Stone sulphur mixture is a kind of bactericide used in agriculture made of quicklime, sulphur and water. It is often used in fruit trees. Advantages and disadvantages of stone sulphur mixture Among the many fungicides, the stone sulphur mixture is widely used by the majority of fruit farmers because of its advantages of convenient material extraction, low price, good effect and inhibition of various pathogens. However, due to the more tanning process of the stone sulphur mixture, the mother liquor of the fruit farmers is too low, and many people only spray it with experience after dilution with water, so that it does not achieve the expected control effect. The stone sulphur mixture is made of lime and sulfur and is strongly alkaline. The stone sulphur mixture can not be equipped with any insecticide or bactericide, nor can it be equipped with any foliar fertilizer . This is because all insecticides are almost acidic and foliar fertilizers are also acidic. It is difficult to combine with the clearing of the Qingyuan. The spring supplement is a very important thing, involving the growth and quality of flowering leaves and young fruits. The role of stone sulphur Stone sulphur mixture can kill germs, pests and eggs by infiltrating and eroding pathogens and pest walls. It is an inorganic sulfur preparation that can both sterilize and kill insects and kill cockroaches. It can prevent powdery mildew, rust and brown rot. Disease, brown spot, black spot disease and red spiders, scale insects and other pests and diseases. Protection, prevention and treatment of diseases, moderate toxicity to humans and animals. Instructions Spray method Seedlings and lawns are sprayed. Use to control red spiders, scale insects, rust, powdery mildew, etc. on trees and flowers. After the fall of the fruit trees in autumn and winter, the stone sulfur mixture is usually used once in the Qingyuan. Drying method Dilute 180-400 times with water in the early spring and late autumn, or evenly brush it on the trunk with a brush. Taian Garden Department experience - after the trees in the dormant period, the stone sulphur mixture is used to paint the sage, the pomegranate trunk and the main branch, which basically eliminates the harm of the purple velvet. Wound treatment Applying wounds reduces the infection of harmful bacteria and prevents the occurrence of rot and ulcer disease. Whitening agent Stone sulphur mixture 0.4kg, quicklime 5kg, salt 0.5kg (may not be added), water 40kg to prepare tree whitening agent. Generally used in autumn and winter, the effect of controlling pests and diseases is better, and the trees can continue to grow normally in the second year. Precautions 1. It should be used with the equipment. The water temperature of the stone sulphur mixture should be lower than 30 °C, and the hot water will reduce the effectiveness. Temperatures above 38 ° C or below 4 ° C can not be used. The temperature is high and the effect is good. When the temperature reaches 32 °C or above, use it with caution. The dilution factor should be increased to more than 1000 times. The safe use interval is 7 days. 2. Avoid mixing with Bordeaux mixture, copper preparation, mechanical emulsifiable concentrate, rosin mixture and pesticides that are easily decomposed under alkaline conditions. When used in tandem with the Bordeaux mixture, there must be sufficient intervals. First, spray the sulphur mixture, and spray the Bordeaux mixture after 10~15 days. If the Bordeaux mixture is sprayed first, it is necessary to spray the stone sulfur mixture after 20 days. 3, avoid blind application, crops sensitive to stone sulphur mixture, easy to cause phytotoxicity, should be tested or in accordance with the guidance of the local agricultural technical department. Rosaceae plants such as peach, plum, plum, pear, etc., and leguminous plants such as Bauhinia and Acacia are sensitive to stone sulfur mixture, and should be used with caution during the growing season and flowering. It can be used at a reduced concentration or during dormancy to avoid phytotoxicity. For example, Li Shu spraying stone sulphur mixture will inhibit flower bud differentiation, resulting in lower yields next year. Master the timing of use. Deciduous trees are the best time to use stone sulphur mixture before dormancy and early spring germination. Evergreen: It works best after picking and before flowering. In the apple orchard where red spiders occur, when the damage to the leaves is very serious, it is not advisable to spray the sulphur mixture to avoid causing the leaves to dry up and fall off. 4. The