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Effect Of The Active Selenium On Properties Of Soil Physical And Chemical Of Camellia Oleifera Forest

Posted on:2012-09-20Degree:MasterType:Thesis
Country:ChinaCandidate:J P ZhaoFull Text:PDF
GTID:2213330368979043Subject:Soil and Water Conservation and Desertification Control
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Camellia Oleifera Abel is a unique woody oil tree species in Southern China. C.Oleifera which is senior oil contains oleic acid, linoleic acid, palmitic acid and other unsaturated fatty acid up to 90%.C.Oleifera Fertilizer research showed that strengthening the forest nutrient management help to promote C. Oleifera production. There were 2 fertilizing modes (foliage spraying and soil occurrence) and 6 treatments in the completely randomized experimental design. The experiment using soil occurrence active Selenium compound fertilizer method to research the effect of soil physical and chemical properties made by active Selenium compound fertilizer from the study of content of macroelements, secondary elements, microelements and pollution elements in plantation of 10 year old C. Oleifera. To study the effect of quality of 10 year old C. Oleifera made by active Selenium compound fertilizer from the fruit quality and yield of C. Oleifera with the soil occurrence and foliage spraying test method of application.The results of soil occurrence showed that active selenium can significantly improve the content of macroelements in soil of mature forest C. Oleifera. The treatment V largely promote the growth of N, K in soil of mature forest C. Oleifera, IV treatment was followed. Treatment VI largely promote the growth of P in soil, treatment V second. Through comprehensive analysis, treatmentⅤwas the best fertilizer ratio which largely promote the growth of macroelements in the soil.Active selenium can significantly increase the amount secondary elements content which were necessary nutrients for plant growth. The treatment V largely promote the growth of Ca, Mg in soil of mature forest C. Oleifera, treatmentⅣwas followed. Treatment VI largely promote the growth of S in soil, treatment V second. Through comprehensive analysis, treatmentⅤwas the best fertilizer ratio which largely promote the growth of secondary elements in the soil.The content of microelements was small in the soil, it is important for plant growth. Active selenium can significantly improve the content of microelements in soil of mature forest C. Oleifera. TheⅣtreatment largely promote the growth of Cu in soil of mature forest C. Oleifera, treatment V was followed. Treatment V largely promote the growth of Zn, Mn, Se in soil, treatment VI largely promote the growth of Fe in soil, treatment V was followed. Through comprehensive analysis, treatmentⅤwas the best fertilizer ratio which largely promote the growth of microelements in the soil.Pollution elements will cause pollution of soil fertility in the soil after more than a certain level, thus reducing the pollution element content in soil can helps improve soil fertility. Active Selenium compound fertilizer can significantly reduce pollution in soil of mature forest C. Oleifera. Through variance analysis and multiple comparison, obtain the treatment V largely reduce the pollution of pollution elements Pb, As in soil of mature forest C. Oleifera. The pollution elements in the experimental plots Cd content was lower, Active Selenium compound fertilizer degradated soil pollution Cd elements will be studied further.Treatment V can decrease soil bulk density, improve the soil field capacity. Treatment V have reached significant levels in treat macroelements, secondary elements, microelements and pollution elements in soil of mature forest C. Oleifera. Through comprehensive assessment, treatment V was the best fertilizer ratio to promote soil physical and chemical properties in soil of mature forest C. Oleifera. active Selenium promote bacteria physiology activity which cause the change of soil physical and chemical properties, which needs further investigation.The field fertilization experiment showed that treatmentⅤwas the best fertilizer treatment which accord with original design of fertilizer treatment. The 2 deduction from the experiment as follows:1) Suppose that treatment IVwas the best fertilizer ratio, which explain that design values of fertilizer ratio is too high and should adjust fertilizer ratio level.2) Suppose that treatment VIwas the best fertilizer ratio, which explain that design values of fertilizer ratio is too lower and should increase the amount of fertilizer ratio.The results of foliage spraying showed that:there are some differences between the treatments so the trend and measured indicators were different, selenium can improve tea quality and yield in general reflection. Foliage spraying selenium phosphate compound fertilizer can improve the C. Oleifera fruit husk, peel, nuts, selenium content. To the best effectⅥtreatments, the treatmentⅥC. Oleifera production compared to before treatment to increase 34.03%, was the best results in the 6 treatments yield promotion of C. Oleifera processing.The results of the field fertilization experiment showed that treatmentⅥwas the best fertilizer treatment disaccord with original design of fertilizer treatment. The deduction from the experiment as follows:the effect of quality and yield of C.Oleifera was unnoticeable, which may because design values of fertilizer ratio is too lower. The best fertilizer treatment should be obtained by increase the amount of design fertilizer ratio.
Keywords/Search Tags:Active Selenium, Compound fertilizer, Camellia Oleifera forest, Soil physical chemical properties
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