Why is frost cooling important in agriculture


Beyond killing the baddies, proper cold serves another important purpose: For perennial crops, shorter days and sustained low temperatures bring a cycle of dormancy, a deep, almost anesthetized sleep, during which growth is temporarily halted.


How can we prevent frost damage to crops?

Due to the wide window and severe frosts many of the current best management practices for minimise frost damage have had little effect on reducing damage; crop type (barley over wheat), delayed sowing, mixing varieties, soil amelioration and stubble management for example in the more frost prone parts of the landscape have had little effect.

Why do crops become more susceptible to frost?

Current frost research indicates that crops sown with high seeding rates, high nitrogen and higher yield potentials may be more susceptible to frost. It is thought that high inputs creates denser canopies which shades the soil, minimising soil heat retention and the ability of the soil heat bank to buffer the frosts.

Why do we need cold weather for crops?

Beyond killing the baddies, proper cold serves another important purpose: For perennial crops, shorter days and sustained low temperatures bring a cycle of dormancy, a deep, almost anesthetized sleep, during which growth is temporarily halted.

How does Frost affect ameliorated soil?

In WA, there has been a lot of anecdotal evidence on the effect of frost on ameliorated soil. Some growers reported reduced frost damage in paddocks that have been mouldboarded, spaded, delved or clayed.


What is the purpose of frost protection?

What are Frost-Protected Shallow Footings and Why Are They Used? Most building codes in cold-climates require foundation footings be placed below the frost line, which can be about 4-feet deep in the northern United States. The goal is to protect foundations from frost heaving.

What is the effect of frost on crops?

Frost damage to crops results not from cold temperature but mainly from extracellular (i.e. not inside the cells) ice formation inside plant tissue, which draws water out and dehydrates the cells and causes injury to the cells.

What is frost control in agriculture?

Freeze Protection Devices Freeze protection can be achieved to varying degrees with air movement, heaters, sprinkler irrigation, mulches/ground cover, and foliar chemical sprays. Wind machines and orchard heaters were developed for areas where water may not be available for agricultural irrigation during freeze events.

What is the importance of temperature in agriculture?

High temperature, even for short period, affects crop growth especially in temperate crops like wheat. High air temperature reduces the growth of shoots and in turn reduces root growth. High soil temperature is more crucial as damage to the roots is severe resulting in substantial reduction in shoot growth.

How are crops protected from frost?

Plastic tunnels are used to protect early-planted summer crops. In mountainous areas, farmers protect vegetable crops by not planting during frost-prone periods, or by using plastic tunnels. They also use sprinklers or heaters. For tree crops, they use heaters.

What are the effect of frost?

When the temperature goes below 0 C, there will be crystals around the nucleus. Tissues that are in secondary growth are usually get affected by freezing; this can also cause a shrinkage effect on cells. As intracellular ice is created, exothermic ice is produced at a low temperature than extra-cellular ice creation.

How does cold temperature affect plant growth?

Colder weather can decrease plant enzyme activity. This then disrupts plant nutrient intake because plants secrete enzymes to digest surrounding materials for soil. Consequently, this can stunt growth or more severely cause them to die.

How does temperature influence agricultural yields?

Increases of temperature may cause yield declines between 2.5% and 10% across a number of agronomic species throughout the 21st century (Hatfield et al., 2011). Other evaluations of temperature on crop yield have produced varying outcomes.

How does high temperature affect agriculture?

Reduced grain and forage quality can reduce the ability of pasture and rangeland to support grazing livestock. More extreme temperature and precipitation can prevent crops from growing. Extreme events, especially floods and droughts, can harm crops and reduce yields.


  • The food choice expectations of people living in developed countries are made possible by affordable refrigeration systems across the entire food supply chain. Introducing similar systems for developing countries will be difficult and will require large amounts of energy. Avoiding refrigeration dependence is difficult when economic development depends on exporting food to …

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  • According to the FAO, pre-cooling is “amongst the most efficient quality enhancements available” and is regarded “as one of the most value-adding activities in the horticultural chain”. Pre-cooling refers to the rapid removal of field heat shortly after the harvest of a crop. Field heat can be defined as the difference in temperature between the temperature of the crop harvested and th…

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Cold Storage

  • Cooling and cold storage are very energy intensive and expensive undertakings that require reliable electricity supply. This precondition is often not given and capital and running costs for farmers in developing countries are generally too high. Hence, unbroken cold chains and the use of appropriate cold storage facilities are generally not access…

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Clean Energy Solutions For Cooling

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