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PERIODICITY OF EXPOSURE OF HYDROPONIC LETTUCE PLANTS TO NUTRIENT SOLUTION
(Univ Fed Rural Semi-arido-ufersa, 2020-01-01)
A balanced periodicity of the nutrient solution flow is essential for better agronomic performances and low production costs in hydroponic systems. Thus, the objective of this work was to evaluate the effect of periodicity ...
DRIS norms and limiting nutrients in banana cultivation in the South of Ecuador
(2020-01-01)
Foliar analysis is an effective method to diagnose the nutritional status of plants. However, the mineral concentration in foliar tissue has traditionally been evaluated by assessing the activity of each element, without ...
Leaf analysis as diagnostic tool for balanced fertilization in tropical fruits
(2019-11-27)
The nutritional status of fruit trees can be routinely evaluated either indirectly, via soil chemical analysis, or directly, via plant leaf analysis. The usefulness of leaf diagnosis depends on leaf sampling, chemical ...
Criteria for topdressing nitrogen application to common bean using chlorophyll meter
(Empresa Brasil Pesq Agropec, 2017-07-01)
The objective of this work was to establish the diagnostic leaf and the nitrogen sufficiency index (NSI) values most appropriate to estimate N requirement by the 'Perola' common bean (Phaseolus vulgaris), based on chlorophyll ...
Leaf characters of Lavoisiera, Microlicia and Trembleya (Microlicieae, Melastomataceae) and their implications for taxonomy
(2018-06-01)
In Microlicieae taxonomical delimitation of Lavoisiera, Microlicia and Trembleya is problematic. This study aims to fill this gap by identifying leaf characters that are useful for taxonomy of these genera. Species of ...
Critical nitrogen and potassium levels and sufficiency ranges for banana cultivation in Ecuador
(2022-01-01)
Introduction - Banana cultivation plays a fundamental role in Ecuadorian economy. For this reason, aspects such as plant nutrition, particularly nitrogen and potassium, which guarantee high production, are vital for the ...
Critical nitrogen and potassium levels and sufficiency ranges for banana cultivation in Ecuador
(Int Soc Horticultural Science-ishs, 2022-01-01)
Introduction - Banana cultivation plays a fundamental role in Ecuadorian economy. For this reason, aspects such as plant nutrition, particularly nitrogen and potassium, which guarantee high production, are vital for the ...