Herbicide dosage is closely related to soil texture, humidity, temperature, light conditions, and planting environment. However, changes in soil texture are often overlooked during herbicide application.
With continuous agricultural production, soil texture changes every year, but it is often overlooked. At present, the majority of farmland has been using only chemical fertilizers for many years, soil compaction, and organic matter content has dropped significantly, and some even reach less than 3%.
In the use of herbicides, for example, the use of Atrazine in the “Northeast region where soil organic matter content is greater than 3%-6%...†seems to be correct. However, since the content of organic matter has been reduced, the equivalent of excessive use according to the instructions, the weeding effect is still very good. However, in the long run, the invisibility brought about by the past will be gradually formed: As the content of organic matter is reduced and the number of microorganisms is small, the biodegradability of residual pesticides is seriously degraded, and after various types of drug residues have accumulated to a certain amount, phytotoxicity begins to appear.
The greenhouse a filled with equipment like hydroponic, irrigation, auxiliary lighting ,temperature and humidity control and also may be automatically controlled by a computer to maximize potential growth.
Hydroponics can be used to make the most use of the interior space. The relatively closed environment of a greenhouse has its own unique management requirements, compared with outdoor production. Pests and diseases, and extremes of heat and humidity, have to be controlled, and irrigation is necessary to provide water. Most greenhouses use sprinklers or drip lines. Significant inputs of heat and light may be required, particularly with winter production of warm-weather vegetables.
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