Results 81 to 90 of about 1,723 (186)

Beaufils ranges to assess the cotton nutrient status in the southern region of Mato Grosso

open access: yesRevista Brasileira de Ciência do Solo, 2012
The relationships between nutrient contents and indices of the Diagnosis and Recommendation Integrated System (DRIS) are a useful basis to determine appropriate ranges for the interpretation of leaf nutrient contents.
Ademar Pereira Serra   +3 more
doaj   +1 more source

Foliar diagnosis of common arrowroot propagated by different forms and fertilized with biofertilizer

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental
ABSTRACT Arrowroot (Maranta arundinaceae) is a unconventional food plant (UFP) that has relevant nutritional properties. However, few studies on the species regarding its forms of propagation and its nutrition have been performed. In parallel, biofertilizer provides nutrients and stimulates the development of species, as it promotes improvements in ...
Ana K. B. Lima   +9 more
openaire   +2 more sources

Foliar diagnosis in sugar cane: VI - effect of rainfall on the foliar N, P and K of the plant cane

open access: yes, 1982
By using data collected from the literature, it was possible to derive equations which correlate leaf composition with the rainfall in the 9 weeks (two months) before sampling. For each 200 mm of rain there was a variation in P contents from 0,016 to 0.034% (depending on the type of soil); in the case of K the variation was 0.071%.
Malavolta, E., Carvalho, J. Guedes de
openaire   +1 more source

Nutritional diagnosis of soursop according to the Kenworthy balance index and deviation from optimum percentage, Nayarit, Mexico

open access: yesAgroindustrial Science
Soursop is a tropical fruit of economic importance in Mexico, however, there is scarce research on its nutrition. The aim of this study was to evaluate the foliar nutrient concentration in the vegetative state and to compare the nutritional diagnosis ...
Juan Diego García-Paredes   +5 more
doaj   +1 more source

Presymptomatic Leaf Reflectance of Fusarium virguliforme-Infected Soybean Plants in Greenhouse Conditions

open access: yesPhytoFrontiers
Sudden death syndrome of soybean is caused by a soilborne pathogen, Fusarium virguliforme. Prior to visible foliar symptoms, a destructive technique can be carried out to diagnose root infection.
Mariama T. Brown   +3 more
doaj   +1 more source

Critical ranges for leaf nitrogen and potassium levels in coffee fertigated at the production phase1

open access: yesRevista Ciência Agronômica
With the aim of establishing critical ranges for the leaf nitrogen (N) and potassium (K) levels in fertigated coffee crops under production, an experiment was carried out in the experimental area of the Sector for Coffee Cultivation of the Department of ...
Gleice Aparecida de Assis   +4 more
doaj   +1 more source

Amostragem foliar da bananeira 'Prata-Anã 'Prata-Anã' banana foliar sampling

open access: yesRevista Brasileira de Fruticultura, 2010
Para diagnose nutricional da bananeira, é necessário padronizar a amostragem do tecido a ser utilizado, já que a composição mineral varia com a idade da planta, com a folha amostrada, entre as diversas partes da folha, ao que se somam as condições ...
Maria Geralda Vilela Rodrigues   +3 more
doaj  

Liming and foliar diagnosis on saccharine sorghum (Sorghum bicolor L. moench)

open access: yes, 1985
The application effects of five levels of dolomitic limestone (0 - 1,25 - 2,50 - 5,00 and 10,00 kg/ha) were studied in a Typic Haporthox soil. Liming increased sweet sorghum stems ant the highest yield was obtained when the amount of calcium and magnesium, bases in saturation and soil pH value were, respectively, 2,93 meq/100 cm³ , 59% and 5,71. It was
Coutinho, E.L.M.   +3 more
openaire   +1 more source

Home - About - Disclaimer - Privacy