First, a reasonable fertilization

The fertilization of bayberry should take into account the soil and nutrient levels of the tree and the required fertilizer characteristics of bayberry. The first is the requirement of Yangmei's fertilizer requirement. Attention should be paid .......

Waste garbage upscale nutrition soil

Seedlings and flowers cultivated soil require loose texture, containing humus, good physical properties, fertilizer retention performance, water storage performance and drainage performance, no pests and weed seeds.

The roots of flowers .......

In recent years, there have been a number of areas in which chickens have low feed intake, poor growth, weight loss, poor uniformity, faeces and other symptoms, glandular and gastric enlargement such as globular, glandular and gastric mucosal ulcers, shedding, and musc.......

1. Pouring water and wheat yellow water to increase the relative humidity in wheat fields and reduce the temperature between plants is an effective measure to prevent dry hot air. Generally, when the water holding capacity in the field is less than 65% to 75%, the grouting water should be .......

First, clever foliar fertilizer. The grape is sprayed with foliar fertilizer and sprayed on the back of the leaves, and shoots and young fruit can also be sprayed appropriately. It can be sprayed during the whole growth period after summer. In order to improve ergonomics, it is possible to.......

1 Generation II Sputum Warts Occurrence and Prevention Alert

According to the investigation of the overwintering base number and development progress of Sicuanhua, combined with historical data and meteorological conditions, a comprehensive analysis of this year's 1st generatio.......

Meteorologists remind farmers that in May, defense measures should be taken in time to prevent the adverse effects of low temperatures on agricultural production.

Winter wheat area: in the critical period of yield formation, since the time of sowing, the temperature is low for most.......

Chinese medicine crusher precautions

Clicks:566 Release time:2010/5/21

Vacuum pumps can be divided into three categories depending on the range of use and pumping efficiency:
(1) For general water pumps, the pressure can reach 1.333~100kPa (10~760mmHg) as "rough" vacuum.
(2) Oil pump, the pressure can reach 0.133~1.......

Praxanthine

English generic name prometryn

The other names are esa gard, Caparol, g 34161, Mekazin, and Selektin.

Toxicity is low toxicity to humans and animals. Acute oral LD50 in rats was 3150-3750 mg/kg. Percutaneous rabbit acute LD50> .......

Identification points with Newcastle disease First, bird flu disease common pancreas necrosis, bleeding, hemorrhoids feet, swollen head, and Newcastle disease rarely have these symptoms. Second, the occurrence of Newcastle disease can often detect abnormal changes i.......