Delay in weedicides leads to loss in yield: Experts
Weeds are a serious problem in the wheat crop and farmers usually apply herbicides or weedicides to control them; however, many farmers tend to ignore the advice of experts as far as the timely application of these chemicals is concerned.punjab Updated: Dec 15, 2014 13:51 IST
Weeds are a serious problem in the wheat crop and farmers usually apply herbicides or weedicides to control them; however, many farmers tend to ignore the advice of experts as far as the timely application of these chemicals is concerned.
Due to several misconceptions, many farmers continue to delay the application of herbicides or weedicides beyond the recommended time. Instead of applying them after 35 to 45 days of the sowing of the crop at the maximum, they delay them for over two months, which leads to damage to the crop and loss of nutrients.
“The application time of weedicides to effectively control weeds in the wheat crop is between 35 to 45 days on the early wheat crop, while it could be a bit delayed in the case of the late-sown variety, particularly after cotton, because it takes longer to grow. But, farmers must not delay it beyond the recommended period under any circumstances,” advises Atma Singh Sidhu, chief agriculture officer, Farikdot.
“Farmers continue to delay the application of weedicides because they think that cloudy or misty weather in December is not ideal for the effectiveness of the chemicals on the control of weeds.
Sometimes, they delay them thinking that more weeds would grow after the first irrigation and later on. But, it all leads to losses as weeds absorb nutrients from the soil and become a serious problem,” says Dharam Singh, a farmer from Panjgrain Kalan village.Many farmers can be seen spraying herbicides in wheat in January, when the crop is about 75-day-old.
“The farmers should only take care that it should not rain within 24 hours of the spray of weedicides as it may wash out the chemicals and may lessen their efficacy. Otherwise, we recommend the spray in time for a better crop and saving the nutrient value. Besides, the older weeds cannot be effectively killed by the recommended dosages. We try our best to make them aware to effectively control the weeds,” said Bhupesh Joshi, deputy project director of agriculture technology management agency (ATMA) Faridkot.
The farmers should also use flood jet nozzles to spray herbicides for more effective control of theirs, Joshi added.