Fertilization and return to green fertilizer should be applied by seedlings. For the 2 ~ 3 types of seedlings that have weak growth before winter or poor soil fertility and early sowing of long-term de-fertilized wheat seedlings, early application and re-application of green manure should be applied, which can be applied as the ground surface begins to thaw. Generally, 10 ~ 15 kg of diammonium phosphate can be applied per acre.
Watering Where the winter water is not irrigated before winter or the winter irrigation is too early, and the wheat fields that are relatively dry at the time of returning to green, you can properly return to the water early, but the amount of water should not be too large, and it should not be flooded. Because the wheat field returned to Qingshui was thawed early, the lower layer of soil was not completely thawed, and large water easily caused stagnant water roots, new roots did not emerge, development was delayed, and "small old seedlings" were easily formed. In serious cases, there was a risk of dead seedlings. Where the winter water is poured in a timely manner, the wheat field with strong growth of wheat seedlings can be poured back into the green water appropriately.
Wheat field weeding Chemical weeding in wheat field, with less labor and high efficiency. Fields dominated by broadleaf weeds use 5-8 grams of moisten (36% oxadiazon · bensulfuron) wettable powder or 10-12 grams of 10% oxadiazon or musida (45.9 per mu). % Difluoro · dioctyl fat) suspending agent 30 ~ 40g water 30kg for spraying leaves and stems; grass weeds re-transmitting fields, 3% methyldisulfonic acid should be used in fields that mainly produce knot wheat Emulsion EC (Shima) 25 ~ 30ml / mu; Fields that are mainly ryegrass can be sprayed with 5% ethynyl herbicide 80ml / mu and sprayed with stems and leaves against 30kg of water; broadleaf weeds For wheat fields mixed with gramineous weeds, choose 40% dry suspension of 2% acetochlor and 10 grams of auxiliaries + 3% methyl disulfuron oil suspension 30 to 30 kg of water per acre for spraying on stems and leaves. . When using herbicides, be sure to dilute with water and use the second dilution method. After mixing thoroughly, spray before spraying. The spray must be uniform without re-spraying or leaking.
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