Phytotechnical parameters and yield of watermelon  plants under different irrigation and nitrogen levels

Pereira, Laércio da Silva; Silva, Everaldo Moreira da; Lacerda, Julian Junio de Jesús; Ratke, Rafael Felippe; Lima, Carlos José Gonçalves de Sousa; Santos, Theuldes Oldenrique da Silva

doi:10.14295/cs.v11i0.3131

Cited by 1 publication

(2 citation statements)

References 20 publications

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“…However, it is known that such an effect may vary with N fertilization method. Pereira et al (2020) clarified that N fertilization affects its availability in soil and fertigation makes it available for plants faster.…”

Section: Resultsmentioning

confidence: 99%

“…Despite the high N demand of apple trees, there is still no fertilization pattern, especially under the new edaphoclimatic conditions, as in the tropical semiarid. It is important to note that N has high dynamics in soil and can be absorbed in both organic and inorganic forms (Pereira et al, 2020), highlighting the relevance of studying the theme.…”

Section: Introductionmentioning

confidence: 99%

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Growing apples in tropical semiarid: N and K fertigation

et al. 2021

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Apple tree has been experimentally grown Brazilian tropical semiarid. In these new regions, fertilizing management research for N and K is crucial to reach apple high yields. Therefore, an experiment was conducted to evaluate the effect of N and K fertilizing on fruit production, leaf chlorophyll and N and K nutritional status of apple cv. ‘Julieta’ grown in Brazilian tropical semiarid. The experimental design used was randomized blocks with treatments disposed in a factorial arrangement (4 x 4) referring to nitrogen doses (30, 60, 90, and 120 g of N plant-1) and potassium doses (30, 60, 90, and 120 g of K2O plant-1), with three replications and three plants in each parcel. ‘Julieta’ apple trees propagated by grafting (with ‘M9 filter and Maruba rootstock) and transplanted in 2013 were used in this study. The following variables were evaluated: i) fruit production (kg plant-1); ii) number of fruits (in a plant); iii) leaf chlorophyll index (‘a’, ‘b’, and total); and iv) leaf N and K concentrations (g kg-1). N and K doses effects depend on the consecutive production cycles of apple cv. ‘Julieta’ grown in tropical semiarid. An adequate N supply is very important for the subsequent production cycle. K fertilization until 120 g plant-1 of K2O is not enough to supply K demand of apple cv. ‘Julieta’ grown in tropical semiarid. In tropical semiarid, 60-90 g plant-1 of N through fertirrigation is enough for ‘Julieta’ apple production.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%