The specifications, use and cleaning methods of glassware commonly used in physical and chemical testing are summarized! First, the specifications and use of commonly used glassware The glassware commonly used in chemical testing laboratories is divided into two categories, one is glassware for co

Snowfall often causes adverse effects on the growth of greenhouse vegetables. Lighter vegetables cause poor growth, and heavy ones crush the greenhouses and freeze vegetables. Therefore, vegetable farmers should do a good job of prevention work and manage

Author: Nadia Tagnaouti1, Anitha Thomas1, Rebecca De Souza1, Ian Backstorm1, Andrew Brown1, Eric Ouellet1, Shyam Garg1, Grace Tharmarajah1, Keara Marshall1, Shannon Chang1, Timothy Leaver1, Andre Wild1, Oscar Seira2,3, Jie Liu2,3, Wolfram Tetzlaff2,3, Peter Deng4,5 , David J. Segal5 , Jan A. Nolta4

(1) Choosing sputum, soil preparation, and application of base fertilizer It is advisable to use fields with more fertilization and less fertilizer before the crop. It is best not to work with cruciferous vegetables. Deep ploughing and turning over, appl

Some crops can increase their yield by transplanting, such as cabbage, transplanting cabbage, which can better promote the growth of cabbage and increase yield. Let's take a look at the key points and precautions for cabbage transplanting. First, timely transplanting Bef

1. Botanical characteristics 1 root. Spinach has a deeper root and is more developed. The straight root is slightly thicker and slightly enlarged, the upper part is red, and the nutrients are stored, and the taste is sweet and edible. The main root group

The cultivation time of autumn sorghum vegetables is short and the growth is fast. However, whether it is necessary to fertilize the vegetables in the autumn saplings is a lot of controversy. Whether the fertilizer is applied or not should be analyzed from the amount of base fertilizer applied: W

In the cultivation and management of the annual cycle of apple trees, the accumulation of nutrients is promoted, and the inefficient consumption of nutrients should be minimized. These two aspects are effective cultivation management measures for obtainin

Recently, there have been times when farmers and farmers consulted the time and method of wintering garlic double film coverage. Here, the following questions are answered. Garlic-covered double membrane is a new planting pattern in recent years. After c

What are the symptoms of boron deficiency in fruit trees? How to treat? For fruit farmers, fertilization is very important. If not done well, it will lead to many symptoms and a significant drop in fruit quality. Nutritional deficiency symptoms Boron de

The sowing period is generally selected in mid-February sowing in mid-April, and 30 to 50 grams per acre. Seed treatment should be dried for 2 to 3 days, then soaked in warm water at 55 °C for 15 minutes, then washed with water, placed at 25 °C ~ 3

First, the variety selection Different varieties are used according to the habits and consumption habits of different season varieties. In winter and early spring, red leeks and safflower varieties with strong cold resistance are used. In other seasons,