Application of agricultural residues (residues of cover crops) in sustainable weed control

One of the most important agricultural wastes is the remains of crops and fodder left on the soil surface. Positive control of weeds by plant residues has been mentioned in many reviews. Experimental treatments include mixed cultivation of Sun hemp (Crotalaria juncea), Oats (Avena sativa), Daikon radish (Raphanus sativus var. Longipinnatus), Crimson Clover (Trifolium incarnatum), Sunflower (Helianthus annuus), and Cowpea (Vigna unguiculata). The results of this study showed that seven weeks after the date of planting the cover crops, the weeds decreased significantly (۹۶.۱۶%). While after the winter passed and ۲۰ weeks passed, an increase of ۷۴.۸۶% in weeds was observed in the field. The results of this study indicated that with the reduction of the biomass of cover crops on the soil surface over time, the biomass of weeds increases.

Keywords:

Mixed cropping , Residue , Sustainable agriculture