To search the correlation between soil enzyme activities and soil fertility under fertilization conditions, the indexes of soil enzyme, soil chemical property and soil microbes in 3-years Azadirachta indica plantation were detected and analyzed in Yunnan Yuanmou Desert Ecosystem Located Research Station of State Forestry Administration.

1、

Azadirachtin, the most potent insect antifeedant and growth-regulating agent, is extracted from the seed of the neem tree, azadirachta indica A. Juss.

印楝（Azadirachta Indica A.Juss）种仁中含有印楝素A（azadirachtin）等活性成分，对害虫具有显著的拒食作用和生长抑制作用。

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2、

Changes of JHE and MFO Activity in Body of Plutella xylostella under Neem Treating Extraction Azadirachtin from Neem ( Azadirachta indica) Seed Kernels and the Insecticide Effect Research

印楝素作用下小菜蛾体内MFO和JHE活力的变化印楝（Azadirachta indica）种仁中印楝素的提取及其杀虫活性研究

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3、

The index of fertilizing effect of these treatments reached 2.86~ 14.17. The growth of height, and basal diameter of Azadirachta indica young plantation were sensitive to P and N.

施肥处理的肥效指数达到286～1417，树高、胸径生长对P、N肥反应敏感；

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4、

The water physiological characteristics and the mechanism of drought resistance of the 4 provenances of Azadirachta indica introduced from India were studied by analysing the growth and water physiological indices of these trees.

通过对印度引种的4个种源印楝的生长和水分生理指标进行测定分析，比较分析它们的水分生理特性及其抗旱机制。

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5、

In dry-hot river valley, adaptive shade was benefit for photosynthesis capacity and efficiency of Azadirachta indica A.Juss, excessive press could restrict its formal physiological reaction.

在干热河谷区适度的遮阴有利于印楝光合能力及光合效率的提高，而过度的被压则不利于或会限制印楝正常的生理活动。

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6、

Azadirachtin was found in the bark of introduced neem tree ( Azadirachta indica A. Juss) grown in China by TLC examination.

用TLC法测知引入中国种植的印楝树皮中含有印楝素；

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7、

Study on the Extraction, Purification and Pesticide Formulation of Azadirachtin A; Extraction Technique and Content Determination of Total Flavonoids From the Leaves of Azadirachta indica

印楝叶总黄酮的提取工艺研究及含量测定

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8、

Microwave Extraction of Azadirachtin from Neem Seeds Seedling raising and forestation techniques of Azadirachta with provenance Y.

印楝种仁中印楝素微波萃取方法研究对印楝Y。

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9、

Studies on the Secondary Metabolites of Endophytic Fungus Epicoccum sp. Isolated from Azadirachta indica

一株印楝植物内生真菌Epicoccum sp.次生代谢产物的研究

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10、

Growth adaptability study of Azadirachta indica at different elevations of the dry hot valley of yuanmou county of Jinsha River basin

元谋县金沙江干热河谷不同海拔印楝适应性研究

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11、

Investigation of Fruit Maturity Stage of Azadirachta indica Juss. and the Change of Fruit Azadirachtin Content at Different Harvest Time

印楝果实成熟期调查及不同采收期印楝素含量的变化

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12、

Tissue Culture of Azadirachta indica

印楝的组织培养

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13、

Extraction of azadirachtin from the kernel of Azadirachta indica with the smash-and-stir method under normal temperature

室温粉碎搅拌法从印楝种仁中萃取印楝素的研究

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14、

The cytotoxicities of some compounds obtained from Azadirachta indica were evaluated.

并对从印楝中得到的部分化合物进行了生物活性的研究。

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15、

Chemical Composition of Azadirachta indica and Its Bioactivity

印楝的化学成分及其生物活性

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16、

Fertility of the soil was indicated as more critical than moisture supply for growth of Azadirachta indica.

土壤肥力对印楝的生长比水分的供应更重要；

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17、

Callus Induction and Plantlet Regeneration of Stem Segments of Azadirachta indica

印楝茎段愈伤组织诱导及其植株再生

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18、

Study on Sapling Breeding by Cutting and Afforestation of Azadirachta indica

印楝扦插育苗及造林观察

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19、

Establishment of Regeneration System for High Frequency Plantlet of Azadirachta indica A. Juss

印楝（Azadirachta Indica A.）高频植株再生系统的建立

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20、

Development of Technological Equipments Extracting Azadirachta indica Seeds

印楝种籽初制工艺技术装备的研制

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