On the first place, the document shows how the timing of irrigation after sowing can be a key factor to control Polygonum aviculare. It is suggested to sow, spray the pre-emergence herbicide and start to irrigate in short intervals but frequently to achieve a better control of this weed. The efficiency of the herbicide improved a 7% following this procedure compared to delaying irrigation.
Besides P. aviculare control, the document suggests two programs to control the most frequent weeds in spring sugar beet, namely, the classical and the innovative. The innovative program suggests spraying with the conventional pre-emergence herbicide but using only half the dosage. The other half of the dosage must be applied as a very early post-emergence treatment, 15 days after sowing (depending on the temperature and moisture). With this system, efficacy of the spraying is the same as with the classical program but 13% of the herbicide costs can be saved. The classical program and all recommended herbicides are also described in the document.
Finally, the document also includes recommendations to control weeds which may require specific control methods such as Salsola kali, Abutilon teophrasti, thisles, grasses such as Avena spp. or Echinocloa crus-galli, herbicide resistant species and Cuscuta.
