How to configure stone sulfur mixture and Bordeaux mixture? Old farmers teach you simple configuration methods
Everyone knows that Bordeaux mixture and stone sulphur mixture are commonly used bactericidal and insecticidal agents. For these two agents, they can be configured by themselves. This article will mainly talk about their use characteristics and configuration methods.
First, stone sulfur mixture
1, stone sulphur mixture characteristics
Stone sulphur mixture is a reddish-brown translucent liquid, strong alkaline, low toxicity, certain corrosive and odor, good bactericidal, insecticidal and acaricidal effect. It is a kind of sterilization commonly used in agriculture. The agent is made of lime water, sulfur and water. The optimum tanning ratio is 1 part quicklime, 2 parts sulfur, 10 parts water, which is commonly used to indicate the concentration.
2, the use of stone sulfur mixture
Stone sulphur mixture can be used to control rust, powdery mildew, scab, brown spot, black spot disease, gum disease, spider mites, red spider mites, scale insects and other pests, especially in fruit trees (such as trunks) White sterilizing and insect proofing, anti-sunburn and freezing damage).
3, stone sulfur mixture considerations
Stone sulphur mixture, the best efficacy after 7-10 days of use, the efficacy can last 10-15 days, it can not be mixed with Bordeaux mixture, rosin mixture, oil emulsion, copper preparation and pesticides which are easily decomposed by alkali. Cannot be used when the temperature is too high (more than 30 degrees).
4, stone sulfur mixture preparation method
The optimum ratio of the stone sulphur mixture to the raw materials has been described above. In the configuration, first place the quicklime in the pig iron and add enough hydration to the lime milk, then heat it to the boiling in the pot, then slowly pour the water into a paste-like sulphur slurry and stir it. Boil in the pot for about 1 hour, mark the water level in the pot, and add hot water to increase the amount of water evaporated. When the solution in the pot becomes reddish brown or reddish brown and the bottom slag becomes yellow-green, cool and filter the waste. The obtained reddish-brown transparent liquid is a stone sulfur mixture.
Second, Bordeaux liquid
1, Bordeaux liquid characteristics
Bordeaux mixture, alkaline, sky blue, is a protective inorganic copper fungicide with low toxicity, strong adhesion, long-lasting effect and wide application. It can be used to control various fungi and bacterial diseases. It can be configured with copper sulfate, lime and water.
2, Bordeaux liquid use
Bordeaux mixture can effectively control anthracnose, cotton rot, downy mildew and powdery mildew. It is also more common in fruit trees than if it is deciduous, anthracnose, ring rot, ulcer disease, pear rust, grape black mites, etc. The usual spraying concentration is 150-200 times.
3, Bordeaux liquid considerations
Bordeaux mixture can not be mixed with acidic agents, stone sulphur mixture, mineral oil agent, rosin mixture, etc., and peach, apricot, plum and other stone fruit trees are more sensitive to Bordeaux mixture. It is best not to use it, and other fungicides or copper-free preparations. Alternate use works better.
4, Bordeaux liquid preparation method
An equal amount of Bordeaux mixture at a concentration of 1% can be formulated with 1 part of copper sulfate, 1 part of quicklime, and 100 parts of water. Specific operation: prepare two wooden barrels or water tank containers (do not use metal containers), one container is added with 1 part of copper sulfate (completely dissolved with a small amount of water) + 90 parts of water to make copper sulfate solution, and the other container is added with 1 part of raw lime. And 10 parts of water to make lime milk; after the lime milk is completely opened and the temperature is lowered, the copper sulfate solution is slowly poured into the copper sulfate solution container, and the mixture is vigorously stirred while being poured, and the blue Bordeaux mixture is obtained.
Special friendship reminder: Most farmers use Bordeaux mixture and stone sulfur mixture are more common. It is necessary to pay special attention to the fact that the interval between the two should not be too short, otherwise it is prone to phytotoxicity. Generally, after spraying the stone sulphur mixture for 7-10 days, the Bordeaux mixture can be sprayed again; and within 20-30 days after spraying the Bordeaux mixture, the stone sulphur mixture should be avoided, otherwise it will easily cause damage to the crop or fruit tree. .
Disposable Ear Loop Face Mask,Folding KN95 Mouth Mask,Anti-pollution Disposable Face Mask,3D Kn95 Face Mask
Dongguan Keyutai Mask Co., Ltd. , https://www.maskkytai.com