Results 1 to 10 of about 1,723 (186)

Suitability of Utilization of Compositional Nutrient Diagnosis on Diagnosis of Foliar Nutrient in Litchi and Longan

open access: yesGuangdong nongye kexue, 2023
【Objective】Determination of the high-yield production level is the premise of establishing foliar nutrient diagnosis indicators for crop. The problems of compositional nutrient diagnosis (CND) approach in determining the high-yield levels of litchi and ...
Yongcong ZHU   +3 more
doaj   +2 more sources

Foliar nutrient diagnosis in Paeonia ostii: an integrated DRIS-RN-CND approach for the fruit expansion stage [PDF]

open access: yesFrontiers in Plant Science
IntroductionFoliar nutrient diagnosis can facilitate an understanding of plant nutrient status, enabling the implementation of precise fertilization programs.
MingWei Zhu   +9 more
doaj   +2 more sources

A Novel Foliar Color Model for Nitrogen Deficiency Diagnosis of Rubber Trees

open access: yesAASRI Procedia, 2012
Abstract The foliar color pattern under the stress of nitrogen deficiency varies usually in a uniformly distributed way, so it seems reasonable to fabricate a detection index directly using the averaged value or any of the relative form of its color components.
Xiaoming Yao
exaly   +2 more sources

Evaluation of Different Methods and Models for Grass Cereals’ Production Estimation: Case Study in Wheat

open access: yesAgronomy, 2023
Adequate management of agricultural crops requires, among other things, accessible and sufficiently accurate methods for assessing plant nutrition and crop vegetation status and for agricultural production estimation.
Florin Sala, Mihai Valentin Herbei
doaj   +1 more source

Foliar indices for carrot crop using the compositional nutrient diagnosis method

open access: yesPesquisa Agropecuária Tropical, 2017
Carrot has a high yield potential, which requires an adequate and adaptable nutritional management, according to the needs and demands of each crop. Foliar diagnosis is a tool for adjustment and constant improvement of crop fertilization programs.
Frederico Dellano Souza Silva   +4 more
doaj   +2 more sources

FOLIAR DIAGNOSIS: THE INFLUENCE OF THE SOIL ON THE ACTION OF FERTILIZERS [PDF]

open access: yesPlant Physiology, 1939
In an earlier paper (?) reference was made to the fact that no piece of land, however carefully selected for experimental purposes, is absolutely uniform. If the area is divided into equal sections and the sections sub-divided into plots of the same size, the yields from similarly treated duplicate plots planted on the same day with selected ...
W, Thomas, W B, Mack
openaire   +2 more sources

Limitações nutricionais de mudas de mangostãozeiro Nutritional limitations of mangosteen seedlings

open access: yesPesquisa Agropecuária Brasileira, 2006
Este trabalho teve o objetivo de avaliar, por meio da análise foliar, as limitações nutricionais para produção de mudas de mangostãozeiro. Após 12 meses do plantio, em condições de viveiro, com sombreamento no início do desenvolvimento, foi observado ...
Larissa Alexandra Cardoso Moraes   +2 more
doaj   +1 more source

FOLIAR DIAGNOSIS: PRINCIPLES AND PRACTICE [PDF]

open access: yesPlant Physiology, 1937
As a result of the broader view now taken with respect to the problems of soil fertility it is recognized that the conditions required for maximum growth must be sought from the facts of plant physiology as well as from those of soil science. For satisfactory growth a particular soil must satisfy certain conditions with respect to temperature, and to ...
openaire   +2 more sources

Funções e ordem da razão dos nutrientes no estabelecimento de normas DRIS em laranjeira 'Valência' Functions and ratio order of the nutrients at the establishment of DRIS norms in 'Valencia' sweet orange

open access: yesPesquisa Agropecuária Brasileira, 2002
O sistema integrado de diagnose e recomendação DRIS (Diagnosis and Recommendation Integrated System) tem sido uma boa alternativa para a avaliação do estado nutricional de diversas culturas.
Francisco de Assis Alves Mourão Filho   +2 more
doaj   +1 more source

DRIS na avaliação do estado nutricional do arroz irrigado por inundação DRIS to evaluate nutritional status of flooded rice

open access: yesRevista Brasileira de Ciência do Solo, 2009
O alto custo das adubações, a importância da nutrição mineral na produtividade e o nível de tecnologia adotado nas lavouras de arroz irrigado no sul do Brasil tornam relevante a utilização de técnicas de avaliação do estado nutricional, como a diagnose ...
Raquel Hermann Pötter Guindani   +2 more
doaj   +1 more source

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