The Guatemalan Sugar Industry implements sustainable practices to maintain soil health

Conservación de suelos - Azúcar de Guatemala

Since 2014, every December 5th, World Soil Day is celebrated, a date proposed by the Food and Agriculture Organization of the United Nations -FAO-. This year it focuses on “Soils, origin of food” with the aim of raising awareness about the importance of soils for food production, while calling for sustainable management that guarantees soil health.

According to the book “Cultivation of sugarcane in Guatemala” by Cengicaña, plants, like sugarcane, require 16 elements called essential elements for their growth and development. Carbon, hydrogen, and oxygen come from water and air; the other 13 nutrients are minerals that are obtained from the soil or are added as fertilizers.

Practices focused on soil conservation

Sustainable soil management has been key to sugar production in Guatemala. The Sugar Industry carries out a set of practices focused on soil and water conservation, including use of green manures, seedbeds in strips, design of areas with soil and water conservation structures (trenches, contour lines, and infiltration wells) and planting of the first third.

Estudio de escorrentía

This set of activities focused on soil health and water conservation, contributes to:

  • Decrease in the use of chemical fertilizers.
  • Increase in organic matter, which means improvement in soil structure, moisture retention and soil biodiversity.
  • Slight increase in yield in sugar production.
  • Reduction of water erosion and surface runoff, which optimizes the infiltration of water that feeds the groundwater table.

The Guatemalan Sugar Industry, with the support of Cengicaña and the ICC, works for the development and implementation of practices for soil conservation and thus promotes a sustainable, more ecological operation and sustainability of nature.

The Guatemalan Sugar Industry reuses waste as organic fertilizer to conserve soil

The Guatemala Sugar Industry has relied on research and science to be more environmentally sustainable for the planting and harvesting of sugarcane. An example of this is the development and implementation of practices for the conservation and sustainable use of soil.

practicas de conservacion de suelosSince 2012, the Sugar Industry has worked hand in hand with the Guatemalan Center for Research and Training of Sugar Cane -Cengicaña- and the Private Institute for Research on Climate Change -ICC- on practices to stop or prevent erosion, conserve soil, and improve their fertility and productivity.

Reuse of waste as organic fertilizer

During the production of sugar, significant amounts of organic waste are generated as byproducts that have a high agronomic value, including filter mud, ash, and vinasse. Cengicaña scientists discovered that applying these byproducts to the soil improves its physical, chemical, and biological properties.

For example, filter mud is a residue from the manufacture of sugar and provides phosphorus, calcium, and nitrogen, among others. It is estimated that each harvest produces more than 750,000 tons of this residue that is used to nourish fields.

Vinasse is a liquid residue from the distillation of alcohol and is mainly made up of water, organic matter and minerals that benefit the soil. Just as ash, mixed with filter mud, is beneficial for acidic soils, which favors greater availability of nutrients for plants and generally improves soil health.

Green fertilizer program

Crotalaria flowerJust as they use organic fertilizers, the Sugar Industry also uses green fertilizers, an ecological measure of planting legume plants that provide the soil with nitrogen for nutrition in an ecological and environmentally friendly way.

When legumes are mixed with the soil, they provide organic matter that improves the texture and structure of the soil and promotes the development of microorganisms that are beneficial to crops.

All these good practices are promoted by Cengicaña with the aim of comprehensively using biological and organic elements that are sustainable with the environment for the cultivation of sugarcane.

The Guatemalan Sugar Industry works hard on Soil conservation practices

practicas de conservacion de suelos

Soil conservation are practices to stop or avoid erosion, conserve the soil, and improve its fertility and productivity and the Guatemalan Sugar Industry is committed to enforce such measures.

The Guatemalan Center for Research and Training of Sugarcane -Cengicaña- published in 1994 the first study of soils in the sugarcane zone and since 2012, it has been working on the subject with the Private Institute for Climate Change Research -ICC- for the development and implementation of practices for the conservation and sustainable use of soils.

Among the practices are:

  • Soil analysis: this is the basic tool to know the properties of the soil and the availability of nutrients and physical and chemical characteristics which are analyzed by sampling the areas, the region’s climate, sun radiation, thermal amplitude, topography, inclination, and risks of erosion among others.
  • Soil conservation structures and use of vegetation are implemented on the sides of the roads.
  • The protection of wetlands, forest areas and natural water courses is promoted.
  • Sowing the appropriate sugarcane that best adapts to each soil, based on its agronomic characteristics, resistance to pests and adaptation to climatic variations.
  • Sugarcane cultivation is renewed every 5 years to maintain its yield, therefore, in some suitable areas this renewal is used to nourish the soil through the Green Fertilizer program of the sugar industry.

Sustainable practices to maintain soil fertility

The application of nutrients is vital to maintain the fertility of the soils and derived from the analysis of the fields, the strategies for their use are determined, among which are:

 Use of green fertilizer

Crotalaria flowerThe Green Fertilizer program of the Guatemalan Sugar Industry is an ecological measure of planting legume plants that provide the soil with nitrogen and thus avoid the use of commercial products. When legumes are mixed with the soil, they provide organic matter that improves the texture and structure of the soil and promotes the development of microorganisms that are beneficial for crops.

Use of organic fertilizers

Organic matter improves the physical, chemical, and biological properties of the soil, favoring a greater availability of nutrients for plants and improving the health of the soil in general.

In the Guatemalan Sugar Industry, significant amounts of organic waste are generated as by-products that have high agronomic value, including filter mud, ash, and vinasse.

