Spring wheat field management skillful application of spring wheat field management is the main period for wheat to seize the number of ears and grains per ear, the theme of the management of early spring wheat fields is to promote the tillers, keep the strong seedlings, and contend groups. At the same time, spring is also a frequent occurrence of diseases and pests, so the focus of spring wheat management is to control pests and diseases. In early spring wheat disease and insect pest control focuses on sheath blight, spider mites, and weeds in wheat fields. Based on the basic characteristics of the early spring wheat ecological structure, it focuses on the protection and utilization of beneficial organisms in wheat fields, and is based on agricultural control, supplemented by chemical control. The prevention measures are as follows:
1 Wheat sheath blight: The prevention and control index is 15% of the diseased plants in the field, generally 1 mu of spring rain 1 capsule + 5% of gangokinemycin
100-150ml or 20% of powdered fennel emulsion 50ml spray on water 30kg, spray again every 10-15 days.
2 Wheat bran: When the ratio of beneficial insects to wheat stubble exceeds 1:100 per hundred strains, the amount of alfalfa is more than 500.
3 wheat spider: wheat spiders inhabit more than near the roots during the day, watering after 9 pm to drown it. When investigating more than 200 pairs of wheat spiders with 33 cm double lines, they can be treated with 1,000-1500 times quicker or no strips, and sprayed once every 7 days to completely eradicate.
4 wheat midge: The midge usually lives in the soil, short-term damage to the wheat ear. In late April, 50% phoxim or 40% methyl isothioate can be used to make arsenopyrite at 250 grams per mu, and the control effect can reach 90%.
5 Wheat rust and powdery mildew: In areas where the disease is serious and the epidemic is obvious, it is necessary to fight drugs in time to control the spread. Use 15% triadimef 50-75 g/mu for each mu and add 10-12 kg of water. If the spraying is later, per acre The dosage can be increased to 70-100g.
6 Preventing and Mitigating Wheat Freeze Injury: This spring, with frequent late spring and cold springs, spraying the plant cell activating agent of Chunyu No. 1 can effectively increase the flow of protoplasm, increase the permeability of cell membrane, significantly increase the cold resistance of wheat, and reduce or eliminate wheat. Freezing damage accelerates the transfer of yellow leaves to green leaves, which is conducive to the rapid return of green wheat to jointing, strong growth, and high wheat yield.
In addition, attention should be paid to the control of wheat yellow dwarf disease, bushy dwarf disease, wheat leaf bee, and underground pests.
(Contributed by: Senior Agronomist Ban Yimin)
1 Wheat sheath blight: The prevention and control index is 15% of the diseased plants in the field, generally 1 mu of spring rain 1 capsule + 5% of gangokinemycin
100-150ml or 20% of powdered fennel emulsion 50ml spray on water 30kg, spray again every 10-15 days.
2 Wheat bran: When the ratio of beneficial insects to wheat stubble exceeds 1:100 per hundred strains, the amount of alfalfa is more than 500.
3 wheat spider: wheat spiders inhabit more than near the roots during the day, watering after 9 pm to drown it. When investigating more than 200 pairs of wheat spiders with 33 cm double lines, they can be treated with 1,000-1500 times quicker or no strips, and sprayed once every 7 days to completely eradicate.
4 wheat midge: The midge usually lives in the soil, short-term damage to the wheat ear. In late April, 50% phoxim or 40% methyl isothioate can be used to make arsenopyrite at 250 grams per mu, and the control effect can reach 90%.
5 Wheat rust and powdery mildew: In areas where the disease is serious and the epidemic is obvious, it is necessary to fight drugs in time to control the spread. Use 15% triadimef 50-75 g/mu for each mu and add 10-12 kg of water. If the spraying is later, per acre The dosage can be increased to 70-100g.
6 Preventing and Mitigating Wheat Freeze Injury: This spring, with frequent late spring and cold springs, spraying the plant cell activating agent of Chunyu No. 1 can effectively increase the flow of protoplasm, increase the permeability of cell membrane, significantly increase the cold resistance of wheat, and reduce or eliminate wheat. Freezing damage accelerates the transfer of yellow leaves to green leaves, which is conducive to the rapid return of green wheat to jointing, strong growth, and high wheat yield.
In addition, attention should be paid to the control of wheat yellow dwarf disease, bushy dwarf disease, wheat leaf bee, and underground pests.
(Contributed by: Senior Agronomist Ban Yimin)
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