Articles
Effect of the EFirriga Nutrirrigation method on the root system of citrus plants with and without severe HLB symptoms
Article number
1448_57
Pages
457 – 462
Language
English
Abstract
Healthy and abundant fibrous roots provide plants with productive capacity and health, in addition to maintaining very important interactions with beneficial microorganisms that help in their growth and development through their exudates.
In a 15-year-old citrus orchard, in a region with a high incidence of HLB, of the ‘Pera-Rio’ cultivar and Raugpur lime rootstock, 20 visually healthy plants (Healthy) and 20 plants visually with a high incidence of HLB (HLB) were separated.
The orchard was irrigated using a drip system and through the EFirrriga Nutrirrigation methodology, to supply nutrients, organic and biological substances, for two and a half years.
Using a steel cylinder with a diameter of 12 cm and a height of 15 cm, samples were taken from 0 to 45 cm deep in the soil, in the interval between plants and 20 cm from the dripper of the dripping tube.
The roots were separated from the soil and roots with diameters equal to or less than 2 mm were used, as they showed great performance in terms of water and nutrient absorption potential.
The results showed that the amount of root in the volume and in the collected location differs at 5% probability using the Tukey test, with plants visually showing a high incidence of HLB having 33% less root than visually healthy plants.
In 2.5 years, plants visually with a high incidence of HLB showed a great improvement in their aerial part, in relation to leaf development, color and production.
The work shows that irrigation and the use of the EFirriga method provides important nutrients for plants in the development of the root system, as the difference in the amount of root was not large compared to other work carried out.
This sampling will be done again next year to confirm the results.
In a 15-year-old citrus orchard, in a region with a high incidence of HLB, of the ‘Pera-Rio’ cultivar and Raugpur lime rootstock, 20 visually healthy plants (Healthy) and 20 plants visually with a high incidence of HLB (HLB) were separated.
The orchard was irrigated using a drip system and through the EFirrriga Nutrirrigation methodology, to supply nutrients, organic and biological substances, for two and a half years.
Using a steel cylinder with a diameter of 12 cm and a height of 15 cm, samples were taken from 0 to 45 cm deep in the soil, in the interval between plants and 20 cm from the dripper of the dripping tube.
The roots were separated from the soil and roots with diameters equal to or less than 2 mm were used, as they showed great performance in terms of water and nutrient absorption potential.
The results showed that the amount of root in the volume and in the collected location differs at 5% probability using the Tukey test, with plants visually showing a high incidence of HLB having 33% less root than visually healthy plants.
In 2.5 years, plants visually with a high incidence of HLB showed a great improvement in their aerial part, in relation to leaf development, color and production.
The work shows that irrigation and the use of the EFirriga method provides important nutrients for plants in the development of the root system, as the difference in the amount of root was not large compared to other work carried out.
This sampling will be done again next year to confirm the results.
Publication
Authors
E. Fachini
Keywords
absorbent roots, fertigation, dripping, fibrous roots, irrigation and greening
Groups involved
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