The Status Of The Flue-cured Tobacco And Soil Of Zhaokua Town Of Luliang County And The Research Of Control Technology Of Ion Damage Key Quality Of Flue-cured Tobacco

The study of the Luliang zhaokua town of soil and the corresponding regions of the flue-cured tobacco were surveyed, using Arcgis9.3software analysis draws the distribution characteristics of soil nutrient and inorganic ion in space. According to the previous zhaokua town area of tobacco high content of chloride ion, was carried out to study the water retaining control of chlorine technology, through the design of different ridge, the ridge to collect rain water and improve the water potential of ridge, leaching on the ridge soil, eventually reducing the content of chloride ion, considering the soil temperature rise will chloride belt up, but compared to the normal ridge, was decreased. The main results are as follows:37tobacco samples zhaokua town in Luliang, the average value of total sugar content is25.61%, the highest is two big band East-West to distribution, the lowest content is only a small amount of the distribution in the Northeast; reducing average sugar21.85%, distribution and total sugar is basically the same as the average total nitrogen;1.8%, the highest content of Northeast Distribution in the eastern border area along the southwest, the rest were lower; the average nicotine is2.05%, the highest content in the East, south of a small amount of distribution; average1.93%for potassium, high content is distributed in the southern area, northern large area content is low; the average value of water soluble chloride was0.6%, in addition to a small area was higher, most irregular distribution; sugar nicotine ratio average value is10.73, in the northern part of South, have; nitrogen alkali ratio average value is0.88; the average ratio of potassium to chlorine was3.84.Through the37soil samples from zhaokua town in Luliang, the average value of organic matter was44.27g/kg,1level, content is rich, in addition to the northwest corner is low, in most areas of relatively high; the average total nitrogen was1.69g/kg,2level, abundant in content, in addition to the northwest corner of content is low, most of the area was higher; the average available phosphorus was40.5mg/kg,1level, abundant in content, for the two level phase distribution, is northeast southwest direction; the average value of K as for117.87mg/kg, level3, relatively low, in addition to the northerly direction has low content distribution, most of the area with high content of calcium; average value is1779.22mg/kg, as a very high level, the northeast, central, southwest three high content strip area, Northwest-southeast direction, the rest content low magnesium; average value is291.87mg/kg, the high level, irregularly distributed in the northeast, a middle high content area, rest area was low; average effective copper for1.94mg/kg, as a very high level, the West Content is higher, the eastern,content is low; average effective zinc is1.99mg/kg, for the secondary level, content is low in most areas of the distribution; average effective iron is40.52mg/kg, is the very high level, the northwest corner was the lowest, the highest content in the north south direction belt shaped distribution in the middle of the rest content, medium the average effective; manganese is40.78mg/kg, is the very high level, the lowest content distributed in the western, Eastern medium content distribution, the northeast corner was the highest; average value of water soluble chloride for38.85mg/kg, is higher than the critical value, the northwest corner, the central content of northeast southwest strip, South East of the highest, small area was the lowest and lower than the critical value, the vast majority of content area is higher than the critical value.Different ridge on tobacco plant has different effects on reducing chloride, in addition to the low ridge has no reducing chloride effect, double row concave ridge, high ridge, good treatment effect, compared to the control treatment, the upper leaves were decreased by27.92%,10.81%; the middle leaves were decreased by43.07%,13.85%; the lower leaves were decreased by9.38%,24.2%; double row concave ridge treatment reduced the best effect. Different ridge on tobacco plant has different effects on tobacco quality.Compare with the contrast,double row concave ridge,high ridge can increase partial neutral aroma components,pigment and polyphenol content,but the low ridge has less effect on tobacco quality.