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- Title
Influence of different doses and sources of potassium fertilizer on zucchini squash production.
- Authors
Leite de Souza, André Luís; Pereira de Oliveira, Ademar; Rodrigues da Silva, Luiz Daniel; Soares do Nascimento, Izaias Romario; Ferreira de Lima Cruz, José Manoel; da Silva Rodrigues, Edileide Natália; Machado de Oliveira, Gemerson
- Abstract
Potassium is an essential nutrient for the physiological and biochemical activities of a plant. Therefore, an adequate dose and source of this nutrient can increase zucchini squash production. This study aimed to evaluate the yield response of the zucchini squash cultivar 'Caserta' to different doses and sources of potassium. The experiment was conducted under field conditions in a completely randomized block experimental design in a 6 × 2 factorial scheme, with six K2O doses (0, 50, 100, 150, 200, and 250 kg ha-1) and two sources (potassium chloride and potassium sulfate), with four replicates. Fruit mass, fruit length, number of fruits per plant, and total and marketable fruit yields were evaluated. Fertilization with potassium sulfate and chloride sources increased fruit length and the number of fruits per plant. Potassium (K2O) fertilization using potassium sulfate resulted in higher mass and total fruit yield. K2O doses of 108.41 and 130.78 kg ha-1 in the potassium chloride and sulfate sources, respectively, provided the maximum marketable yield of fruits, at 22.84 and 27.0 t ha-1, respectively. Doses of 108.41 kg ha-1 of potassium chloride and 130.78 kg ha-1 of potassium sulfate are recommended for a better commercial yield, with potassium sulfate being the best recommendation.
- Subjects
POTASSIUM fertilizers; ZUCCHINI; FRUIT yield; POTASSIUM sulfate; CUCURBITA pepo; SQUASHES; ESSENTIAL nutrients; POTASSIUM chloride; POTASSIUM
- Publication
Comunicata Scientiae, 2023, Vol 14, p1
- ISSN
2176-9079
- Publication type
Article
- DOI
10.14295/CS.v14.3931