The Basis Of Different Biome Flue-cured Tobacco Balanced NPK Fertilization Research

Yibin smoke zone is one of the focus on developing high quality flue-cured tobacco area in sichuan province, has great prospects for development. For planting flue-cured tobacco smoke area wenxin county, yibin city economic characters and chemical properties, in ensuring that the different parts of tobacco plant yield and output value and proportion of superior tobacco in equilibrium under the premise of determined under different ratio of N, P, K processing agronomic characters, economic characters of the flue-cured tobacco and chemical quality of flue-cured tobacco in mature, determine different biome wenxin county suitable fertilization scheme, and combining the yibin plant smoke wenxin county area the actual situation of fertilizer recommendations are given.For elevation of wenxin county plant smoke area span larger problems, the experiment selected two fertility medium testbed for field experiment, Wenxin county respectively DaBa Township (low altitude), xian feng wenxin county township (high altitude), research different biome ratio of NPK fertilizer on flue-cured tobacco agronomic characters, economic characters and chemical properties of influence. The main results were as follows:1.Low altitude area ratio of different N fertilizer flue-cured tobacco in the study of economic characters, A3 (N6) output is higher than other treatments, is 3927.13 yuan/667 m2. Low altitude area ratio of different P fertilizer flue-cured tobacco in the study of economic characters, B2 (P2O57) output is higher than other treatments, is 3616.56 yuan/667 m2. Low altitude area economic characters study, different ratio of K fertilizer flue-cured tobacco C3 (K2O22) output is higher than other treatments, is 3572.63 yuan/667 m2. In low altitude biome wenxin county planting flue-cured tobacco, per 667 m2 into N6kg, P2O57kg, K2O22kg, better economic characters of flue-cured tobacco.2. Low altitude area ratio of different N fertilizer quality of flue-cured tobacco chemistry study, reducing sugar in addition to the A2 (N5), the rest of the process is more than 10%, there is on the high side. Low altitude area ratio of different P fertilizer quality of flue-cured tobacco chemistry study, reducing sugar, except B2 (P2O57), the rest of the process is more than 10%, there is on the high side. Low altitude area ratio of different K fertilizer quality of flue-cured tobacco chemistry study, reducing sugar in addition to C2 (K2O21), the rest of the process is more than 10%, there is on the high side. In low altitude biome wenxin county planting flue-cured tobacco, per 667 m2 into N5kg, P2O57kg, K2O21kg, flue-cured tobacco chemical quality better.3.High altitude area ratio of different N fertilizer flue-cured tobacco in the study of economic characters, D3 (N8) output is higher than other treatments, is 3568.03 yuan/667 m. High altitude area different P fertilizer proportion in the research on economic traits of flue-cured tobacco, E3 (P2O51O) output is higher than other treatments, is 3919.65 yuan/667 m2. High altitude area ratio of different K fertilizer flue-cured tobacco in the study of economic characters, F3 (K2O24) output is higher than other treatments, is 3965.25 yuan/667 m2. In high altitude biome wenxin county planting flue-cured tobacco, per 667 m into N8kg, P2O5lOkg, K2O24kg, better economic characters of flue-cured tobacco.4. High altitude area ratio of different N fertilizer research on economic traits of flue-cured tobacco, the reducing sugar in addition to the D2 (N7), the rest of the process is more than 10%, there is on the high side. High altitude area ratio of different P fertilizer research on economic traits of flue-cured tobacco, the reducing sugar in addition to the E2 (P2O59), the rest of the process is more than 10%, there is on the high side. High altitude area ratio of different K fertilizer research on economic traits of flue-cured tobacco, the reducing sugar in addition to the F2 (K2O23), the rest of the process is more than 10%, there is on the high side. In high altitude biome wenxin county planting flue-cured tobacco, per 667 m2 into N7kg, P2O59kg, K2O23kg, flue-cured tobacco chemical quality better.5. Comprehensive flue-cured tobacco yield and output value, such as the low altitude biome wenxin county planting flue-cured tobacco, per 667 m2 into N6kg, P2O57kg, K2O22kg advisable.6. Comprehensive flue-cured tobacco yield and output value, in the high altitude wenxin county ecological planting flue-cured tobacco, per 667 m2 into N8kg, P2O510kg, K2O24kg advisable.