A lot of farmers were standing on a urea pedestal, and it was all over the place, and it was small and thin in autumn. In fact, one week is less fat, one step is less than 30 pounds of single-manufacturance power, and that's a good figure。
When's the best time for a fat chase
Around june 20th to 27th each year, maize spreads between 7 and 12 leaves, just as it moves from an alpine to a estuarine, with the female beginning to stretch and the small flower cells breaking apart. These 10 days have determined how long the back is and how rough it is, which is the most critical window for the entire season。
The fats that were caught up in this period coincided with the nodal point where the pedestals were fed in large quantities. Nitrogen is well supplied, the ear is well divided, the particles are dense, the ears are large in the autumn harvest, and the monolithic is pulled up, much better than early or later。
Why isn't it recommended
It's when people stand on their urea and spread their urea on the surface of their ploughs and cover their fat. It's simple to hear, but the actual seals are often not tight, and as soon as the wind blows through the sun, the ammonia on the naked urea surface goes off, with a 70% discount on fertility。
This year, the northern-producing regions experienced frequent spring and drought, making it easier for fat on the surface to be taken away by dry winds or washed away by concentrated rain. And it was two to eleven percent less than the pit, and then it was reduced by dozens of pounds of grain, and it was as though it had saved more than it had lost。
It's the surest thing to do
This is done by digging pits five to eight centimetres deep with small shovels along the pavilions, concentrating urea into the pit, immediately levelling the soil and covering it all again. So that the manure is buried in the soil without ventilation or tan, and the roots can be stretched。
Because of the closeness of the fertilizer and its heavy coverage, the utilization rate is significantly higher than the application. Multi-terrestrial measurements indicate that the pits are deep enough to produce 20 to 11 per cent more than the tsar, and that an acre of medium fertility plots is a common level, accounting for savings in fat and the highest value for sex。
There's a limit to the fatty chase
The gutter is followed by a three-to-five-centimetre shallow ditch along the gutter, which is ploughed into the gutter and then covered by the earth. The advantage is to save labour, to catch up to 10 acres a day, to be more friendly and to save time on the vast tracts planted。
The problem, however, is that the gutter is a distance from the most dense station in the corn roots, and the roots run in order to get fat and reduce the absorption efficiency. So the land has to be covered and plough twice, or the ammonia will not be fully fertilized and will be pursued for nothing。
What about the amount and number of fat
One acre of low-fertility plots with urea is 21 to 23 kg, medium fertility is 18 to 2 kg, and high fertility is 15 to 17 kg. One acre is to be placed in 35 to 40 kg, with three to four kg of potassium chloride mixed with no potassium fat on the bottom。
The majority of the plots can be traced once between the ninth and eleventh leaves, around the 25th of june. The amount is too large to be broken twice: two thirds of the total fat catch is for the first time and one third for the second. The sandy soil can't keep it fat enough to do so many times, and not at all, so that nitrogen leaks into the deep ground。
With some fatty and a few easy-to-touch pits
For urea or nitrogen-containing compound fertilizers, the amount of spring corn fertilizers is one third of the total, and the difference in sand-based soil fertilizers is one half. Summer corn stabbings are not applied to base fertilizers, and the seedlings are followed by a quick-effect fertiliser of nitrogen phosphorus, which is twice as high as the first。
Depth card between 7 and 10 centimetres, not enough root for more than 10 centimetres, less than 5 centimetres of burning seedlings. Don't go after them until the weather reports. The land is fertilized and long-term yellow leaves, followed by potassium phosphorus, forcing it to mature and not to spend another 10 days in the field to collect it。
Is your plot of land sand or clay, or is it a scavenger or a pit? Let's talk in the comment area and find it useful to pass on some praises to the neighbors who grow corn around them, so as not to leave the family busy for a season。
