Potato leaf rolling disease control measures
Knee Warmer is using batteries as power supply, to reduce pains of the knees. It provides stable heat penetrating so as to relax fatigue caused to the knees.
It is always with velcro for fastening better, which also enhance the heat therapy effect, as it touches better to human knees.
Below picture for reference, it can be made in different shapes and designs.
Knee Warmer Knee Warmers for Arthritis, Specialized Knee Warmers, Electric Knee Warmer, Thermal Knee Warmer Ningbo Makeheat Electrical Appliance Co., Ltd , http://www.makeheat.net
Causes of physiologic leaf curling may be due to overdosage of nitrogenous fertilizers, soil drought, water shortage, high temperature, poor root development, impaired water absorption due to injury, etc. Metabolic function is affected, so that the output of carbohydrates from the leaves is weakened, and excessive accumulation of starch grains in the leaves causes aging, thickening, and rolling up. When the water supply to the roots of the plants is insufficient, in the event of high temperatures, the water transpiration of the leaves is often greater than the absorption. If the demand exceeds the supply, the plants instinctively protect themselves and adjust the mechanism to curl the lower leaves and reduce the transpiration area.
〔Prevention〕
(1) Strengthen management, nurture strong health, promote root development, and increase root absorption.
(2) Avoid excessive drought in the soil, timely irrigation, and ensure the water requirement of the plant's physiological functions.
(3) Apply enough organic fertilizer and do not apply nitrogen fertilizer.
(4) After the occurrence of physiological rolling leaves, timely adjustment of soil conditions and promotion of normal plant growth, such as cooling, irrigation, spraying of micro-fertilizer, etc., can be alleviated.
