Agronomic Characteristics of Lettuce Grown with Monoammonium Phosphate in Sandy Soil
| Autor: | André Luiz Carvalho Caputo, Valdemar Faquin, Eduardo Bucsan Emrich, Leandro dos Santos Soares, Wantuir Filipe Teixeira Chagas, Marco Túlio de Paiva Silveira, Douglas Ramos Guelfi, André Baldansi Andrade |
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| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
biology Phosphorus food and beverages Soil Science chemistry.chemical_element Lactuca 04 agricultural and veterinary sciences Phosphate biology.organism_classification 01 natural sciences Crop chemistry.chemical_compound Human fertilization chemistry Agronomy Shoot 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Agronomy and Crop Science Plant nutrition Phosphorus pentoxide 010606 plant biology & botany |
| Zdroj: | Communications in Soil Science and Plant Analysis. 48:1520-1527 |
| ISSN: | 1532-2416 0010-3624 |
| Popis: | Information related to phosphate fertilization and coated phosphate fertilizer in lettuce (Lactuca sativa L.) is scarce. Thus, this study was carried out to evaluate the agronomic efficiency, production, and nutritional characteristics of coated monoammonium phosphate (MAP) in two subsequent crops with lettuce cv. Solaris. The experimental design was completely randomized (2 x 5 factorial experiment): two sources of phosphorus (P) (MAP and coated MAP), five applications (0; 75; 150; 300; and 600 mg phosphorus pentoxide (P2O5) kg−1) with four replications. In the first crop, there was a greater accumulation of P in plants shoot with the application of coated MAP until 150 mg P2O5 kg−1 dose, surpassed by MAP after this dose. On the second crop, fresh mass and the accumulation of P in the leaves were higher than the uncoated MAP. In both crops, the agronomic efficiency of P fertilization decreased with increase in the amount of phosphorus applied in lettuce cultivation. |
| Databáze: | OpenAIRE |
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