Mabu Thermas & Resort
Foz do Iguaçu, PR - Brazil

September 18 - 23, 2016

SUSTAINABLE CITRICULTURE:
the role of applied knowledge

Irrigation Symposium

Technology Director of Laborsolo do Brasil

Short Bio

Jose Carlos Vieira de Almeida is agronomist graduated in 1979 at UNESP- Jaboticabal – SP.
MS in Plant Physiology at UFV- Vicosa_MG in 1985 and PhD in Agronomy at UEL-Londrina in 2004 . He was professor of Weed Science and Agriculture at UEL- Londrina since 1981 and retired in 2013.

He is now Technology Director of Laborsolo do Brasil where was responsible for the innovation and adoption of high technology in soil and plant analysis. Developed work for the use and adoption of DRIS diagnosis mainly in sugar cane and soybeans.

SUMMARY OF LECTURE

Nutritional Monitoring of Citrus Pants using DRIS

The citrus plants normally are some years old when they are producing fruits. As they become old, the soils where they were originally planted tend to be poor in relation to the nutrients used in the past and normally it is possible to see some decline in yield and health of the pants as they age. The 3 major macronutrients used in any crop are N, P and K. Only K is a cation and can be evaluated by soil analysis. P and N are anions and it is very difficult to be evaluated by soil analysis. The other secondary macronutrients Ca and Mg are cations , but S is an anion quite impossible to be evaluated in soil samples. In relation to micro nutrients although the major ones are cations as iron, copper, manganese and zinc, it is very difficult to evaluate in soil by the methods used to do it. In the other hand, boron and molibdenium are anions. So the soil analysis to evaluate nutrients in perennial crops is of less importance. The aim of this presentation is to show how DRIS can be used to evaluate anions and micronutrients in leaves samples to check the nutritional status of the plants and present if the nutrients can be supplied by irrigation and spraying.

Sponsors

Diamond Sponsor

bayer
yara
pratts
cutrale

Golden Sponsor

fundecitrus
arysta
citrosuco
itaipu

Silver Sponsor

samarita
cambuhy
integrada
ticofrut
sidel
ldc
mutua
solpack

Bronze Sponsor

agromillora
defensive agrovant
faro agricola
cocamar
metalfor
crb
crea
klabin

Supporters

secretaria parana3
fundacao araucaria3
fapesp
crdf
agrisus
cnpq
capes
ccqc
petrobras

Partners

gtacc
GCONCI - Grupo de Consultores em Citros
atda
Iguassu Convention & Visitors Bureau
londrina convention
embrapa
sgf
afinoa
nova citrus
eecb
ifu
inta
all plant
criattiva
tnt
tnt
agricenter
movix
fae

Organizers

laranja
ccsm
iac
apta
governo sp
fapeagro
iapar
governo pr

Official agency

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