You know all types of frosts affecting agriculture?
Frost field occur when the soil temperature drops below zero degrees. This is when liquids begin the freezing process.
When it is very cold and begins to form frost on the plantations we say is a white frost. They are not very harmful to the field, in fact, ice may work as antifreeze.
Nevertheless, when it's too cold, but it lack a dry cold moisture adversely affects plants arises. This cold causes internal plant tissue is destroyed causing them to become dark, That is why they have been dubbed black frost.
Depending on the time of year they can be displayed: spring, autumn or winter. Las heladas primaverales traen consigo un descenso de temperatura y afecta al ciclo anual de los cultivos, in the phase branches sprouting. The autumn frosts are most harmful to crops, since at this time of year the process of flower formation and phase of fruit ripening is interrupted. And finally, winter frosts affect mostly the evergreens.