中文摘要：本研究以上海市奉贤区海湾镇大面积推广的大棚草莓为实验材料，分别对生长期初期（开始生长期）、开花期前（现蕾期）和开花期的试材植株进行氮肥、钾肥、磷肥和复合肥四种叶面肥的喷施处理，通过对试材叶面光合速率的记录测量，研究在草莓生长过程中各元素叶面肥最适合的施用时期和对最终结果量的影响。以期为实际以叶面肥处理提高大棚草莓果品产量生产提供理论依据。结果表明：大棚草莓试材中，叶面肥的施用能显著影响草莓的生长发育、叶片光合强度和结果量等。相较对照组，氮肥叶面肥最适宜的施用时间是开始生长期和现蕾期，能相对提高光合速率，从而促进增产，在开花期施用则效果不明显；磷肥叶面肥最适宜的施用时间也是开始生长期和现蕾期，能相对提高光合速率，从而促进增产，在开花期施用影响较小；钾肥叶面肥最适宜的施用时间是开始生长期，能显著提高光合速率，从而促进增产，在现蕾期和开花期施用影响较小；复合叶面肥最适宜的施用时间是现蕾期和开花期，能相对提高光合速率，从而促进增产，在开始生长期施用影响较小。48210

 毕业论文关键词： 草莓；叶面肥；产量；光合速率；

Abstract: Large area to promote this study in Shanghai fengxian haiwan town of trellis strawberry as experiment material, respectively, in the early growth period (start growing period), before the flowering period (budding period and flowering period material plant nitrogen fertilizer, potash fertilizer, phosphate fertilizer and compound fertilizer spraying processing, four kinds of foliar fertilization on material records of leaf photosynthetic rate measurement, research on the growth of strawberry foliar fertilizer is most suited to each element in the process of applying period and affects the quantity of the final result. In order to actually to foliar fertilizer processing to enhance trellis strawberry fruit output provide theoretical basis for production. The results show that the material of trellis strawberry, foliar fertilizer fertilization can significantly affect the growth of strawberry growth and photosynthetic intensity and the quantity, etc. Compared with the control group, nitrogen fertilizer optimum fertilization time growing up is the start and budding stage, can relatively improve photosynthetic rate, so as to increase production, applied at flowering period, the effect is not obvious; Foliar fertilizer optimum phosphate fertilization time is beginning stage and budding stage, can relatively increase the photosynthetic rate, so as to increase production, less effect applied at anthesis; Potash fertilizer is the most appropriate use of time began growing period, can significantly improve photosynthetic rate, so as to increase production, less effect in budding stage and anthesis stage; Compound fertilizer is the most appropriate use of time is a budding period and flowering period, can relatively improve photosynthetic rate, so as to increase production, at the start of the growing use less affected.

Key Words： strawberry；Foliar fertilizer；production；Photosynthetic rate

目  录

第一章 绪论 4

1.1农业生产中叶面肥应用技术分析 4

1.1.1 叶面施肥的优点 4

1.1.2 叶面施肥的作用机理 4

1.1.3 叶面施肥的增产机制 5

1.1.4 叶面施肥的技术要点 5

1.2 草莓生产现况 6

1.2.1 草莓的形态特征及生长习性 6

1.2.2 草莓的主要价值