Productivity of red-fleshed dragon fruit (Hylocereus polyrhisuz Britton and Rose) as influenced by different levels of phosphorus under Claveria, Northern Mindanao [Philippines] agroecosystem
2019
Gonzaga, A.B.Jr. | Gonzaga, N.R. | Dollen, A.T. | Silverio, B.G.S.
Phosphorus (P) is a nutrient that requires attention, because its deficiency can reduce the development of shoots and roots of crops, knowingly P application is critical factor in dragon fruit production. Red-fleshed dragon fruit is an epiphyte plant of the Cactaceae family also considered as 'fruit crop for the future'. This study was conducted to determine the optimum recommended amount of P nutrient applied to red-fleshed dragon fruit under Claveria, Misamis Oriental [Philippines] agroecosystem. The experiment was laid out in a simple Randomized Complete Block Design with three replications and four treatments namely: T sub 1=N sub 60-P sub 120-K sub 60, T sub 2=N sub 60-P sub 180-K sub 60, T sub 3=N sub 60-P sub 2 sub 40-K sub 60 and T sub 4=N sub 60-P sub 300-K sub 60. Results revealed that application of P (T sub 1) attained heaviest individual fruit weight, fruit size (polar and equatorial), percent edible portion and total soluble solids (0brix). However, application of P (T sub 4) showed highest number of flower emergence, more number of fruits per post, highest fruit yield tha-1 and return of investment. Therefore, T sub 4 (N sub 60-P sub 300-K sub 60) is the most suitable fertilizer rate as positively correlated with higher level of productivity.
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