Every delay costs money
Published 09/09/2015 | 02:30
The long grain fill period has paid a grain yield dividend but at the expense of a delayed harvest.
Early September brought cooler conditions with frequent showers and very few opportunities for harvest. While there has been very little straw breakdown so far, crops sprayed pre-harvest with glyphosate are at risk and must be prioritised.
The harvest pressure is over for farmers who had winter barley as their main crop so consider looking to them to help with harvesting spring crops. The sooner you call on them the less risk of harvest losses and the sooner you can get on with autumn sowings.
Every delay at this stage costs you money through either harvest losses or poorer establishment of winter crops.
The shorter the period between grain harvest and seed sowing, the shorter the period in which to control weed seeds and volunteers. This year's moist soil conditions should result in a high rate of early weed seed germination and a great opportunity for pre-sowing herbicide.
However, moist soil conditions will also reduce the effectiveness of stubble cultivations in killing germinated weeds.
Delay sowing dirty fields as long as possible (at least one month), so as to spray with glyphosate before sowing. This is particularly important if you have perennial weeds, wild oats or brome.
Heavy rainfall on August 22 and 23 prevented the pre-emerge herbicide application on freshly sown oilseed rape, which had to be delayed until the seed leaves were fully extended.