| Through this research in view of liangshan prefecture in SiChuanprovince designation unit arrange field experiment, has studied different kinds oforganic fertilizer for planting tobacco soil and tobacco leaf chemical and physicalproperties, through the experiment selected the most suitable for the growth oftobacco plant fertilizer, namely hunan xiang CDH humic acid organic fertilizer withthe kinds of organic fertilizer for the experiment of the second year, the comparativestudy of organic fertilizer with inorganic fertilizer proportion of different plantingtobacco soil and tobacco leaf chemical and physical properties, the influence of thetest is divided into five: CK: chemical fertilizer; D1:40%organic fertilizer+fertilizer;D2:60%organic fertilizer+fertilizer; D3:80%organic fertilizer+fertilizer; D4:100%pure organic fertilizer. The results are as follows:five kinds of organic fertilizer canaffect soil nutrient in different extent, applied in hunan CDH humic acid organicfertilizer processing can actively promote soil rapidly-available potassium contentincrease, can help to delay the soil alkali-hydrolysable nitrogen content in late fertilitydecline, improve soil maturation available phosphorus content, and stable control ofthe tobacco plant to soil organic matter content in different growth period ofdemand.different organic fertilizer on impact on soil microbial quantity have obviousdifference, the experiment of hunan xiang CDH humic acid organic fertilizertreatment can significantly improve the growth period of tobacco plant rhizospheresoil microorganism quantity, non rhizosphere soil microbial populations.five kinds oforganic fertilizer on impact on the trend of the agronomic traits of tobacco leaves, inwhich hunan xiang CDH humic acid organic fertilizer processing effects on its mostprominent, in the growth period of tobacco plant in different periods of plant height,effective leave leaf number, maximum leaf length, leaf width effects are more obviousthan other treatmentthe organic fertilizer processing most of flue-cured tobacco showed the characteristics of the "qing scent", style strength is strong, smoke longsoft, comfortable aftertaste, excitant small, back to the sweet feeling is better, havingmoderate, soil conditioner and hunan xiang CDH especially the performance of thehumic acid organic fertilizer.To sum up, the hunan xiang CDH humic acid organicfertilizer than other treatment can promote the physical and chemical properties of theplanting tobacco soil and tobacco leaf quality improvement.The influence of different proportion of organic fertilizer on soil nutrients,organic fertilizer will be compared with an increase in the soil alkali-hydrolysablenitrogen accumulation, especially when of n accounted for40%of total fertilizer,organic fertilizer was the most outstanding. Organic fertilizer will help speed up thedecline of soil effective phosphorus and soil late for phosphorus level is relativelylower, can avoid the upper leaf is too thick and affect the quality of tobacco leaf pureorganic fertilizer applied is consistent with the law of tobacco fertilizer. At the earlystages of the birth of tobacco plant, organic fertilizer proportion is40%,60%of thesoil available k decreased quantity is higher, the mature period, the proportion ofhandle (D1) available k decreased for40%of the volume is low, on the stage, mayhelp to slow down the decline of available k in soil.the influence of the ratio offertilizer application, soil bulk density is not the same, the influence of the control ofthe soil unit weight is opposite bigger, other processing low bulk density, anddecreases with the increase of ratio is. Each processing show the group tree of lowmoisture content than other period, and the ratio of organic fertilizer was40%, the soilbulk density, porosity and moisture content is most suitable for the growth of tobaccoplants.compared with the reference of soil, organic fertilizer on soil active organiccarbon adjustment effect is more noticeable, organic fertilizer, inorganic fertilizer,more help to the increase of soil active organic carbon, so as to maintain and improvethe quality of soil carbon library. Organic fertilizer treatment were higher thancontrol’s carbon stock index (CPI). Carbon library activity index (AI) and carbonlibrary activity (A), and then show the carbon management index (CMPI) is also high,feedback out of the soil active organic carbon content is also high, it indicates that thesoil fertilization with organic fertilizer is beneficial to the improvement of the indexof soil carbon library management, and can be seen through this experiment, organicfertilizer was40%, the percentage of soil carbon library management index value isrelative taller.compared with the agronomic characters of the most prominent, andthen the ratio of organic fertilizer was60%,40%,80%, pure organic fertilizer processing fly agronomic traits are relatively at a disadvantage in various aspects, thismay be related to pure organic fertilizer treatment of the disease resistance of tobaccoplant is relatively poor.ratio of organic manure treatment with40%water soluble totalsugar content is higher, has promoting effect to improve the smoking quality oftobacco leaves, means that40%of the ratio of organic fertilizer to improve the watersoluble total sugar tobacco have promote role; Organic fertilizer can positivelyinfluence the tobacco leaf total nitrogen and total alkali content; Pure organic chlorinecontent in upper leaves, at least other processing of tobacco leaf chlorine content hadno obvious change rule.organic and inorganic fertilizer ratio of different flue-curedtobacco most embody the "scent" characteristics, organic fertilizer processing stylestrength strong, smoke long soft, comfortable aftertaste, excitant small, back to thesweet feeling is better, having moderate, with organic fertilizer proportion is40%and40%of the handling performance is particularly prominent.compared to pure organicfertilizer or organic fertilizer and inorganic fertilizer will not improve area yield, purefertilizer area yield is only50.07kg/m~2,666.7through the statistical test, when p=0.05, each processing compared with CK, all showed significant difference, indicatingorganic, inorganic fertilizer and pure organic fertilizer will have significant impact onarea yield. When accounts for80%of the proportion of the fertilizing organic manure,the highest proportion of superior tobacco; When applying pure organic fertilizer,medium has the highest percentage of smoke; Instructions when organic fertilizerratio was40%, the average price of tobacco is relative taller; Organic fertilizer was40%, the percentage MuChanZhi will be relatively high... |
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