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Lack of phosphorus may interfere with the normal opening of the plant leaf stomata, decreased stomatal conductance resulting in decreased photosynthesis and respiration rates [85] while decreased transpiration increases plant temperature. [86] Phosphorus is most available when soil pH is 6.5 in mineral soils and 5.5 in organic soils. [74]
The stolons are easily recognized when potato plants are grown from seeds. As the plants grow, stolons are produced around the soil surface from the nodes. The tubers form close to the soil surface and sometimes even on top of the ground. When potatoes are cultivated, the tubers are cut into pieces and planted much deeper into the soil.
There must be phosphorus in the soil, but the plant must also absorb the phosphorus. Phosphorus uptake is limited by the chemical form of the phosphorus. A large portion of phosphorus in soil is in chemical compounds that plants can't absorb. [9] Phosphorus must be present in soil in specific chemical arrangements to be usable as plant nutrients.
A storage clamp is used in the agricultural industry for temporary storage of root crops such as potato, turnip, rutabaga, mangelwurzel, and sugar beet. A clamp is formed by excavating a shallow rectangular depression in a field to make a base for the clamp. Root crops are then stacked onto the base up to a height of about 2 m (6 ft 7 in).
Potatoes are root vegetables that grow in soil underground. Even after picking, potatoes almost always carry around some dirt and debris that may have some pesticides or bacteria in the mix.
Phosphorus is most commonly found in the soil in the form of polyprotic phosphoric acid (H 3 PO 4), but is taken up most readily in the form of H 2 PO − 4. Phosphorus is available to plants in limited quantities in most soils because it is released very slowly from insoluble phosphates and is rapidly fixed once again.
In clamp storage, another simple and low-cost method, sweet potato tubers are stored in covered piles. [3] The tubers in the best condition are selected, stacked in a heap on a layer of grass, and covered in layers of grass and soil. [3] As with pit storage, ash, lime, and sawdust can be used for added effect.
Phosphorus is a primary factor of soil fertility as it is an element of plant nutrients in the soil. It is essential for cell division and plant development, especially in seedlings and young plants. [10] However, phosphorus is becoming increasingly harder to find and its reserves are starting to be depleted due to the excessive use as a ...