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Diagnosis of nutrient composition in fruit crops: Major developments
(2019-11-27)
Early methods of tissue diagnosis opposed the concept of critical nutrient concentrations supported by the laws of the minimum and the optimum to the more complex one of nutrient balances. But this proved to be a futile ...
Unbiased Approach to Diagnose the Nutrient Status of Red Guava (Psidium guajava)
(Int Soc Horticultural Science, 2012-01-01)
Fertilization of guava relies on soil and tissue testing. The interpretation of tissue test is currently conducted by comparing nutrient concentrations or dual ratios with critical values or ranges. The critical value ...
Compositional nutrient diagnosis of corn using the Mahalanobis distance as nutrient imbalance index
(Agricultural Inst Canada, 2009-08-01)
Parent, L. E., Natale, W. and Ziadi, N. 2009. Compositional nutrient diagnosis of corn using the Mahalanobis distance as nutrient imbalance index. Can. J. Soil Sci. 89: 383-390. Compositional nutrient diagnosis (CND) ...
Compositional nutrient diagnosis of corn using the Mahalanobis distance as nutrient imbalance index
(Agricultural Inst Canada, 2009-08-01)
Parent, L. E., Natale, W. and Ziadi, N. 2009. Compositional nutrient diagnosis of corn using the Mahalanobis distance as nutrient imbalance index. Can. J. Soil Sci. 89: 383-390. Compositional nutrient diagnosis (CND) ...
Compositional nutrient diagnosis of corn using the Mahalanobis distance as nutrient imbalance index
(Agricultural Inst Canada, 2014)
Compositional nutrient diagnosis of corn using the Mahalanobis distance as nutrient imbalance index
(2009-08-01)
Compositional nutrient diagnosis (CND) provides a plant nutrient imbalance index (CND - r2) with assumed χ2 distribution. The Mahalanobis distance D2, which detects outliers in compositional data sets, also has a χ2 ...
Phosphorus Over-Fertilization and Nutrient Misbalance of Irrigated Tomato Crops in Brazil
(Frontiers Media Sa, 2017-05-19)
Over the past 20 years, the use of center-pivot irrigation has increased tomato (Solanum lycopersicum L.) yields in Brazil from 42 Mg ha(-1) to more than 80 Mg ha(-1). In the absence of field trials to support fertilizer ...
Padrões para avaliação do estado nutricional do tomateiro para indústria
(Universidade Estadual Paulista (Unesp), 2017-09-29)
A avaliação do estado nutricional, a partir da análise foliar, é importante, como complemento à análise química do solo, para a identificação de desequilíbrio nutricional e auxiliar na recomendação de fertilizantes. Tal ...
Diagnosis and management of nutrient constraints in grape
(2019-11-27)
The yield and quality of grapes and by-products are dependent on the soil fertility and nutritional status. Thus, in acid soils and with low natural fertility, applications of acidity correctives and fertilizers are required. ...