不同油茶品系花芽分化期养分吸收规律的研究

选取赣无1、赣447、赣永5、赣无11、赣石83—4、长林3、长林4、长林40等8个油茶品系，研究油茶不同植物器官氮磷钾养分的吸收规律以及品系间的差异性。结果显示：（1）叶片与果实中全N〉全K〉全P，而花芽中全N〉全P〉全K；对不同营养元素而言，全氮含量叶片〉花芽〉果实，而全磷含量花芽〉叶片〉果实，全钾含量则是果实〉叶片〉花芽。（2）不同品系间土壤碱解氮含量的差异大于速效钾大于有效磷。（3）叶片养分与土壤养分呈（极）显著正相关，且同一器官间氮、磷、钾养分也呈（极）显著正相关。...

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Published in广东农业科学 Vol. 43; no. 3; pp. 55 - 59
Main Author 王楚天 易世平 钟琳珊 沈晋 罗汉东 孟凡虎 王新新 胡冬南
Format Journal Article
LanguageChinese
Published 江西农业大学林学院,江西 南昌,330045%江西星火农林科技发展有限公司,江西 宜春,336000 2016
Subjects
养分
吸收规律
品系差异
油茶
油茶
吸收规律
养分
品系差异
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Summary:选取赣无1、赣447、赣永5、赣无11、赣石83—4、长林3、长林4、长林40等8个油茶品系，研究油茶不同植物器官氮磷钾养分的吸收规律以及品系间的差异性。结果显示：（1）叶片与果实中全N〉全K〉全P，而花芽中全N〉全P〉全K；对不同营养元素而言，全氮含量叶片〉花芽〉果实，而全磷含量花芽〉叶片〉果实，全钾含量则是果实〉叶片〉花芽。（2）不同品系间土壤碱解氮含量的差异大于速效钾大于有效磷。（3）叶片养分与土壤养分呈（极）显著正相关，且同一器官间氮、磷、钾养分也呈（极）显著正相关。
Bibliography:44-1267/S
Gan 1, Gan 447, Gan Yong 5, Gan 11, Gan Shi 83-4, Chang Lin 3, Chang Lin 4, Chang Lin 40, eight clones of Camellia oleifera were selected, and the regularity of nutrient absorption of N, P and K in different plant organs as well as the differences among the eight clones was studied. The results indicated that the nutrient in leaf and fruit of C. oleifera was N 〉 K 〉 P, and N 〉 P 〉 K in flower bud. Analysis of total nitrogen content showed that leaf 〉 flower bud 〉 fruit; flower bud 〉 leaf 〉 fruit in phosphorus; and fruit 〉 leaf 〉 flower bud in potassium. The difference of soil alkali-hydrolysable nitrogen content was greater than that of available potassium and effective phosphorus among these clones. Obvious significant positive correlation was existed between leaf nutrient and soil nutrient, meanwhile significantly positive correlation was existed among nitrogen, phosphorus and potassium nutrient in different organs.
Camellia oleifera; nutrient; absorption regularity; strain difference
WANG Chu-tian,Y
ISSN:1004-874X