Improved Crop Protection
woven polyethylene crop protection covers, have developed a new, super strong GR Pro range.
covers provide an outstanding solution for protecting cherries, grapes, berries, fruit trees, flowers, herbs and vegetables against hail, rain, frost and intensive radiation.
reduced cherry cracking due to effective rain protection using these covers.
we can provide a full turnkey solution of structure and covers for most crops or tailor make cover solutions to existing structures
BIOPAC crop covers have uniquely strong, reinforced edges and elasticized cable connectors that practically eliminate tearing and ripping
The elastic connector and clip system provides constant tension on the covers and also facilitates their easy opening and closing over the crop. Covers can easily be left in situ, bunched closed together till the next season.
- Reduction of tiny grapes in cluster
The grapes develop better when they are better nourished, the number of undeveloped berries is reduced, reducing therefor the cost of cleaning the bunches.
- Agricultural horticultural covers hail rain frost sunburn protection
PRODUCT
Cover made with reinforcements for easy installation.
USE
To advance or delay the harvest in early varieties of grapes, specially seedless.
EFFECTS
- It maintains a high temperature during the night, so it leads to a quicker development of the crops.
- In buds analyzes it has been shown that crops covered , has a high productive potential for the next harvest.
- Also it achieves a high photosynthesis because of its high total light transmission, demonstrated in test results from independent laboratories.
- Improves the quality, weight and diameter of the berries.
CROPS
Table grapes, grown in either arbors or trellises.
ADDED VALUE
- U incorporates reinforcement in the central and lateral fold doubling the already high resistance of the cover, to attach the mooring tie.
- Its extraordinary strength allows a mechanized installation and collection.
- It is very light and its strength is several times stronger that films of Low Density Polyethylene.
- It has UV and aggro-chemical protection with additives formulated and supplied by leading European manufacturers.
1. PRODUCT CHARACTERISTICS
High Density Polyethylene (HDPE) fabric laminated on both sides, with central and lateral reinforcements to facilitate installation and ensure long life.
A. High level of long wave IR blocking.
B. Light diffusion in three levels.
C. Anti-Aggro chemical protection.
A. High level of long wave IR blocking.
During the day. The shortwave IR radiation penetrates through the plastic, heats and accumulates in the mass (earth, water, leaves, trunks, stems, metals, woods, etc.) in the form of long wave IR.
During the night. The long wave IR radiation accumulated in the form of energy in the mass is blocked and retained by the high IR thermal avoiding the thermal inversion and cooling of the plant.
The long-wave IR radiation is reflected in the cover and returns to the plant. Therefore, at night, the leaves and fruits will be warmer than the air, thus avoiding frost damage and condensation and the possible development of cryptogamic diseases.
The higher temperature allows a greater flow of sap and therefore a better and bigger distribution of nutrients that helps to accelerate the vegetative processes and as a consequence, greater precocity.
B. Effect of diffusion of light
In the optical qualities it is possible to emphasize that it has high transmissible light and also transforms the light in diffuse light.
The diffuse light breaks shadows and makes a more even distribution of light. the cover is manufactured with different levels of light diffusion: from very high diffusion of light, to avoid direct radiation damage, medium diffusion for areas with partial cloudiness and low diffusion for very cloudy or misty areas. The diffusion of the total radiation and therefore of the light, distributes it more or less uniformly, avoids the concentration of energy on certain parts of the plant, and reduces heat damage.
C. Protection against Agro chemicals.
the cover has protection against aggro chemicals. Both the HDPE fabric and the laminate layers on both sides, have additives specially developed to protect the plastic against the chemicals used in the cultivation of fresh produce .
Part of the aggro chemicals used in the cultivation , carry sulfur and other corrosive agents. These materials harm and shorten the life of plastics. the cover contains the most modern protectors before these agents to extend their effective life
2.INSTALLATION AND HANDLING
To achieve the desired objectives, the installation must be done on certain dates, it must be maintained for a specific time, and in a specific structure.
a. Dates:
The cover should be installed on the crop after pruning and immediately after the treatment for regulation of growth and sprouting (application of cyanamide, if it is used as a compensation of lack of cold hours).
Depending on the grape varieties, the type of graft and the climate of the plantation, the harvest starts between 90 and 120 days from the day of pruning and application of cyanamide and crop cover.
In the northern hemisphere, the installation dates are during the second fortnight of the month of December and the first fortnight of the month of January.
In the southern hemisphere, it is from mid-June to mid-July. These dates may vary from 30 days earlier to 30 days later, depending on the micro climate of the area, the varieties, and the desired dates of harvest.
For example, so as not to accumulate all the production on the same days, pruning, treatment of cyanamides and coverage with the cover can be staggered.
b. Installation
For the correct functioning of the thermal effect , it is necessary to install it in the form of a tent with gabled roof over the canopy. The distance between the foliage developed and theCOVER, on the sides should be a minimum of 40 cm. to 60 cm, and in the center of the tent 80 cm. to 100 cm.
This distance is essential to allow the light diffusion effect of the cover to avoid excessive heating during the day. If the distance is smaller, the quality of the cover diffusion can be canceled and the crop will heat up excessively.
Despite this distance, on cold winter nights, the cover will continue to block the long wave IR, and will keep the plant and all the mass with a higher temperature than the air.
The cover is manufactured with reinforced sides in which 2 or 3 rings per linear meter are inserted. In areas with strong winds, 3 rings per linear meter are installed, and in zone with weaker winds, 2 rings per linear meter are installed.
For the fixation of the cover in the structure, it is necessary to have elastic connectors that are tied in the rings and in the side wires. These connectors or tubes are fixed to the rings with a definitive knot, and in the wire, with a knot easy to undo, to be able to collect the plastic tent once the campaign is over.
In the center of the cover, there is an area of about 15 cm. with double reinforcing fabric. At the time of installation, you must match this area with the overhead wire, to serve as tissue protection
c. Withdrawal of coverage
In crops where the cover is used to advance the harvest, to improve the quality of the bunch and to reduce the needles, it is advisable to remove the cover when the grapes reach the veraison stage (color change of strong green to light green or turning to color).
From veraison, the coverage no longer advances the date of harvest, nor improves the quality of the cluster, its usefulness is reduced to protector of rains.
To protect from the sun for the next campaign, and not having to remove it completely, it is collected and wrapped in the flap. The flap is made of material with greater protection against UV radiation to ensure long life.
In regions with very cold winds, temporary side protection can be placed. Upon reaching the veraison stadium, the back protections must be removed. picked up and wrapped in its lapel when arriving at the stage of veraison, in Spanish vine arbor in Peru. The same tubes that fixed the cover to the wire, once untied, are the ones that are used to tie the collected cover.
Protection against rain,hail,sunburn,frost,wind for your valuable crops with our Cover
PHOTOS OF INSTALLATIONS
