| Melaleuca alternifolia is a Myrtales plant with high economic value.It is a medicinal and aromatic plant that can produce Tea Tree Oil(TTO)plants,MAPs).It is a medicinal and aromatic plant that can produce Tea Tree Oil(TTO),MAPs).So far,most studies on terpineol-4 type interleaved Melaleuca alternifolia have been the purification and application of tea tree essential oil,and there have been few studies on fertilization to improve the biomass and oil content of terpineol-4 type Interleaved Melaleuca alternifolia.The excellent seedlings of terpineol-4 type Melaleuca alternifolia selected in this study come from Xingtai Biotechnology Co.,Ltd.,Ningyuan County,Hunan Province.Under the physical and chemical properties and biological characteristics of the forest soil,the application of spreading,circulant,and hole Fertilization treatment of 4 kinds of fertilization methods and strip application and 3 kinds of fertilizer formulas(Formula A,Formula B and Formula C)with different nutrient element ratios were used to fertilize the terpineol-4 type intercropping seedlings and try to clarify the differences How does fertilization affect the distribution pattern and oil content of terpineol-4 type Melaleuca alternifolia biomass.The main results are as follows:(1)The effects of different fertilization treatments on the biomass distribution pattern and oil content of Melaleuca alternifolia have significant differences.From the perspective of fertilization treatments,the top three species with the greatest impact are stripe application A Formula,strip application C formula and ring application C formula,in terms of fertilization methods,the order of influence is strip application,hole application,ring application and sprinkling application.From the perspective of fertilization formula,the order of influence is C formula,A formula and B formula.(2)The highest total weight of branches and leaves is the strip application A formula,which is 1.86kg/plant,and the lowest is the application formula A,which is 0.85kg/plant;the effect on the increase of the proportion of lateral branches is strip application and hole application.,Ring application and sprinkling application,in addition to the sprinkling treatment,the other three fertilization methods have a smaller increase in the proportion of lateral branches,and the different fertilizer formulations have a more significant effect on the proportion of lateral branches.The highest oil content is the strip application A formula,which is 1.79%,the lowest is the spread application A formula,which is 1.51%;the highest oil content is the strip application formula,22.42g,and the lowest is the application formula A.The total weight of branches and leaves,the weight of lateral branches and the proportion of lateral branches are significantly correlated with the oil content.(3)Nitrogen fertilization can promote the growth of the aerial parts of Melaleuca alternifolia;fertilizers with a large proportion of nitrogen fertilizer can effectively promote the yield of branches and leaves and the oil content;with an appropriate amount of phosphorus content,the increase in phosphorus content will be significantly increased The yield of branches and leaves,but excessive phosphorus will form phosphorus stress and reduce the yield of branches and leaves.Phosphorus is the main effect on the total weight of branches and leaves and side branches.When the fertilizer contains too much water,it will seriously reduce the oil content.Under the same water content,phosphorus is the main factor affecting the oil content of Melaleuca alternifolia.Phosphorus input should be properly increased to prevent excessive moisture and ensure the proportion of side branches while increasing the oil content. |
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