Study On Nutrition Absorption Law Of "BaXi" And "BaoDao" Banana

Due to the influence of banana panama disease,HaiNan cultivar was transformed from the susceptible "BaXi" banana to the unsusceptible "BaoDao".Most of the fertilization schemes of the farmers' "BaoDao" plantain refer to "BaXi",which has blindness.Under the condition of sufficient fertilizer,this paper USES the analytical method of the plant cold-resistance banana varieties were studied in the region of HaiNan tropical Brazil banana in Manila and the island all parts in the whole stages of NPK calcium magnesium iron manganese zinc accumulation and distribution rules,for HaiNan banana green production,quality,and the efficiency fertilizer to provide theory basis.The results of this study showed that the nutritional characteristics of the two banana varieties were consistent.The content of each element of the two banana varieties was expressed as N>P>K>Ca>Mg>Mn>Fe>Zn.The content of each element and the amount of accumulation were different.The content of nitrogen in the leaves was highest when the "BaXi" banana was harvested,and the content of phosphorus and potassium in the stalks was significantly higher than that of other parts,followed by the fruit stalk.The content of nitrogen and phosphorus in the bulb was the lowest,and the potassium content was the lowest.The accumulation of nitrogen and potassium in the bulb was the largest.There was no significant difference in the nitrogen content of the leaves and fruits in the harvest of "BaoDao"banana,but the nitrogen content of the fruit was slightly higher than that of the leaves.The content of phosphorus and potassium in fruit stalks was significantly higher than that of other parts.The content of nitrogen in leaves and fruit was significantly higher than that of other parts.The accumulation of nitrogen and phosphorus was the highest in the fruit.The total calcium content in the whole growth period of the two banana varieties was about the highest in the leaves and the false stems were second.The content of calcium in leaves,false stems and bulbs increased first-decreased-increased.The growth of the bulb of the two cultivars was increased-decreased and increased.During harvest,the content of magnesium was the most,and the content of magnesium was the least.The zinc content of the root and false stem of two cultivars was basically decreased,and the content of zinc content in leaves was not fluctuant,and the bulb and fruit axis showed a trend of increasing first and then decreasing.Two varieties had the highest iron content in the whole growth period.In the whole growth period,the total amount of manganese in the leaves was the highest,followed by the false stem.The cumulative amount of each element of the two varieties is increasing.The "BaoDao" plantain has a long life cycle and dry matter accumulation,thus the accumulation of the elements in the"BaoDao" banana is greater than that of "BaXi.With the growth of banana,fertilizer application and fertilization time increased,the pH value,conductivity,alkali-free nitrogen and available potassium in banana garden soil decreased.The change of effective phosphorus in banana garden soil was not obvious.Soil pH decreased,affecting soil nutrient content.The fruit quality of"BaXi" was higher than that of "BaoDao".The net fruit yield of "BaXi" is 17.500 ±0.75Kg(the fruit is 6),and the net fruit yield of "BaoDao" is 32.880 + 0.64Kg(the fruit is carded 7)."BaXi" is significantly less than the "BaoDao" plantain.