    • Filter mud is a residue from the manufacture of sugar and provides the soil with phosphorus, calcium, and nitrogen, among others. It is estimated that each harvest produces more than 750,000 tons of this residue that is used to nourish fields.
    • Vinasse is a liquid residue from the distillation of alcohol and is mainly made up of water, organic matter and minerals that benefit the soil.
    • The ash, mixed with filter cake, is beneficial for soils with acidic Ph.

Rainwater harvesting

Acequia y pozo de filtracion

Rainwater is captured in ditches and wells; this is an agronomic practice that contributes to the recharge of groundwater. This agronomic practice is responsible for the environment, contributes to the recharge of groundwater, to mitigate the erosion of the soil by precipitation and to avoid floods.

 

Guatemala Sugar Industry ForestThe Guatemalan Sugar Industry has 2,507 hectares of natural forests, which are protected and cared for. The reforestation and conservation of forests on the banks of rivers help to recharge water, to conserve soils by avoiding erosion and are also natural barriers that prevent floods and serve as home to species of flora and fauna.

Soil preparation

The soil is prepared for sowing: the objective of this practice is to prepare a good soil base for the optimal development of the plantation.

    • In sandy soils there is minimal tillage to avoid impact on the natural conditions of the soil.
    • In addition, there are minimum tillage or conservation practices to preserve the soil.

Strip cultivation

Crotalaria abono verdeIt is done during each crop renewal, they plant lines with green crops such as legumes alternating with lines of sugar cane, that is done in renewal batches.

The legume incorporates nitrogen and reduces soil erosion caused by water, wind and to make more efficient use of land.

Level curves

Information from drones or satellite images is used to determine the topography or relief of the area so that crops are planted at the same height above sea level.

Rainwater has an easier time seeping into the ground to prevent erosion.

The Guatemalan Sugar Industry works on soil conservation

Acequia y pozo de filtracion

Since 2012, the Guatemalan Sugar Industry has worked hand in hand with the Guatemalan Center for Research and Training of Sugar Cane -Cengicaña- and the Private Institute for Climate Change Research -ICC- in the development and implementation of practices for soil conservation.

Soil conservation is based on those practices that make it possible to stop or avoid erosion, conserve the soil, and improve its fertility and productivity.

Acequia y pozo de filtracion
Rainwater is captured in ditches and wells, this is an agronomic practice that contributes to the recharge of groundwater.

For example, the Guatemalan Sugar Industry in conjunction with the ICC have implemented ditches and wells that help rainwater infiltrate.

This agronomic practice, responsible with the environment, contributes to the recharge of groundwater, to mitigate the erosion of the soil by precipitation and to avoid floods.

Green fertilizer to nourish the soils

Another good practice for soil protection is the green fertilizer program developed by Cengicaña for the use of the sugar sector. This program is an ecological measure of planting legume plants that provide the soil with nitrogen and thus avoid the use of commercial products.

When legumes are mixed with the soil, they contribute organic matter that improves the texture and structure of the soil. In addition, it promotes the development of microorganisms that are beneficial for crops.

The Guatemalan Sugar Industry works on restoration and conservation

The Guatemalan Sugar Industry is committed to a sustainable agriculture that is adaptable to climate change, with that objective supports the conservation and recovery of forests on riverbanks and upper parts of the basins, care of the soils that include green manure and conservation and recovery practices for the ecosystem such as fish farming, among others.

Forest recovery and conservation

In alliance with the Private Institute for Climate Change -ICC-, since 2011 the Guatemalan Sugar Industry has contributed to the recovery and conservation of forests by planting more than 5.9 million trees in the upper basin and riverbanks that flow into the South of Guatemala.

As part of this effort, 284 hectares of land have been reforested on the banks of the rivers of the South of the country alone, equivalent to 400 football fields, creating gallery forests and biological corridors.

These forests on the banks of rivers help to recharge water, to conserve soils by avoiding erosion and are also natural barriers that prevent floods, while they are home to species of flora and fauna.

In addition, the Guatemalan Sugar Industry has 2,507 hectares of natural forests, which are protected and cared for, and are part of the agro-landscape of the South of Guatemala and benefit the conservation of biological diversity.

Soil conservation

Since 2012, the Guatemalan Sugar Industry has worked hand in hand with the Guatemalan Center for Research and Training of Sugar Cane -Cengicaña- and the ICC in the development and implementation of practices for soil conservation.

One of these important practices is the plowing or the disposition of the land for the cultivation of sugarcane, so that it can better absorb water and nutrients, which preserves fertility and prevents erosion and flooding.

Legumes at Ingenio La Union

In addition, the Sugar Industry has implemented green manure through the sowing of legume plants that return nitrogen to the soil naturally. Sugarcane cultivation is renewed every 5 years to maintain its yield, so that, in the ideal areas, this renewal is used to rest and nourish the soil with the sowing of a legume that takes between 6 and 8 months in the field.

Legumes are the only group of plants that can capture nitrogen from the air and incorporate it into their body. When they are mixed with the soil, they contribute organic matter that improves the texture and structure of the soil. In addition, it promotes the proliferation of microorganisms that are beneficial for crops.

Crop rotation also helps in pest control because, by exchanging the cane for legumes, the life cycle of the insects that feed on the sugar cane is broken.

Release of native fish into rivers

Another program implemented by the refineries is to enrich the fauna in the rivers. This activity called “stocking fish” aims to increase the population of native species in the rivers of the South of Guatemala. The Sugar Industry, with the support of the ICC, has released around 50,000 fingerlings or small fish into the rivers.