admin
Fildah Gwati
RISING temperatures and extreme heat have taken their toll on agricultural activities amid revelations that even crops being produced in greenhouses are being affected, in a development that is putting farmers under increasing pressure to find innovative solutions to protect and manage them.Greenhouse specialist with a local firm, Agrirocket, Engineer Chamunorwa Kapita said crops were struggling to withstand the heat resulting in increased wilting and evapotranspiration making it difficult for farmers to maintain optimal growing conditions and ensuring sustainable food production.
“The increasing heat affects greenhouse environments in multiple ways. High temperatures can cause stress to plants, leading to reduced yields, stunted growth and even crop failure. Additionally, extreme heat increases the risk of pest infestations and diseases, further complicating crop management,” he said
Farmers must explore the use of innovative cooling systems within greenhouses. Evaporative cooling, for instance, involves the use of fogging or misting systems to lower temperatures and improve humidity levels.
These systems create a microclimate that helps plants withstand extreme heat, maintaining optimal growing conditions
“Shading techniques can also be adopted to protect plants from excessive heat. Installing shade nets or employing shade cloths can help regulate temperature and reduce the impact of direct sunlight on crops. This practice prevents overheating, sunburn and dehydration, supporting healthier plant growth,” he added.
Eng Kapita observed that some farmers were employing a range of strategies to supplement and manage their crops effectively adding that they were using advanced irrigation systems such as drip irrigation to supply plants with water and essential nutrients more efficiently thereby reducing water loss through evaporation.
“By cultivating a variety of crops with different heat tolerance levels, farmers can spread risks and increase the likelihood of successful harvests. This approach allows farmers to adapt to changing climatic conditions and maintain a steady food supply,” he said
Eng Kapita also said urged farmers to remain proactive in finding effective ways managing their crops.
Online Reporter