concentration of the stone sulphur mixture is determined according to the climatic conditions and the period of prevention and treatment. In winter, the temperature is low, the plants are in a dormant state, and the concentration can be higher; in summer, the temperature is high, the plants are in a vigorous growth period, and the use concentration is low. Excessive concentration or excessive temperature may cause phytotoxicity. The tree and flower dormancy period (early spring or winter) is high in spraying concentration and low in growing season. Under normal circumstances, the concentration of the stone sulphur mixture is 3 to 5 degrees in the dormant period of the deciduous fruit tree; 0.1 to 0.2 degrees in the vigorous growth period is appropriate. 5, protective clothing should be worn when dispensing and applying, and the whole body should be cleaned after spraying. When cleaning the sprayer, do not allow the wastewater to contaminate the water source. The liquid splashes on the skin and can be washed with plenty of water to prevent skin burns. The sprayer after applying the stone sulphur mixture must be thoroughly washed to avoid corrosion damage. 6, fully stir before use, long-term continuous use is easy to produce phytotoxicity, should be used interchangeably with other pesticides. The specific method of tanning is: first weigh the high-quality quicklime into the pot, add a small amount of water to digest the lime, then add enough water, heat it to boil, filter out the slag, and then prepare with a small amount of hot water beforehand. Slowly pour the sulfur paste into the pot, stir it at the same time, and record the water line. Then add the fire and boil. Start the time when boiling (keep boiling for 40-60 minutes). The water lost in the cooking should be supplemented with hot water. Add 15 minutes before the ceasefire. When the solution in the pot is dark reddish brown and the slag is blue-green, the combustion can be stopped. After cooling filtration or precipitation, the supernatant is the mother liquor of the stone sulphur mixture. At the time of use, it should also be noted that the concentration of the liquid should be determined according to the type of plant, the object of the pest, the climatic conditions, the period of use, etc. Before use, the concentration of the original liquid must be measured with a Baume hydrometer, and the dilution plus is calculated according to the required concentration. The amount of water. The calculation formula is: water addition amount (jin) = stock solution concentration ÷ dilution concentration -1. More pesticide encyclopedia , please pay attention to China Pesticide Network (Source: Good Agricultural Resources Network) Barricades are obstacles that block road traffic. They can refer to barriers used as fences during road construction, oil pressure security barricades to prevent terrorist attacks outside important building doors, or roadblocks temporarily constructed by demonstrators during large-scale demonstrations. Orange Traffic Cones,Yellow Traffic Cone,Traffic Cones Near Me,Small Traffic Cones Jieyang Xinxin Industry and Trade Co., Ltd. , https://www.gdxxgm.com
The use of barricades may have originated from the turbulent Paris of the 16th century. Under the rule of King Henry III, the lives of the French people were hard. The supporters of the Duke of Guise took to the streets on May 12, 1588, and built roadblocks , History called "First Day of the Barricades". For the next two centuries, roadblocks played an extremely important role in major social movements in France.
Rejection is a type of motorized roadblock. In ancient China, setting up long guns or matching wooden poles to create obstacles to defend against the attack of enemy cavalry is called "rejecting carbines". The three intersecting and intersecting, fixed with iron as the "distant gu solid refusal carbine". A large wooden bar, with different lengths of wood, wears nine to ten iron guns, which is called a "close guard antler". Similar fortifications exist in the West.
Modern refusal horses are instead composed of iron frames and barbed wire, so it is also called "iron refusal horses" and has a wider range of uses. In addition to its military use, it will also be used in the riot operation. It has the effect of isolating and blocking people and vehicles. In addition, some modern horse-rejecting horses are also designed with walking wheels and strong maneuverability, which can be completed in a short time by 2 to 4 people. However, due to its light weight, short piles are sometimes added to the ground.