchards（high-yield orchard and low-yield orchard）in each phenological period, and the dynamic trend of nutrient elements in Tianjin Dongzao in each phenological period was explored. The results showed that the contents of nitrogen and phosphorus in the leaves showed a decreasing trend, and the contents of potassium, calcium, magnesium, iron, manganese, and boron showed an increasing trend. The annual average content of nutrient elements except magnesium and manganese in high-yield orchards was higher than that in low-yield orchards. The research results showed that in the production and management of winter jujube orchards, nutrient can be supplemented by spraying leaves, which provide theoretical basis for the nutritional diagnosis and reasonable fertilization of winter jujube.

Key words: Dongzao, leaf, phenological period, nutrient element, dynamic

CLC Number:

S626

Wen Hao, Ren Xiaoqin, Yang Jinghui, Li Bing, Zhang Chao, Wang Xing. Annual dynamic changes of leaf nutrient elements in high and low yield Dongzao orchards[J]. Journal of Tianjin Agricultural University, 2023, 30(4): 12-16.

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Annual dynamic changes of leaf nutrient elements in high and low yield Dongzao orchards

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