| 摘要: |
| 用叶绿康球肥在苹果树上进行大田对比试验,通过田间调查和室内分析,研究了球肥对苹果树叶片的复绿效果、叶内矿质营养元素及叶绿素含量的影响,以及对苹果的增产效果和改善品质的作用等。结果表明,施用叶绿康球肥可使失绿苹果树叶片的活性铁提高8. 7%,叶绿素含量提高18%,叶片失绿程度降低2～3级,果实产量提高48. 1%～78. 6%,并可降低叶片中P,K,Zn,M n的含量,使这些营养元素与铁的拮抗作用减弱,还能改善苹果品质。 |
| 关键词: 叶绿康球肥,石灰性土壤,苹果,缺铁失绿 |
| DOI： |
| 分类号:S661.106,S143.6 |
| 基金项目:陕西省农业发展办公室基金（叶绿康球肥1998 年获国家专利，ZL97 2 39983．6） |
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| Effect of Yelǜkang ball fertilizer on correcting iron deficiency chlorosis in apple trees |
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| Abstract: |
| The field pairing experiments of Yelǜkang ball fertilizerwere conducted in
apple trees. Through field survey and laboratory analysis, the efficiency of recovering
green of the ball fertilizer to tree leaves, effectonm ineral elements and chlorophyll contents in leaves, and the efficiency of increasing yield and improving quality etcwere studied.The obtained results showed:After applying Yelǜkang ball fertilizer, the active iron
in the chlorotic tree leaves increased by 8. 7% and the chlorophyll content of apple tree
increased by 18%; the chlorotic degree of apple trees decreased by 2-3 scales and the
yield per tree increased by 48. 1% -78. 6%. Through applying ball fertilizer, P,K, Zn
and Mn contents in the leaves decreased, and the antagonism between iron and these elements became weaker, thus improving the apple quality. |
| Key words: Yelǜkang ball fertilizer calcareous soil apple iron deficiency chlorosis |
