Correctly adjust the selection to avoid phytotoxicity residues

In large-area applications of long-acting herbicides, the following should be noted when properly selecting the land:
In the second year, soybeans and wheat can only be planted in the plots of soybeans and soybeans. Can not grow cabbage, rape, cucumber, potato, eggplant, pepper, tomato, beet, watermelon, sorghum and other crops within three years, but also pay attention to the field soil that has been applied to Puschte and Beansulfuron as rice. Bedding soil for crops such as beets and vegetables.
In the second year, Mai Mayu used the plot of soybean sulfonate, and could not grow beet, potato, tobacco, melon, vegetable, millet, sorghum, sunflower and other crops.
If the amount of corn in the corn is more than 130 grams, the second year can not grow rice, soybeans, wheat, sugar beets, vegetables and other crops. Pay special attention to the soil organic matter content above 3%, except for corn and sorghum. After crops can cause phytotoxicity.
In the implementation of drought-reducing water, it is necessary to pay attention to the selection of plots where the long-lasting herbicide has not been applied. For example, the plots of Puschte, Beansulfuron, Atrazine and other pesticides have not been used before, and can not be used as rice and alfalfa. Can't do live field and nursery field.

Author: Heilongjiang Raohe county farming appoint Chief Agronomist Dongguang Lin
Source: Farmers Daily

Door Viewers

The door observer is a small optical instrument installed on the door of a residence, which is convenient for residents to observe the outdoor situation. Has become a necessity for home safety.
It is composed of a concave lens (objective lens) and a convex lens. The focal length of the objective lens is extremely short, it makes the outdoor person or object into an upright and reduced virtual image, which falls just within the focus of the eyepiece, and finally a reduced upright virtual image is obtained, which is exactly at the clear viewing distance of the human eye. Nearby, you can see the situation outside the door clearly.

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