| In recent years,the calcium nutrient problems in fruit trees aroused people's more and more attention,many fruit trees triggered a series of physiological diseases because of the lack of calcium,and fruit filling calcium can effectively prevent and control these physiological diseases.Study found that the formic acid calcium fertilizer has a certain effect in supplement the crop of calcitonin,prevention the physical disease caused by the prevention of calcium deficiency and improving the quality of the fruit,but the soil calcium formate to peach calcium effect and fruit quality of the research is still rare.However,the research on the peachtree supplement calcium and fruit quality influence by calcium carbonate has not been seen so much.Therefore,in order to provide reference for the use of calcium fertilizer for peach tree scientificly,this paper respectively discusses the effect of these two kinds of calcium fertilizer on the effect of calcium supplement and its effect on the fruit quality by soil applying formic acid calcium fertilizer and calcium nitrate fertilize.The main results were as follows:1 Compared with the control,the single fruit weight and yield of T1,T2 and T3 processed increased by 16.5% and 27.1%,23% and 30.7%,6.7% and 20.6% respectively,which has a significant difference.In the amount of calcium treatment,the difference between the effect of T1(The calcium carbonate fertilizer was 66.5 kg/mu)and T2(The dosage of calcium nitrate fertilizer was 120.7 kg/mu)on fruit single weight and yield was not significant.With a double calcium content,the fruit weight and yield was decline.And compared with the T2 processing,the fruit weight and yield was reduced by 7.9% and 7.9% respectively,the difference is significant.2 In the quality of the fruit,compared to the control,the content of soluble solids in T1,T2 and T3 increased by 19.4%,30.7% and 18.4% respectively,the soluble sugar content increased 23%,31.2% and 18.6% respectively,the vitamin C was up 40.7%,59.3% and 26.9% respectively,the titrating acid content decreased by 26.3%,26.3% and 12.5% respectively,the hardness of the fruit increased by 34.1%,35.5% and 54.3% respectively,the difference between processing is significant.After six days of harvest,the good fruits of T1,T2 and T3 were processed by 18%,27% and 14% respectively.The controlled fruits are basically perishable.Compared with T1,T2 processed the fruit rate by 50% and the difference was significant.3 The calcium content in the tree body organs are greatly influenced by calcium fertilizer,with the passage of time,the processing of calcium content in the leaves was graduallyimprove.And in the second fruit enlargement period,the processing of calcium content in the leaves reached the highest,and in the fruit mature period,after harvested,the calcium content in the leaves gradually reduced,but still higher than the contrast,which has a significant difference.Compared to the comparison,the calcium content of peachtree leaves processed by T1,T2 and T3 increased by 17.4%,24.1% and 11% respectively,the new levels of calcium increased 14.2 %,19.7 % and 7.5 % respectively,the amount of calcium in pulp increased by 34.1%,36% and 22.7% respectively,The calcium content of the skin increased by 38.6%,51.2% and 22.8% respectively,and the difference between processing is significant.This shows that calcium formate has a higher effect on the calcium content of the organs of the tree than the calcium nitrate treatment.With double calcium content,the tree body starts to have a toxic effect,Compared to T2,the levels of calcium in each organ in the tree began to decrease significantly,this suggests that excess calcium fertilizer may affect the absorption of calcium in the tree body. |
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