摘要
“烟丰2号“是新型烟草专用高效叶面肥,含有烟草生长发育必需的营养元素及多种微量元素、稀土等,呈粉末状,易溶于水,能均匀分布于叶表面,有一定的黏着力,抗小雨冲刷,易被叶片吸收。生育期内喷施2次,能改善烟草光合特性:提高净光合速率(28.2％),增大气孔导度(18.8％),降低气孔阻力(20.5％),增加叶绿素含量,增大比叶重,能显著促进叶面积生长,增加产量20％以上,提高烟叶质量,增加香气质及香气量,产值增加30％以上,经济效益显著。
Yanfeng No. 2 is a new specific excellent foliar fertilizer on tobacco. It is composed of some necessary nutrient elements,many microelements,rare-earth elements and so on. It is a powder,easy soluble in water and it is well distributed and adhered on the leaf surface. It can resist to rinse by slight rain and be easily absorbed by leaves. The experiments showed that spray in the growth period for two times can achieve good results, net photosynthetic rate, stomatal conductance, chlorophyll content,and specific leaf weight would increase,but stomatal resistance would decrease. This foliar fertilizer can greatly improve growth of leaf area of tobacco, and it has a sound effect on yield and quality, the yield increased above 20% ,and the output value increased above 30% .
出处
《山地农业生物学报》
2003年第4期287-289,293,共4页
Journal of Mountain Agriculture and Biology
关键词
烟草专用高效叶面肥
烟丰2号
肥效
光合特性
烟叶产量
烟叶质量
tobacco
new foliar fertilizer
Yanfeng No. 2
photosynthetic characters
leaf yield of tobacco
quality of tobacco
