In the summer, when the temperature is high and it is rainy, the tomato loses heavily. During the over-summer period, "two-reform and three-timely" management measures should be taken to prevent defeat. Change the cultivation method to change the flat ridge cultivation to ridging cultivation, to avoid the tomato root system by the stain. The plants that have been cultivated in peacetime can be combined with earth and graded to make them become ridgebacks. The soil is usually divided into 2-3 times to prevent overdraw of primary soil and affect root absorption capacity. Changing the technique of pruning When the first inflorescence is set, the first branch that grows below the second inflorescence replaces the trunk, and when it has two or three inflorescences, one side of the trunk is selected as the main trunk. Such a continuous picking of the heart to replace the head, stimulate the vegetative replant renewal and growth, so that the plants do not defeat the summer, more fruit. Timely water supply fertilizer is poured once every 7 days, and 15-20 days is topdressed with urea or ammonium nitrate and other fast-acting nitrogen fertilizers, and top dressing is about 5 kg per mu. At the same time, spraying potassium dihydrogen phosphate solution on the leaves makes the plants robust and not too long. In the case of tomato disease prevention and control, diseases and diseases are mainly caused by pests and diseases during the summer. Carbendazim and Zeisin Zinc were used to dilute 500 times in a 1:1 ratio for spraying, spraying once again at intervals of 10-15 days. Before the onset of virus disease, spray 0.1-0.3 times potassium permanganate every 7-10 days to prevent the occurrence of virus disease; In addition, use 40% Dimethoate EC 1500-2000 times spray to kill aphids in time to prevent aphids Spread viral disease. Timely row of tomatoes in fear of flooding, watering in the morning and evening when cool, immediately after the irrigation water to exclude the ditch.
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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