| Camellia oleifera Abel.is a unique traditional woody oil species in China,widely planted in southern China.Its tea seed oil contains high unsaturated fatty acids and linolenic acid.It is known as "Oriental olive oil" and has high economic value.In order to study the effects of different kinds of fertilization treatments on the yield of Camellia oleifera,this experiment analyzed and studied the chlorophyll content,flowering rate,fruit quality and economic characters of Camellia oleifera at three levels of different amounts of compound fertilizer,biological potassium fertilizer and spraying different concentrations of potassium dihydrogen phosphate.The experimental results are as follows:（1）Effects of different fertilization treatments on flowering rate of Camellia oleifera:The influence of different fertilizer treatments on camellia flowering rate have significant differences,all tests showed that the fertilization scheme of camellia flowering rate all play a role,flowering rate were higher than CK,which deal with four,namely the application of compound fertilizer 200 g/plant,biological potassium fertilize 100 g/plant,potassium dihydrogen phosphate 4 g/plant for Camellia oleifera flowering rate was most evident role in promoting,The flowering rate was 64.69%,which was the highest in the experimental group and 0.53 times higher than CK.The data of treatments 1,treatments 4 and treatments7 showed that when the application amount of N,P and K was consistent,the flowering rate of Camellia oleifera plants could be significantly increased by applying biological potassium fertilizer application.The difference result was treatment 4> treatment 1>treatment 7,indicating that the flowering rate of Camellia oleifera plants increased with the increase of the application amount of biological potassium fertilizer application.（2）The experiment on the effect of different fertilization treatments on the fresh seed yield of Camellia oleifera: The experiment showed that different fertilization treatments could improve the fresh seed yield of Camellia oleifera fruits,but the promotion effect of different fertilization ratio was different.When 280 g/plant of compound fertilizer,100 g/plant of biological potassium fertilizer and 1.3 g/plant of potassium dihydrogen phosphate were applied,the fresh seed rate of Camellia oleifera fruit was the most obvious,and the fresh seed rate was 34.94%,0.17 times higher than CK.In a certain range,the fresh seed rate of Camellia oleifera fruits showed a significant positive correlation with the application amount of biological potash fertilizer,and the fresh seed rate of Camellia oleifera fruits increased with the increase of the application amount of biological potash fertilizer.When the total amount of fertilization exceeded a certain limit,the fresh seed rate of Camellia oleifera fruits would be inhibited,and the "law of diminishing returns" of fertilization appeared.（3）Effects of different fertilization treatments on dry seed yield of Camellia oleifera:Test showed that different fertilizer treatments on the dry seed yield of the effect does not exist significant difference,but it can obviously increase the dry oleifera seed yield,including applying compound fertilizer processing 6 is 280 g/plant,biological potassium fertilizer 100 g/plant,potassium dihydrogen phosphate 1.3 g/plant of the fruit of the dry has the most obvious effect on seed yield,dry seed rate was 19.94%,Compared with CK,it is 0.01 times higher.The dry seed rate of Camellia oleifera was affected by K fertilizer and N fertilizer.The dry seed rate of the large proportion of N fertilizer decreased,while the large proportion of K fertilizer was light seed weight,and the dry seed rate was high.（4）Experiments on the effect of different fertilization treatments on seed yield of Camellia oleifera: Different fertilization treatments had no significant effect on the seed germination rate of dry seeds of Camellia oleifera,but could significantly improve the seed germination rate of dry seeds of Camellia oleifera.In treatment 4,compound fertilizer of200 g/plant,biological potassium fertilizer of 100 g/plant,potassium dihydrogen phosphate of 4 g/plant and treatment 6,compound fertilizer of 280 g/plant,biological potassium fertilizer of 100 g/plant were applied.Potassium dihydrogen phosphate 1.3 g/plant significantly promoted the dry seed yield of camellia oil fruits.（5）Effects of different fertilization treatments on chlorophyll content of Camellia oleifera leaves: Different fertilizer treatments on oleifera leaf chlorophyll content reached the significant level,the influence of fertilization amount and chlorophyll content were positively correlated relationship,with the increase of fertilization amount,also gradually increased,chlorophyll content in plant leaf 280 g/plant in the mixed application of compound fertilizer,giant microbial potash 100 g/plant,potassium dihydrogen phosphate is 1.3 g/plant,The chlorophyll content in Camellia oleifera leaves reached the maximum value.The effects of N,P and K fertilization on chlorophyll content of Camellia oleifera leaves were in the order of N>K>P.In conclusion,from the three indexes of fresh seed yield,dry seed yield,chlorophyll content and flowering rate of different treatments,treatment 4（compound fertilizer 200 g/plant + biological potassium fertilizer 100 g/ plant + potassium dihydrogen phosphate 4 g/plant）and treatment 6（compound fertilizer 280 g/ plant + biological potassium fertilizer100 g/ plant + potassium dihydrogen phosphate 1.3 g/ plant）are the best,which can be popularized and applied in the high and stable yield of Camellia oleifera production. |
