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Previum, of Codiagro

How to alleviate the problem caused by short and mild winters in deciduous fruit trees

There are many theories that directly blame climate change for the mild and short winters we are having. Others only point to climatic cycles.

Whatever the reason, the warmer temperatures are causing production problems in some growing areas, especially since the ban on the use of hydrogen cyanamide. The result is that the productions are smaller due to tree lacking "rest" and to the low accumulation of starch in the buds; a result of scarce sprouting, which could be reduced by up to 50%.

In the case of grapes for winemaking, the cold requirements of most varieties are higher than those of table grapes, so in the warmer areas there could be decreases in the quality of the wine. One of the most accepted theories is that in order for buds to sprout well and the plant to get enough rest, about 500 hours below 5 °C are needed. This is not happening naturally in most areas.

Fortunately, after the ban on cyanamide, solutions are emerging that could simulate its effect, although in a safe way and without the need for any kind of registration. These are nutritional products that, if applied in the proper way and the right measure, yield reproducible results that are similar to those of cyanamide, but in a much more environmentally-friendly and safer way.

PREVIUM® is the solution that Codiagro has been testing for two consecutive years in stone fruit trees with excellent results, and now in table grapes and pome fruit trees with the same objective.

PREVIUM® treatment on peaches in Murcia

This product is used together with the BREAK 30® activator. Doses and application schedules vary depending on the type of fruit.

In table and winemaking grapes, it should be applied some 40-50 days before the sprouting. For an optimal result, it is recommended to request the advice of Codiagro's technical department.

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