The period during which winter wheat grows from returning green to flagging is the spring growth stage, which generally lasts for 50-60 days and is the key period for the formation of yield. Therefore, the good management of wheat in the spring will play a very important role in increasing wheat yield. The most important thing is to do a good job in fertilizer and water management.
In the returning green period of winter wheat, weak seedlings with poor fertility in the middle-grade wheat fields and high-yield wheat fields, especially those with no winter fertilizers, should be given back green manure, and whether they should return to Qingshui should be flexibly controlled according to public opinion. For winter wheat with more precipitation or winter water before winter and winter, if the soil moisture is suitable in spring, it can only be returned to green manure instead of green water, and generally it is topdressing in the soil return season. If the soil moisture is poor, it must be combined with pouring green water. Each 1/15 hectare applies 10-15 kg of standard nitrogen fertilizer and deep ditch. High-yield, high-yield wheat seedlings or strong seedlings must be controlled during the return period. For the plots without applying phosphate fertilizer, potash fertilizer or insufficient application amount, 30-40 kg of standard phosphate fertilizer and 10-15 kg of potassium fertilizer may be applied every 1/15 ha of early spring.
During the period of getting up, in the case of low-yielding wheat and high-yielding wheat fields, late-seeping and weak-seedlings, de-fertilized and weak-seedlings, and old and weak-seedlings were not fertilized or promoted in the returning green period. Pouring water; on the basis of fine seedlings for seeding high-yield wheat fields, based on the control of greening, the main period should be the fertilizer and water main attack period. Early fertilization moderate or less, wheat seedlings have no trend of long growth, fertilization should be early and heavy, and vice versa should be late and light; for high-fertilizer, high-yield wheat, or better soil fertility, early fertilization more, larger groups and have prosperous In the long-term wheat field, the water should be poured late or not poured, and the fertilizer should be applied late or not. Over-emergence Miao must also be controlled by measures such as repression, squat cutting, etc. For late buckwheat planted by a single stalk cultivation method, fertilizer and water should be controlled at the beginning of the crop. Generally about 15-20 kilograms of standard nitrogen fertilizer is applied every 1/15 hectares during the start-up period.
During the jointing stage, seedlings and semi-proliferation seedlings of fine-producing high-yield wheat fields, and strong seedlings planted with general cultivation methods and late buckwheat planted with a single-cultivation cultivation method should be timely watered during the jointing stage and replanted with jointing fertilizer. For those wheat fields with faded leaf color, there is a trend of defertilization, early application and reuse of joint fertilizer, and pouring of jointing water. For wheat fields with deep green leaves, no yellow appearance, and large drooping leaves, water in the late, with little or no fertilization. In wheat fields that have been replanted, fertilizers should be applied as appropriate to the changes in the wheat seedlings. After the return to Qing and the promotion period, the wheat field with wheat seedlings that have grown to strong or prosperous, can be watered without fertilizer, or watered late, with less fertilization. The wheat field still exhibiting fertilizer deficiency and large groups can be reused for jointing fertilizer; In wheat fields where there are not enough groups and where the number of panicles is small, especially those that grow late, we must increase the amount of fertilizer. Jointing period is generally about 25 kg of standard nitrogen fertilizer every 1/15 hectares.
In addition to doing a good job in fertilizer and water management, we must also carry out repression. Do a good job of pest monitoring and reporting, and conduct comprehensive prevention and control. For wheat fields with large groups and lodging tendencies, in addition to the use of comprehensive management measures, they must also apply plant growth regulators during the period from turning green to getting up. Dosage: 1/15 hectares of paclobutrazol 15% powder 30-40 grams, 30 kilograms of water; every 1/15 hectares of chloracetic chloride use 95% crystals 60 grams, 30 kilograms of water; Twenty-five hectares are used with 20 milliliters and 30 kilograms of water; and Chemical Controls 2 with 30-35 milliliters per 1/15 hectares, spraying 40-50 kilograms of water. Pay attention to uniform spraying and prevent re-ejection and leakage.
In the returning green period of winter wheat, weak seedlings with poor fertility in the middle-grade wheat fields and high-yield wheat fields, especially those with no winter fertilizers, should be given back green manure, and whether they should return to Qingshui should be flexibly controlled according to public opinion. For winter wheat with more precipitation or winter water before winter and winter, if the soil moisture is suitable in spring, it can only be returned to green manure instead of green water, and generally it is topdressing in the soil return season. If the soil moisture is poor, it must be combined with pouring green water. Each 1/15 hectare applies 10-15 kg of standard nitrogen fertilizer and deep ditch. High-yield, high-yield wheat seedlings or strong seedlings must be controlled during the return period. For the plots without applying phosphate fertilizer, potash fertilizer or insufficient application amount, 30-40 kg of standard phosphate fertilizer and 10-15 kg of potassium fertilizer may be applied every 1/15 ha of early spring.
During the period of getting up, in the case of low-yielding wheat and high-yielding wheat fields, late-seeping and weak-seedlings, de-fertilized and weak-seedlings, and old and weak-seedlings were not fertilized or promoted in the returning green period. Pouring water; on the basis of fine seedlings for seeding high-yield wheat fields, based on the control of greening, the main period should be the fertilizer and water main attack period. Early fertilization moderate or less, wheat seedlings have no trend of long growth, fertilization should be early and heavy, and vice versa should be late and light; for high-fertilizer, high-yield wheat, or better soil fertility, early fertilization more, larger groups and have prosperous In the long-term wheat field, the water should be poured late or not poured, and the fertilizer should be applied late or not. Over-emergence Miao must also be controlled by measures such as repression, squat cutting, etc. For late buckwheat planted by a single stalk cultivation method, fertilizer and water should be controlled at the beginning of the crop. Generally about 15-20 kilograms of standard nitrogen fertilizer is applied every 1/15 hectares during the start-up period.
During the jointing stage, seedlings and semi-proliferation seedlings of fine-producing high-yield wheat fields, and strong seedlings planted with general cultivation methods and late buckwheat planted with a single-cultivation cultivation method should be timely watered during the jointing stage and replanted with jointing fertilizer. For those wheat fields with faded leaf color, there is a trend of defertilization, early application and reuse of joint fertilizer, and pouring of jointing water. For wheat fields with deep green leaves, no yellow appearance, and large drooping leaves, water in the late, with little or no fertilization. In wheat fields that have been replanted, fertilizers should be applied as appropriate to the changes in the wheat seedlings. After the return to Qing and the promotion period, the wheat field with wheat seedlings that have grown to strong or prosperous, can be watered without fertilizer, or watered late, with less fertilization. The wheat field still exhibiting fertilizer deficiency and large groups can be reused for jointing fertilizer; In wheat fields where there are not enough groups and where the number of panicles is small, especially those that grow late, we must increase the amount of fertilizer. Jointing period is generally about 25 kg of standard nitrogen fertilizer every 1/15 hectares.
In addition to doing a good job in fertilizer and water management, we must also carry out repression. Do a good job of pest monitoring and reporting, and conduct comprehensive prevention and control. For wheat fields with large groups and lodging tendencies, in addition to the use of comprehensive management measures, they must also apply plant growth regulators during the period from turning green to getting up. Dosage: 1/15 hectares of paclobutrazol 15% powder 30-40 grams, 30 kilograms of water; every 1/15 hectares of chloracetic chloride use 95% crystals 60 grams, 30 kilograms of water; Twenty-five hectares are used with 20 milliliters and 30 kilograms of water; and Chemical Controls 2 with 30-35 milliliters per 1/15 hectares, spraying 40-50 kilograms of water. Pay attention to uniform spraying and prevent re-ejection and leakage.
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