1. Potato chips with no disease, smooth and tender skin, obvious potato shape, obvious bud eyes and characteristics of the variety, and seed potatoes, improperly stored or stored for too long and weakened, or slender and weak potato Block, weak in life, susceptible to disease, can not be used as seed potatoes.
2. Generally, the yield of large seed potato is higher than that of small seed potato, but it is used for large seed potato, and the amount of seed is large and the cost is high. Therefore, medium-sized potato chips are used for seed potato production, generally each The seed potato is preferably about 50 grams. The use of non-cut whole potato seeding has the advantages of disease prevention and seedling protection, drought prevention and flood control, avoiding the spread of pests and diseases, labor saving, neat seedling development, root system development and strong growth potential.
3. Seed potato cutting can save seed and early germination. Generally, the weight of each cut should not be less than 20 grams, and there should be 1 or 2 buds on it. When the seed potatoes are cut, in order to prevent ring rot and bacterial wilt from being infected by cutting knife, the cutter should be strictly disinfected.
4. The skin of the seed potato turns green, the potato becomes soft, and the bud eye is white or grows green short and strong buds can be sown.
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Carbomer is an acrylic resin obtained by cross-linking pentaerythritol with acrylic acid. It is a very important rheological regulator. After neutralization, carbomer is an excellent gel matrix, which has important applications such as thickening suspension. According to the dry product calculation, including carboxylic acid group (-cooh) should be 56.0 % ~ 68.0%.
Common carbopol series include: Carbopol 940, 941, 934, 1342, 980, ETD 2020, AQUA sf-1, Ultrez 21, Ultrez 20, etc.
Carbomer,Carbopol,Carbopol 940, Carbomer 940, Carbomer 980, acrylic acid
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