Temperature Nutrient uptake needs the energy come from the respiration, and the respiration is sensitive to the temperature, so uptake of nutrient decline in the cold condition. In hot condition(more than 40C)the enzymes is denatured, the uptake capacity is low too. The soil nutrients availability is affected by the soil temperature. 般6~38°C的范围内,根系对养分的吸收随温度升高 而增加
Nutrient uptake needs the energy come from the respiration, and the respiration is sensitive to the temperature, so uptake of nutrient decline in the cold condition. In hot condition (more than 40℃) the enzymes is denatured, the uptake capacity is low too. The soil nutrients availability is affected by the soil temperature. 一般6~38ºC的范围内，根系对养分的吸收随温度升高 而增加。 Temperature
light The nutrient uptake requires energy, mainly in the form of ATP for driving the proton pumps or transporter. If oxygen supply is limiting or photosynthesis and the carbohydrate apply to the root is limited, the nutrients uptake is low
The nutrient uptake requires energy, mainly in the form of ATP for driving the proton pumps or transporter. If oxygen supply is limiting or photosynthesis and the carbohydrate apply to the root is limited, the nutrients uptake is low. light
light Hoagland in the 1920s showed that Br- uptake by Mitella was severely reduced in the dark and increased correspondingly in sunlight. He correctly concluded that the energy of photosynthesis was being harnessed to do the transport work Soon after, steward in hoagland' s lab showed that Br uptake by potato slices depended on the availability of o2, and concluded that respiration was necessary for ion uptake in non-green tissues
• Hoagland in the 1920's showed that Br- uptake by Nitella was severely reduced in the dark and increased correspondingly in sunlight. He correctly concluded that the energy of photosynthesis was being harnessed to do the transport work. • Soon after, Steward in Hoagland's lab showed that Br- uptake by potato slices depended on the availability of O2 , and concluded that respiration was necessary for ion uptake in non-green tissues. light