Maintenance method for Philomon and ACE columns

Columns are a consumable and therefore have a limited life. For most applications, the column should be continuously injected 500-2000 times (injection), but this will vary depending on the cleanliness of the sample, the pH of the mobile phase, and the use of .......

Reproduction points of sweet-scented osmanthus

Osmanthus fragrans tree cutting propagation, simple operation, more suitable for family use. The key to cutting propagation is the choice of cuttings, which is directly related to the survival rate of sweet-scented osmanthus trees. The branches of.......

Summer pear tree topdressing has a doorway

Summer is the period in which pear trees have the largest amount of vegetative growth and the fastest reproductive growth in a year. At this time, the pear tree has higher requirements on the conditions of fertilizer and water, and it is necessary.......

Nanyu grape planting technology

First, the southern jade grape planting points

1.

Generally speaking, in the spring, the result tree begins to sprout. In the first year, the result is mainly tree-raising and tree-shaped. It is necessary to determine the yield acc.......

Pruning and management of camphor tree

Our country is the origin of the camphor. Since ancient times, there have been traditional habits of planting camphors in front of houses and in the fields in rural areas of China. Axillary buds not only contain high protein, fat, vitamins and oth.......

How to manage black potatoes scientifically

1. Black potato has a short growth period, requires relatively concentrated fertilizer, and applies high-quality organic fertilizer, diammonium phosphate and urea. After fertilization, the soil is deeply cultivated. The black potato planting shoul.......

Mother-in-law's field management considerations

The vitality of the mother-in-law plant is very strong, and the plants with developed roots, the more lush the plants grow on the ground, the high yield and good quality of the harvested products. Therefore, production should be carried out for perennial cultivation. For perennial cultivat.......

Spring ploughing, don't take these routines

Spring is the season of recovery of all things, and it is also an important season for farming and sowing. For the production of crops, the quality of the varieties plays a vital role. Therefore, we must pay attention to the purchase of seeds, the.......