Glufosinate is also one of the world's largest tonnage herbicides . Compared with glyphosate, glufosinate has better removal effect on some perennial malignant weeds and is more competitive in the field of high economic value crops. It is the only substitute for glyphosate. However, some farmers recently reported to the Xiaobian that why glufosinate is sometimes not good, which leads to weeds in the field. What is the reason for the poor herbicidal effect of glufosinate? The following is a brief introduction of the agricultural materials. Let's have a look.
Why is glufosinate sometimes bad for weeding?
The herbicidal effect of glufosinate is mainly affected by three factors: humidity, temperature and light.
The effect of humidity: the climate is dry, the plants in order to reduce transpiration, close the pores, leaf curl, leaf skin thickening, is not conducive to the absorption of glufosinate, affecting the efficacy; air humid, plant surface wax layer remains wet, open pores It enhances the absorption of glufosinate by plants and facilitates the exertion of the drug.
Temperature: Under low temperature conditions, the ability of glufosinate to pass through the stratum corneum and cell membrane is reduced, thereby affecting the herbicidal effect. With the increase of temperature, the herbicidal effect of glufosinate increases. It is recommended to use the temperature above 15 degrees Celsius, and the low temperature effect is not good.
Illumination: When the light conditions are good, the transpiration of plants is strong, which is beneficial to the efficacy of glufosinate.
Can glufosinate be used for weeding after corn seedlings?
Glufosinate can be used for weeding after corn seedlings, but the medication is strict. After the corn seedlings are weeded in the row, in the corn 10 leaves, when the weather is no wind or breeze, the spray head is sprayed with a directional spray, and does not drift to the corn. Although the systemic effect of glufosinate is not strong, there is still a certain internal Suction, need to pay attention to the occurrence of drift phytotoxicity.
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