Why is the use of pesticides less effective?
A medicinal agent often has a good insecticidal effect when it is first used, but as the dosage continues to increase and the range of use continues to expand, cases of increased resistance have emerged. The most prominent is esfenvalerate, which is often called "the bles ---MORE---
What is vacuum spraying technology?
Vacuum spraying is a post-processing technology for forming feeds developed in recent years in the world. It is also called liquid permeation or core spraying. Vacuum spraying adds a high proportion of liquid (primarily grease) to the expanded pellets, making it particularly suitable for the produc ---MORE---
The impact of low temperature and low rain in Hainan is…
On January 4, 2011, it was affected by strong cold air, and the cooling in various areas of Hainan Province was obvious. As of January 9, the low temperature and rainy weather continued for 6 days. It is characterized by weak strength, short duration and small range of influence. Although the inte ---MORE---
Technical points for applying potassium fertilizer in c…
The application of potassium fertilizer in cotton fields has the following effects: First, increase the physiological activity of cotton and increase the utilization rate of nitrogen fertilizer. The second is to promote the growth of cotton roots, stems, leaves and reproductive organs, extend t ---MORE---
Machinery industry: rapid growth and stability but faci…
Core point of view: Driven by the rapid growth of fixed asset investment and manufacturing, the machinery industry is currently showing sustained and rapid growth. From January to April 2010, the machinery industry completed a total industrial output value of 407.773 billion yuan, an increase of ---MORE---
Spraying pesticides in the summer "five notes"…
The summer temperature is high, the medication is improper, it is easy to cause pesticide poisoning. Here, farmers are reminded to apply pesticides to pay attention to “five essentialsâ€: The time of administration should be appropriate. Should try to avoid the hot weather at noon, ---MORE---
Papaya nutrient content and fertilization management
Papaya plants grow fast, early-maturing varieties, 45 to 50 days after planting to start budding, flowering annual results, it required a large number of trace elements and must be an adequate supply to meet normal growth and flowering. Foreign studies have shown that the annual production of ---MORE---