ਪੈਸੇ ਵੀ ਘੱਟ ਤੇ ਨਦੀਨ ਵੀ ਖ਼ਤਮ, Gehu me kharpatwar nashak dawa, herbicide for wheat crop

Gullidanda has been the major weed of wheat crop, and, in general, herbicides are used to manage this weed in the state. A visit to farmers’ field and interaction with farmers revealed herbicide injury on wheat plants. The herbicides injury on wheat was recorded mostly in fields where herbicides have been used at higher doses, sprayed more than once in the same field, herbicide used at wrong timing and/ or wrong method of spray. The herbicide spray at 30 to 35 days of sowing provide best control of weeds and also wheat crop has enough time to recover from herbicide injury, if any, when herbicide applied at this stage. Added to this, warm and sunny days following herbicide application result in better and fast control of weeds and more safety to wheat crop. The herbicide must be sprayed using uniformly in the field, at recommended dose, using flat fan nozzle and by dissolving in 150 litres of water per acre. If herbicides containing metribuzin (like Shagun, ACM-9) and other herbicides like Atlantis are sprayed at an early stage of wheat, especially before first irrigation, these herbicides are likely to cause severe crop injury and may kill wheat plants also; these herbicides may injure wheat plants also if applied at high soil moisture. Similarly, if herbicide is sprayed at later stages of wheat, in this case also, there are more chances of crop injury as more herbicide is retained by wheat leaves and the crop has less time to recover from herbicide injury. The spray of herbicide with ‘gun sprayer’ or its broadcast application by mixing with urea, in general, results in uneven distribution of the herbicide which causes herbicide injury on wheat plants and poor weed control also, which reduce crop yield. The farmers are advised not to use herbicides which have not given good results during previous year/s and choose alternate herbicides. The farmers who have adopted cultural methods, like wheat sown with Happy Seeder or have done weeding with wheel hand hoe, are more comfortable in management of gullidanda, as compared to farmers who are dependent exclusively on herbicides. The farmers are advised to adopt integrated approach, cultural practices along with herbicides, for effective management of gullidanda and other weeds, while ensuring safety to wheat crop.
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Charanjit Singh Sangatpuria