【摘要】 试验研究结果表明:烟草叶面喷洒光呼吸调节剂(PR),能够促进烟草生长,明显地增加单株叶面积;改善烟叶内化学成分,提高烟碱和钾的含量,降低氯的含量;能使上中等烟叶比例、单叶重、均价、产值提高,从而显著增加产量,改善烟叶品质,提高经济效益。更多还原

【Abstract】 Foliar application of photorespiration regulators (PR) has obviously positive effects on tobacco growth,——expanding functional leaf area, improving endogenous chemical components, increasing nicotine and potassium contents of fluecured tobacco and decreasing chlorine contents. It also raises the high grade proportion, weight per leaf, total yield,everage price and income per unit area.更多还原