With the continuous expansion of potato acreage, the occurrence and severity of scabs have been increasing year by year and have become the main diseases in potato cultivation. After the scab, the lesions are limited to the cortex, but the diseased potatoes are not resistant to storage and their appearance is ugly. Sensitive potato skin has different sizes and different shades, so it is called scab. After the illness, the quality of the potato has a great influence, resulting in a decline in the value of the commodity and a serious economic loss. Generally, it can reduce production by 10% to 30%, and some plots can even reduce production by more than 40%. Potato scabs usually occur on alkaline soils. In sandy loam, the plots that have been continuously cropped for more than 4 years are particularly serious. The prevention and treatment of potato scabs are mostly sprayed with agricultural streptomycin, neomycin, kasugamycin and chloramphenicol (copper hydroxide) and other agents. These agents have a certain killing effect on the bacteria, but from the control effect not ideal. In recent years, through field trials, measures have been taken to deepen the land in winter and have achieved better preventive effects. The cause of potato scab disease is Streptomyces scab, an actinomycete. Germs rot in the soil or overwinter on diseased potatoes. The temperature suitable for this disease is 25°C-30°C. Take measures to deepen the soil in winter and destroy the environment where the bacteria grow. The specific approach is to seize the time when the soil is idle in the winter and deep plowing with a deep plough. The depth of the best arable land should reach 35-40 cm. Flat, let the soil exposed to long-term exposure, so that after a period of time, can basically kill the bacteria in the soil. Until 10 days before planting, one-time rotary tilling is repeated. In addition, potato scabs are prone to occur in alkaline soils, and rarely occur when the pH is below 5.2. The suitable growth pH of potato is 5.5-7.0. According to this feature, 50 kg of gypsum powder can be sprayed per acre in combination with winter deep plowing. Gypsum powder can improve the soil, adjust the pH of the soil, and is suitable for the improvement of soils such as saline-alkali land and red soil. In addition, disease-free seed potatoes should also be used when selecting potato varieties. Before sowing, use 40% formalin 120 times soaking for 4 minutes. Pay more attention to organic fertilizer or green manure on fertilization, and be careful not to use unfamiliar human or animal manure. The potato plots should be planted in water-saving vegetable plots. The potato should be watered in time for drought, so that the drought can be poured. Just do the above points to reduce the incidence of scab.
Organic Potato starch is produced by fresh potatoes. The potatoes are crushed, and the starch grains are released from the destroyed cells. The starch is then extracted and dried to powder. Organic potato starch can replace cornstarch in most cases as it is also a thickener for foods, such as soups, sauces, batters, baked goods, etc.
It contains typical large oval spherical granules, their size ranges between 5 and 100 μm. Potato starch contains minimal protein or fat. This gives the powder a clear white color, and the cooked starch typical characteristics of neutral taste, good clarity, high binding strength, long texture, and a minimal tendency to foaming or yellowing of the solution.
Potato starch contains approximately 800 ppm phosphate bound to the starch, this increases the viscosity and gives the solution a slightly anionic character, a low gelatinization temperature (approximately 140 °F or 60 °C), and high swelling power.
As a professional producer and supplier of organic potato starch, our starch is produced, processed, and stored in strict accordance with EU and USDA organic standards. It is 100% traceable.
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