Pest control is the key The early period of spring is a critical period for the prevention and control of apple pests and diseases. The first step is to scrape bark rot lesions, ring vein lesions and old cracks, clear the orchard, control the disease progression, reduce the density of the …
The Leica Nanotechnology Division provides a complete solution for SEM preparation for petroleum geological exploration.
SEM sample preparation process
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We all know that the short shelf life of strawberries is a difficult fruit to keep fresh. This is because strawberries have high water content, delicate tissue, and they are susceptible to mechanical damage and microbial infestation and rot. At room temperature, strawberries begin to chang…
Summer health care pay attention to five things
Replenishment
In summer, the temperature is high, and human sweat is excreted vigorously. Naturally, …
Release date: 2017-02-16
As a co-founder of Nasdaq's "first" Editas company, David R. Liu, a professor of chemical and chemical b…
(1) Winter rapeseed area in the Yangtze River Basin
Fertilization principle
(1) Scientifically fertilize according to the classification of soil nutrient status, current seedling condition and target yield level in the planting area.
(2) According to the soil effecti…
Anemia is a common disease. If you want to completely improve anemia, you should properly add blood. This is a common sense of health that everyone knows. There are many foods that can supplement the body with blood. In the eyes of healthy diet experts, food supplements do not actually hav…
Answer: On average, there are two spider mites on each leaf and they can be used twice. Immediately after harvesting, the insecticide was sprayed all over once. Can be used 80% of the students M800 times +50% carbendazim 600 times + 1.5% ticks 4000 times +0.3% high-quality urea. In additio…
Girls are naturally not resistant to snacks, but at the same time delicious and attractive snacks are the enemy of weight loss, how can we balance the two? Today, I will introduce you to several thin snacks, so that you eat more and more thin.
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First, seedlings damage
The seedling damage is the high water content in the soil of seedlings, lack of oxygen, and the rapid growth of anaerobic bacteria, so that the root system of seedlings can not be normally breathed, and the water absorption of fertilizers is hindered. Under…
The CSY series pesticide residue detector adopts the latest national standard method and quantitatively analyzes the unknown concentration sample and the known concentration standard substance according to the principle of Lambert-Beer law. The expression of Lambert-Beer la…