Results 1 to 10 of about 22,919,819 (258)

(N.P.K) fertilizer application levels in Onion Crops and Using the Diagnosis and Recommendation Integrated System – DRIS [PDF]

مجلة جامعة كركوك للعلوم الزراعية, 2023
Fertilizations is one the efforts done to increase the production and quality of crops. Nitrogen, phosphorus and potassium fertilizers rate used in the production of Onion are excessive, so the essential elements present in the soil can be imbalanced ...
Dilzar Saeed, Alwand Dizayee
doaj   +1 more source

Chemical analyses of flowers and leaves for nutritional diagnoses of coffee trees [PDF]

Ciência Rural, 2021
: The chemical analysis of flowers has been studied for some crops. In coffee trees, the flower tissue analysis could anticipate the nutritional diagnosis. This study aimed to: (i) compare the mineral composition of coffee flowers and leaves; and to (ii)
André Vinicius Zabini, Herminia Emilia Prieto Martinez, Júlio César Lima Neves, Cosme Damião Cruz, Samuel Vasconcelos Valadares   +4 more
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Seasonal Variation of Leaf Ca, Fe, and Mn Concentration in Six Olive Varieties

International Journal of Plant Biology, 2022
Leaf analysis is essential for diagnosing nutritional status and guiding fertilizer application. The present study aimed to investigate the appropriate time for leaf sampling and the effect of genotype on olive nutrition.
Ioanna Manolikaki, Nektaria Digalaki, Georgios Psarras, Constantinos Tzerakis, Chrysi Sergentani, Anastasia Papamanolioudaki, Safiye Tul, Georgios Koubouris   +7 more
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Aplicação de doses de zinco, via solo, na bananeira "Prata Anã" (AAB) irrigada, no norte de Minas Gerais Application of zinc doses via soil to irrigated banana "Prata Anã" (AAB) in northern Minas Gerais, Brazil

Revista Brasileira de Ciência do Solo, 2007
Foi realizado um experimento de campo no município de Nova Porteirinha, no Norte de Minas Gerais, em Latossolo Vermelho-Amarelo distrófico, com os objetivos de avaliar a resposta da bananeira 'Prata Anã' à aplicação de doses de Zn via solo e estimar os ...
Enilson de Barros Silva, Múcio Mágno de Melo Farnezi, Paulo Jorge de Pinho, Maria Geralda Vilela Rodrigues, Janice Guedes de Carvalho   +4 more
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Grape yield and must composition of ‘Cabernet Sauvignon’ grapevines with organic compost and urea fertilization

Revista de Ciências Agroveterinárias, 2018
Urea and organic compost are applied as a nitrogen (N) source in vineyards. The aim of this study was to evaluate the yield, total N content in the leaves and the must composition in grapevines with the application of organic compost and urea.
Gustavo Brunetto, Carlos Alberto Ceretta, George Wellington Bastos de Melo, Alcione Miotto, Paulo Ademar Avelar Ferreira, Rafael da Rosa Couto, Lincon Oliveira Stefanello da Silva, Luana Paula Garlet, Luiza Michelon Somavilla, Adriana Cancian, Vítor Gabriel Ambrosini   +10 more
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The Effect of Different Organic Foliar Fertilization on Physiological and Chemical Characters in Hop (Humulus lupulus L., cv Cascade) Leaves and Cones

Applied Sciences, 2021
Background: Hop cultivation requires an abundant quantity of nutrients to reach higher cone yield and quality. The aim of this work was the evaluation of different fertilization plans to obtain an improvement in product quality. Methods: Foliar analysis,
Margherita Rodolfi, Lorenzo Barbanti, Cristiana Giordano, Massimiliano Rinaldi, Andrea Fabbri, Luca Pretti, Riccardo Casolari, Deborah Beghé, Raffaella Petruccelli, Tommaso Ganino   +9 more
doaj   +1 more source

Influência de nitrogênio e potássio, via fertirrigação, em atributos do solo, níveis críticos foliares e produção do coqueiro-anão Influence of N and K applied by fertirrigation on soil properties, critical leaf levels and yield of dwarf coconut

Revista Brasileira de Ciência do Solo, 2008
O plantio de coqueiro-anão irrigado, com o objetivo de produzir coco para aproveitamento de água, tem se expandido muito no Brasil. As maiores produtividades, obtidas sob irrigação, influenciam nas quantidades de N e de K requeridas pela planta, o ...
Lafayette Franco Sobral, Luis Carlos Nogueira   +1 more
doaj   +1 more source

Desenvolvimento de normas DRIS e CND e avaliação do estado nutricional da cultura do algodoeiro Development of dris and CND norms and evaluation of nutritional status of cotton

Revista Brasileira de Ciência do Solo, 2010
Entre os vários métodos de avaliação do estado nutricional das plantas, encontram-se o DRIS e o CND, os quais têm como objetivo, entre outros, ordenar a limitação dos nutrientes na planta.
Ademar Pereira Serra, Marlene Estevão Marchetti, Antonio Carlos Tadeu Vitorino, José Oscar Novelino, Marcos Antonio Camacho   +4 more
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Approach to Petiole Sap Nutritional Diagnosis Method by Empirical Model Based on Climatic and Growth Parameters

Agronomy, 2020
The aim of this work is to evaluate the relationship between the nutrient concentration in petiole sap and different agronomic and climatic variables for a tomato crop grown in a greenhouse in Mediterranean conditions. In addition, the persistence of the
Alfonso Llanderal, Pedro García-Caparrós, José Pérez-Alonso, Juana Isabel Contreras, María Luz Segura, Juan Reca, María Teresa Lao   +6 more
doaj   +1 more source

Zinc Variability in Pecan Orchards: Implications for Leaf Sampling and Nutrient Recommendations

HortScience, 2022
Analysis of composite pecan leaf samples typically used to determine need for nutrient applications does not account for variability among trees in the sampled area.
Cyrus A. Smith, Dawn VanLeeuwen, Richard J. Heerema, Joshua D. Sherman, Mary J. Comeau, James L. Walworth   +5 more
doaj   +1 more source