Name: LUANA MORATI CAMPOS
Type: PhD thesis
Publication date: 12/03/2018
Advisor:

Namesort descending Role
Adelaide de Fatima Santana da Costa Advisor *
ANDRE GUARCONI MARTINS Co-advisor *

Examining board:

Namesort descending Role
Adelaide de Fatima Santana da Costa Advisor *
ANDRE GUARCONI MARTINS Co advisor *
Camilla Rozindo Dias Milanez Internal Examiner *
Diolina Moura Silva Internal Examiner *
Geraldo Rogério Faustini Cuzzuol Internal Alternate *
João Batista Silva Araújo External Examiner *
Luiz Carlos Santos Caetano External Alternate *
Rogério Carvalho Guarçoni External Examiner *

Summary: ABSTRACT
The sectors for the processing of ornamental stones and coffee are relevant to the economy of
Espírito Santo. However, such industrial activities produce tons of waste daily and their reuse
is a way to promote the sustainability of productive processes. The use of these residues in
agriculture as sources of nutrients for plants is a process that requires studies that identify
their influence on plant development and soil attributes. Thus, this work is the product of
three experiments, whose objectives were: 1) To evaluate the growth of maize plants (Zea
mays L.) and leaf chlorophyll index, as well as soil fertility, due to application of increasing
doses of granite processing waste obtained in multi wire saw and two liming levels; 2) To
determine the growth and nutrient content in the aerial parts of maize plants, as well as the
soil fertility, in function of increasing doses of the mix of dry sludge and ash from the
industrial processes of soluble coffee and two liming levels; 3) To establish growth, foliar and
root anatomy, photosynthesis, chlorophyll fluorescence, leaf chlorophyll and total carotenoid
content, soluble carbohydrate content and nutrient concentration of aerial parts of maize
plants, as well as determine the soil fertility characteristics due to the application of a dose of
granite processing waste obtained in multi wire saw and the use of a dose of the mix of dry
sludge and ash from industrial processes of soluble coffee with and without lime. The results
show that both residues used in the experiments, without or with lime, can generally increase
the values of the analyzed variables. In experiments 1 and 2, the application of increasing
doses of the granite and coffee processing waste induced an increase on soil pH and a
reduction on potential acidity (H+Al). In addition, the residues increased the sum of bases and
soil nutrient contents, such as calcium, magnesium, manganese and copper. However, in the
case of the application of granite processing waste, this provided an excessive increase of
copper in the soil. The lime increased soil pH and reduced H+Al. Besides that, higher height,
stem diameter and biomass occurred in relation to the control treatments. However, the
copper content of granite processing waste and the caffeine of coffee processing waste may
have made it impossible to increase these parameters. In the experiment 3, the treatments with
granite processing waste plus simple superphosphate increased the phosphorus concentration
in the soil in relation to the other treatments, while the treatments with coffee processing
waste increased the contents of potassium, calcium and manganese in relation to the other
treatments. The use of granite processing waste plus SS provided, as a rule, higher growth and
nutrient content by mass of dry matter of the aerial part per vessel when compared to the use
10
of coffee processing waste, which, in turn, provided higher values of these parameters in
relation to non-application of waste. The addition of lime tended to increase the values of sum
of bases, cation exchange capacity and base saturation, as well as some nutrients, in relation
to the non-addition of lime. In addition, liming tended to increase pH and reduce H+Al, but
in small magnitude. Generally, the application of both residues allowed the increment of the
anatomical variables, of gas exchanges, chlorophyll a fluorescence, chlorophyll a content and
total soluble carbohydrates when compared to non-application of residues. The granite
processing waste of diamond multi wire saw plus SS can be used at a dose of 10 t ha-1
per
application and the coffee processing waste can be used at 29 t ha-1
, favoring the adequate
initial growth of the maize plants, however, in greater evidence in the case of the use of the
granite processing waste plus SS. Therefore, it can be affirmed that the agricultural use of
these materials is an ecologically correct and economically viable option, which provides
benefits to all parties involved in its generation and disposal.
Keywords: Alternative fertilizer, coffee ash, diamond multi wire saw, dry sludge, growth.

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