In recent years, farmers’ telephones have reported that the prevention and control of Laozizi, Jiegucao and spines of corn fields are very stubborn and difficult to control. I believe that the control of these weeds cannot be eradicated by drugs alone, but mainly depends on agricultural control methods. In the spring, appropriate measures can be taken. "Old Bozi" is a scientific name of Xanthium, annual herb, 30-90 cm in height. Flowering from July to October, fruiting from August to November. Born in wasteland, hillside, etc. Distributed throughout the country. It is a broad-leaved weed in the cornfield. Agricultural control methods: The application of decomposed organic fertilizers to prevent weed seeds from entering the field; removal of weeds at the fields and roadsides to prevent weeds from invading the farmland; and autumn plowing to reduce the amount of weeds in the field. After the corn is harvested, it is ploughed in time to bury the weed seeds that have entered the field deeply in the soil to reduce its emergence. Before sowing, the soil surface is fully ploughed, dried for 1-2 days, and the grass buds are dead. Reseeding can effectively prevent the occurrence of toave grass; reasonable rotation, restrict the occurrence of topin grass; manual shoveling, interplanting weeding, corn planting later, by sowing before weeding and pre-emergence deforestation and other measures, can prevent one year Weeds. From the 4-5 leaf stage of maize, 2-3 times of cultivating in the cultivating soil can be started, and weeds can be buried between the plants to cut the stem. Once every 10-15 days until the corn ridge, can effectively prevent the harm of duck grass. Chemical weeding methods: pre-emergence after sowing, supplemented by stem and leaf treatments. After sowing, corn seedlings were pre-emerged with herbicides such as Atrazine, Praxacarb and others. Or post-emergence treatment with astragaloside, jade farm stems and leaves.
The name of the Bone Spermology is E. perennial grass. The rhizomes are thick and short, with dark brown roots on the nodes. The method of prevention and treatment is the same as that of "old cubeba".
Prickly peas were originally known as small quail, also known as cat pheasant, burdock radish, thaliana, and are perennial herbs of the Asteraceae family. Its stems are hollow, 50 cm high, cylindrical, hard and pilose. Often grow on the roadside, ditch bank, field.
Spiked vegetables have become a major hazard to weeds in corn fields in recent years. Agricultural control methods: The application of decomposed organic fertilizers to prevent weed seeds from entering the field; removal of weeds at the fields and roadsides to prevent weeds from invading the farmland; and autumn plowing to reduce the amount of weeds in the field. After the corn is harvested, it is ploughed in time to bury the weed seeds that have entered the field deeply in the soil to reduce the emergence of seedlings. Before sowing, the soil surface is fully ploughed and dried for 1-2 days after the grass buds die. Re-seeding can effectively prevent the occurrence of toave grass; reasonable rotation, restricting the occurrence of spikelets; artificial spade shovel, weeding and weeding. Chemical control: 70% of 2,4-D butyl ester EC can be used 40-50 grams, water 30-40 kg, spray after the weeds unearthed.
fine chemicals,fine chemicals corporation,fine chemical companies
Shaanxi YXchuang Biotechnology Co., Ltd , https://www.peptide-nootropics.com