| Camellia belongs to Theaceae Camellia L. plant, which is the edible tree species ofendemic woody material. Camellia has a very large economic, social and ecologicalbenefits. In this paper Ganwu Series8-year-old Camellia varieties is for the study, usingfive different water irrigation amount on the basis of Camellia balanced fertilization to setthe test program. Adopting the randomized block experiment, analyzes the Camellianutrient dynamics and nutrient allocation rule changes of phosphorus and potassium underdifferent moisture gradient, and has a comprehensive analysis of their relevance to theproduction, makes a clear of dynamic changes of phosphorus and potassium in Camelliasoil, leaves and fruits in the month under different growth, providing a theoretical basis forthe monthly water and nutrient management.（1）Different moisture gradient has not significant effects on soil available phosphorus,but very significant impact on potassium, then significantly affected for two differentmonths, both showed a change in W2-W4"M" type, W1was "N" type, the overall contentis W3> W2> W1> W4> W5, indicating that moderate or below normal soil moisture isconducive to the dissolution and absorption of phosphorus, potassium; Camellia absorptionof soil phosphorus, potassium are greater in July-August September-October. DifferentWater gradient with different months has the same affecting in leaves and soil potassiumand potassium factors, total phosphorus was "slow decline-a slow increase-rapidincrease in" total K was "rapid increase-rapid decline-increased slowly-slow down.",The highest levels of total phosphorus and total potassium are W3, The minimum are W5.Effect of different water gradient with different months of the fruit phosphorus andpotassium elements were significantly, both overall increase after the first fall; differentwater gradients are maximum in October, September, the overall content of totalphosphorus is W5> W4> W3> W2> W1, was a positive linear relationship, totalpotassium on the contrary, was a negative linear relationship; fruit in June-Septemberabsorb more phosphorus nutrients,absorption of potassium more in July-October.（2）Phosphorus, potassium Distribution rules of Camellia Forest under different watergradient was that the content of phosphorus in the soil, leaves, fruit was different monthly,Overall, from May to October, the soil and the leaves were W3maximum absorption ofphosphorus, the largest fruit was W2, followed by W3, the overall absorption of leavesphosphorus was greater than the fruit; The content of Potassium in the soil, leaves andfruits have the same difference in every month, they were significantly different in6,9months. in5-October, the highest soil absorb potassium was W4in overall, W3leaves andfruits were the highest, fruit absorption of potassium was greater than leaves in overall.（3）fruit yield per plant under different water gradient was W4> W3> W2> W1> W5,,W4was the highest,3560.25g/strain, followed by the W3.（4）The soil available phosphorus inAugust, and the leaves total phosphorus inAugust,September have the significant correlation to fruit yield, and the improves of the soil, leafphosphorus in August has improved fruit yield. The reducing of leaves phosphorus inSeptember was in favor of increasing fruit production, increasing the phosphorus in Augustcan increase Camellia production; The correlation between potassium and fruit yield wasnot significant, but there was a certain correlation,can reduce potassium rates in April andincrease potassium in August to increase the yield. |
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