Winter wheat spring cultivation management has “four avoid”, in the end “avoid” what?What does the old farmer say?

2022-07-18 0 By

Today is the third day of the first lunar month, tomorrow is the start of spring, to the day of spring.People are still immersed in the festival and joy of the Spring Festival.In the busy New Year’s visit, visiting relatives and friends, and we have a chat about the spring wheat cultivation problem.After all, spring is over, and spring wheat is ready to be cultivated.Today I talk with you about the topic of wheat spring cultivation management “five taboo”, what exactly “taboo”?Specifically, it is wheat spring cultivation management should pay attention to what matters.A “avoid” spring tube catch late.As the saying goes, a day’s plan is in the morning, a year’s plan in spring.Wheat spring cultivation management should be based on a “early” word.The early and late cultivation of wheat in spring is directly related to the yield of wheat in that year.The growth cycle of winter wheat usually lasts from 220 days to 270 days. It goes through sowing, seedling emergence, tillering, overwintering, turning green, booting, heading and blooming, and filling and ripening.General lunar year before sowing, seedling, tillering, to several growing period of overwintering.To the first lunar month, the first is February in the Gregorian calendar. With the arrival of spring, the climate begins to warm up, and winter wheat soon enters the green period, which is an important period for wheat growth and development, as well as the important period for winter wheat to grow and manage in spring.As the old farmer said, “now or never”, at this time, we must act, start early, immediately fill the application of green fertilizer, immediately open ditch asphalt, immediately disease control insect, not to delay the opportunity.If winter wheat is caught late in spring, it will backfire.Two “avoid” fertilizer supplement is partial.According to the determination, every production of 100 jin of wheat, the need for nitrogen, phosphorus, potassium, it can be seen that to achieve high yield of wheat, nitrogen, phosphorus, potassium element fertilizer reasonable collocation, scientific fertilization is very key.How to apply nitrogen, phosphorus and potassium fertilizer to winter wheat after turning green stage?Really achieve reasonable collocation, scientific fertilization?When filling the application of green fertilizer, we should adhere to the “three look” : a look at the color of the wheat seedling yellow green depth;Two look at the wheat seedlings thick and thin;Three see how many wheat seedlings tillering.Understand the deficiency of n, P and K in wheat from the growth of wheat seedlings.From the growth of wheat seedlings, generally thin and erect wheat seedlings, less tillering, leaf tip withered yellow, belong to the phenomenon of serious lack of nitrogen, per mu need to apply urea 8~10 kg, or ammonium bicarbonate 20~25 kg.The leaves of wheat seedlings are dark green and dull, with purple at the leaf tip or serious purple in the leaf sheath. The development from the leaf tip to the base and from the old leaf to the young leaf indicates that phosphorus deficiency is serious and phosphorus supplement is needed.18~25 kilograms of superphosphate can be applied, or 150 ~200 grams of potassium dihydrogen phosphate, 75 kilograms of water spray.In the later stage, 2%-3% calcium superphosphate liquid or 0.2%-0.3% potassium dihydrogen phosphate solution can also be sprayed on the leaves.Lack of potassium wheat seedlings, not only slow growth, stem short, and easy to rot, black root phenomenon, leaves will also appear dark green, blue green, weak sagging leaves, leaf tip and leaf edge withered yellow, the whole leaf dead.Even plant atrophy, lodging, premature senility and other symptoms.If this happens, 15 to 18 kg of potassium sulfate or 100 kg of plant and wood ash can be applied per mu of wheat field. Alternatively, 5% to 10% of plant and wood ash will be applied to fertilizate the leaves.By supplementing various element fertilizers in time, the problem of wheat growth “partial fertilizer” and lack of fertilizer can be solved, which lays a good foundation for high yield.Three “avoid” more waterlogging in wheat fields.Wheat is a plant that likes drought and is afraid of being soiled. Spring and summer are the season of abundant rain every year, and wheat fields are prone to waterlogging.Wheat field water serious, will induce the occurrence of a variety of diseases and insect pests, do a good job in the wheat field ditch drain, the control of wheat waterlogging, wheat yield and harvest significance is great.Therefore, when we enter the spring, it is necessary to do a good job as early as possible in the wheat field ditch drainage and waterlogging prevention.In the north, the rain is relatively less, the wheat field waterlogging harm will be better, especially in the south, the spring rain is particularly much, if the wheat field waterlogging is serious, it will lead to the wheat field disease and insect pests, resulting in wheat production.Four “avoid” disease and insect pest control is not timely.There is much rain in spring, and many kinds of pathogens such as wheat sheath blight, root rot, stem base disease and take-all are easily induced in the green period of wheat.At the same time, with the rise of temperature, wheat aphid, red spider, as well as underground pests, tiger, needle pests and other pests also began to harm, if not early, timely prevention and control of these diseases and pests, will also bring adverse effects on wheat yield.Therefore, it is very important to prevent and control wheat diseases and insect pests in time.For these diseases of wheat, we can use 5% chito-oligosaccharide mixed with water 600 times to spray the stem and leaf of wheat evenly, once every 10 days, 3 times in a row can get better control effect.Integrated pest and disease control can also be adopted.You can get 22% cezerazine per acre.Hfc-8ml +15% cupric 70g, sprayed with water.Triazolone + chlorothyme or propyl cyclozole, or flucyclozole mixed with water can also be used, once every 8 to 10 days, spray twice.Still can use every mu to use 2.5% biphenythrin 80 milliliter +25% cyanene fungus ester 10 mg, add water spray method, undertake prevention and control.Of course, there are many ways to prevent and control wheat diseases and insect pests. Here are just a few examples for reference only.In short, we in the spring wheat cultivation management, to lose no time to grasp the production link, should be sooner rather than later;On the fertilizer, should not be partial, and timely do a good job in the wheat field ditch asphalt, timely do a good job in the prevention and control of various diseases and insect pests, for the Spring Festival harvest, but also for the whole year to lay a solid foundation for harvest..