In the rainy season of high temperature and high humidity in summer and autumn, the scallions are prone to outbreaks of the popular scallion plague, which can make the original green oily scallions become yellow spots in 2-3 days, then turn white, green onion leaves are coveted, and even r…

The following is a daily review of base metals published on September 2 by Amalgamated Metal Trading Limited (AMT), a leading brokerage of the London Metal Exchange (LME). Copper: Technical buying pushes copper prices to a new high of $3,725, and the market outlook will wait for opportunities t…

Driven by strong copper, last Tuesday's second-half aluminum hit another four-month high of 1,951 U.S. dollars. Last Wednesday, the price of copper fell sharply by a 4% increase in inventories and a 1% rise in the U.S. producer price index. The drop, which fell to a low of $1860, has reboun…

Urea is an amide nitrogen fertilizer, accounting for 35%-40% of China's nitrogen fertilizer production, second only to carbonamine.

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The urea formula is CO(NH2)2, which contains 46% nitrogen (N) and is white or pale yellow. It is easily soluble in water, the aqueous…

First, the application period Bordeaux liquid is a protective fungicide, should be used before the onset of fruit trees, the effect after the onset is not very satisfactory. It is not suitable to apply the apple tree within one month after the flower falls and the fruit is near the maturit…

In the soybean flowering stage, the stems of the plants are thick and thick, and the leaves are thick and green, and there are no spots. Field management is mainly to prevent premature aging, control the length of the child, keep the flowers and pods, and prevent falling off. Main measures…

During the whole growth period of rice, 40%~60% of nitrogen fertilizer, 50%~100% of potash fertilizer and phosphate fertilizer are used as base fertilizer, and the rest are top dressing. On the basis of the application of the base fertilizer, the rice topdressing should be controlled accor…

Since the advent of modern pesticides for more than half a century, it has played an important role in the production and development of human society. The author has also been engaged in pesticide production, but when it comes to contact with some products produced by enterprises, es…

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LME Market: The London Metal Exchange (LME) base metals mostly closed higher on Friday, with strong fundamentals triggering short covering. Traders said that Chinese manufacturers further cut production and stimulate three-month zinc to hit seven years and three months New high. Metals gains me…

After mango harvest, anthracnose and rot are the most serious diseases. The pathogens develop disease during postharvest maturation, and black patches appear on the peel and fruit pedicle, causing the fruit to rot. To this end, it is necessary to take measures to wash fruit and prevent cor…