In the cold winter and spring seasons, the use of biological bacterial fertilizer can not only activate nutrient elements that are fixed in the soil, but also contribute to the growth of the root system, but it should not be used blindly. It should be determined according to the soil environme.......

Character identification:

In the production area has been processed into a cross-cut or vertical section, the size of thin and thick.

Skin gray brown, shrinking. Sections are light yellowish brown or.......

Spring fish farming is the beginning of a year's aquaculture activities. Grasping spring feeding and management is of great significance in ensuring the smooth implementation of the annual aquaculture production and improving the overall aquaculture benefits.

Handle the fry spe.......

For the protagonist of this incident, the preservative contained in Coca-Cola Zero, is it really exceeded? What are the other beverages in China? What does the addition of preservative to beverages bring to the human body?

Preservat.......

First Thing: Unprotected Behavior

Hazard: You are most likely to be infected with sexually transmitted diseases without any awareness.

Experts pointed out that about 75% of women carry chlamydia, but.......

1. The main indication for traditional scraping therapy is rickets. The tools used are copper coins, porcelain wine glasses, and cotton yarns. Scraping site for the spine, neck, chest and abdomen, elbow fossa, Lunar Kingdom nest. Use cold water, sesame oil, etc. to moi.......

What factors will affect the efficacy of pesticide use? The use of pesticides is the most commonly used method for pest control. In the process of pesticide use, farmers often report poor efficacy. Some good medicines with complete three-package, new ingredients, sufficient content, and new.......

In recent years, the protection of human safety cabinets has been valued by laboratory workers. Among them, the potassium iodide method has been well received for its accurate and rapid detection. Personnel protection tests can be performed using the potassium.......

Identification of traits: rhizome flat cylindrical, curved as a shrimp, long as thick. The surface is purple-brown or purple-black, and the whole has a fine ring pattern and residual hard roots or root marks. Hard quality. The profile is light pink. Slightly powder.......

Rational use of plant protein feed

Beef bovine vegetable protein feedstuffs are mainly cake feeds, mainly bean cakes (boiled cakes), peanut cakes (boiled cakes), cottonseed cakes (boiled cakes), and rapeseed cakes (boiled cakes). Bean cake (粕) is rich in protein and high quality.......

1. Go to a regular seed shop to buy peanut seeds. At present, there are many names of peanut varieties, and the names are even more varied. Which varieties have been identified and which varieties are the names of the dealers themselves. It is difficult to grasp the selection of farmers in.......

Air-cooled chiller installation precautions:

Air-cooled water machine Zui heavy heat dissipation effect, so please choose the ground before the installation is smooth, the air is not smooth, the air is not polluted, the place where the .......