High altitude area for research in different periods of flue-cured tobacco production jie membrane fertilizer quantity and the influence of tobacco, chemical fertilizer optimum jie membrane in yunnan province, according to the time the high altitude area baoshan the experiment. Through the analysis, B (40 days jie transplant membrane fertilizer) with good agronomic characters and economic characters and chemical component index, C treatment (50 days jie transplant membrane, and A fertilizer) treatment (30 days jie transplant cucurbita foetidissima passwinter involve) in the film and economic characters agronomic characters in bad in D treatment (don't jie membrane fertilizer). High altitude area will be arranged in transplanting jie membrane fertilizer 40 days, tobacco plants grow well, and high economic efficiency and quality of chemistry.
求采纳
In order to study the high elevation region different time to uncover the membrane to earth up to the flue-cured tobacco output value quantity and the leaf tobacco intrinsic ingredient influence, summarizes uncovers the membrane to earth up the topdressing time best, has carried on this experiment in the Yunnan Province Baoshan high elevation region.Through the analysis discovery, after the B processing (transplants 40 day to uncover membrane to earth up) has the good agronomic characters, the economical character and the chemical composition target, after the C processing (transplants 50 day to uncover membrane to earth up) is next, after but the A processing (transplants 30 day to uncover membrane to earth up) processes in the agronomic characters and economical character aspect difference Yu D (does not uncover membrane to earth up).The high elevation area will uncover the membrane to earth up the arrangement after to transplant 40 day to carry on, a smoke growing trend will be good, simultaneously will have the very high economic efficiency and the suitable chemistry quality.