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Effect of the Active Selenium on Properties of Soil Physical and Chemical of Camellia Oleifera Forest

Author: ZhaoJianPing
Tutor: WuLiChao
School: Central South University of Forestry Science and Technology
Course: Soil and Water Conservation and Desertification Combating
Keywords: Active selenium Fertilizer Camellia Soil physical and chemical properties
CLC: S794.4
Type: Master's thesis
Year: 2011
Downloads: 52
Quote: 0
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Abstract

Camellia (Camellia Oleifera Abel), China's southern woody edible oil species, the tea oil containing oleic acid, linoleic acid, palmitic acid and other unsaturated fatty acid content up to 90%, advanced edible oil. Strengthen Camellia forest nutrient management, to help promote Camellia production. This test uses a completely randomized design, design two kinds of fertilizer (soil occurrence foliar spray), each design six treatments, I (CK0), II (CK1), III (CK2), IV ( J1Se1), Ⅴ (J1Se2), Ⅵ (J1Se3), repeated three times. Soil occurrence active selenium element fertilizer research the active selenium yuan fertilizer from Camellia mature forest soil constant element, elements, trace elements and pollution elements content in the mature forest soil properties of the 10-year-old Camellia the impact; soil occurrence combined with foliar application of test methods to explore the active selenium yuan fertilizer from the Camellia fruit quality and yield on the 10-year-old Camellia Camellia quality mature forest. The soil the occurrence test results show: the active selenium element fertilizer can significantly improve the Camellia mature forest soil major elements, which deal with the promotion of Camellia oleifera mature forest soil macronutrients N, V, K the growth effect best, Ⅳ treatment was inferior; Ⅵ processing soil nutrient elements P the Camellia mature forest growth effect the best V followed by treatment; comprehensive analysis of the process V is the best fertilizer to promote the growth of Camellia mature forest soil constant element ratio. The active selenium element fertilizer can significantly improve Camellia mature forest soil in the amount of nutrient element contents in the amount of elements are nutrients required for plant growth. Where V processing to promote Camellia mature forest soil, the amount of nutrient elements Ca, Mg growth effect the IV processing times; IV treatment is to promote the Camellia mature forest soil in the amount of nutritional elements S growth best ratio, V followed by treatment; comprehensive analysis of the process V is the best fertilizer ratio to promote the growth of the Camellia mature forest in the amount of nutrient elements. Content of trace elements in the soil, but it is indispensable nutrients for plant growth. The active selenium element fertilizer can significantly improve Camellia mature forest soil micronutrient content, which promote Camellia mature forest soil micronutrients Cu growth is best, V IV treatment followed by treatment; V deal with the promotion of mature Camellia the soil micronutrients Zn, Mn, Se growth effects of the best handling VI best to promote the effect of Camellia mature forest soil trace elements Fe, V followed by treatment; comprehensive analysis of the process V is to promote the Camellia mature forest soil micronutrients growth ratio of fertilization. Pollution elements in the soil after more than a certain standard pollution on soil fertility, thus reducing soil pollution elements helps to improve soil fertility. Active selenium fertilizer can significantly reduce Camellia mature forest soil pollution element content, by analysis of variance and multiple comparisons V processing Camellia mature forest soil pollution elements Pb, As degradation; pollution elements in the testing ground lower levels of Cd, the active selenium yuan fertilizer needs further study the degradation of soil pollution of Cd. V processing can significantly reduce soil bulk density, improve soil field capacity. Camellia into age forest soil constant element, elements, trace elements and soil pollution elements have reached the level of significance on Comprehensive Evaluation V processing is the best fertilizer ratio of modified Camellia mature forest soil physical and chemical nature. Caused by changes in soil properties may be due to the active selenium element fertilizer to promote microbial activity in the soil, to be confirmed by further studies. V processing is the best fertilizer treatments on field fertilization experiment, this is consistent with the fertilization treatments designed. The following two inferences can be drawn: 1) field fertilization experiment showed that the optimum fertilizer ratio is assumed to IV treatment, excessive fertilizer mix design should further adjust the level of fertilization ratio. 2) Assuming that field fertilization experiment showed that the optimum fertilizer ratio, Ⅵ processing, then the amount of fertilizer mix design is too small, should be added to the amount of fertilizer ratio. The foliar application results show that: because of the differences between each experimental treatment, various measurement indicators and the trends there are some differences, but in general reflect living selenium selenium element can improve the the Camellia quality, the role of the production. Foliar application of selenium, potassium phosphate fertilizer can significantly improve Camellia fruit Nutshell, peel, nuts selenium content, Ⅵ treatment effect; processing VI relative to the pre-processing of tea production yield of 34.03%, in the six treatments promote Camellia yield the best results. On field fertilization experiment VI processing is the best fertilizer treatments, which is not consistent with fertilization treatments designed. Can draw the following inference: the experiment showed that the optimum fertilizer ratio may be due to the amount of fertilizer mix design is too small, Camellia quality and production is not obvious enough, it should also increase the amount of fertilizer mix design continue to test in order to get the best fertilizing ratio. The optimum fertilization may indicate that the test was originally designed too small, should be added to the amount of fertilizer.

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CLC: > Agricultural Sciences > Forestry > Forest tree species > Special use of broad-leaved class > Camellia
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