Isoproturon is a commonly used herbicide in wheat fields and can control grassy weeds and some broad-leaved weeds. Currently, there are several products registered in wheat fields in China. 50% isoprenone wettable powder is the main type of weed control in wheat fields in recent years.

The characteristics of isoproturon are mainly manifested in four aspects: First, the broad spectrum of killing. Isoproturon has good control effect on most grassy weeds in wheat fields such as Mai Auntie, Japanese Acacia, Hardgrass, and Wild Oats, especially for the control of malignant weeds of Poisonous weeds that have rapidly increased population in recent years. . Although the drug has been used for many years in production, it is not yet clear that weeds are resistant to isoproturon. The second is that the application period is wide. This medicine combines the effects of soil sealing treatment and stem and leaf treatment. It can be applied from wheat sowing to wheat seedling before jointing. The third is the short residue of the drug in the soil, which is safe for the crop after the crop. Fourth, the cost of medication is moderate, and farmers are easy to accept.

In order to realize the best control effect of Isoproturon, quasi-time, quasi-drug amount, sufficient amount of water, and uniform spray must be used during use. The best application period of isoproturon is the peak period of pre-winter weeds emergence. In spring, when weeds are used, weeds are too old. As a remedial measure, we can obtain higher control effect by using 62.5 grams of pure drug per acre before winter. Water use per mu is guaranteed to be over 30 kg.

Isoproturon has good safety for wheat, but it will reduce the antifreeze ability of wheat seedlings. Cold flow after treatment will easily produce “frozen phytotoxicity,” causing yellowing and growth inhibition of wheat seedlings. This type of situation occurs every year. The use of iprolong in wheat fields should avoid the first winter cold in the winter to ensure the safety of medication. After the first cold weather, wheat was subjected to low-temperature exercise and its anti-freezing ability was enhanced. The fields that had not been used in the previous period could be controlled by the “cold tail warmer”. This can ensure the weeding effect and the safety of the wheat seedlings. In addition, the interplanting of wheat in the paddy field is weak during the symbiosis with rice, and the drug resistance is poor. Therefore, the application of isoproturon should be carried out after rice is harvested after the rice is harvested. The plot must be drained and used after curing to prevent "wet damage."

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