In fact, corn is a common crop, and many farmers are planting it. However, it is difficult to say whether it is a high-yield planting small series. Because corn planting will produce a lot of misunderstandings, the following is a summary of the misunderstanding of corn planting and solutions. Check if you win the bid.
Recently, farmers have issued such questions. They are also planting, irrigating, fertilizing, weeding. Why can other people’s corn be high-yielding? Experts pointed out the few planting errors in the management of corn, and see which ones you committed?
Mistakes sowing
Ordinary seeds are used for single seeding. Many farmers do not pay attention to the seeds of single-seeding seeds. They think that ordinary seeds can be used for picking up small pieces, and the same seeds can be used for single seeding. In fact, high-quality seeds should be of high purity, not lower than 98%, and the bud rate should be high, not lower than 95%. Most ordinary corn seeds cannot meet this requirement. It is impossible to pick one by hand. The row spacing setting is unscientific, and there is no reasonable arrangement of planting density. It is always considered that the thick ratio is rare. Corn can only produce the highest yield at a reasonable density, and the density is too small to produce high yield. If the density is too large, it will cause lodging, empty rods, and sickness, which will cause different degrees of production reduction; the fertilizer is good. It is believed that the more the fertilizer is applied, the better the absorption of the crop is not considered, and the amount of fertilizer is reasonably arranged. In fact, the good application of seeds and fertilizers will cause problems in the burning of chemical fertilizers. The use of chemical fertilizers will be more serious. The water will be flooded with water. The deeper the sowing, the better the seeding will be. Not breathing and smashing.
Misunderstanding of herbicide use
Every year, farmers have reduced corn production due to herbicides. The fundamental reason is farmers herbicides do not understand, did not acquire the relevant knowledge. Corn herbicide does not know the type and duration of use, indiscriminate use of indiscriminate spraying; organophosphorus pesticides and herbicides and fertilizer mix, FIG labor; not according to the instructions to use, free to increase the dose; freeloaders buy-out type herbicides. ; FIG fast motorized sprayer using spraying; not run out of the drug then spray it.
Pre-emergence weed control plots should note the following aspects: First, soil moisture to be larger. After the corn planting, after pouring or spraying rain, such as drought or soil after the grass grow, substantially unusable. Second, the application time of the herbicide is the earliest. When the efficacy period is over, the weeds will soon grow up, and the second herbicide needs to be sprayed, which wastes manpower and material resources. Third, the herbicides on the ground are easy to make the leaves of the corn yellow, especially when used at high temperatures, which is easy to damage the roots. In view of the above problems, weeding is now being replaced by post-emergence weeding.
Mistakes in using fertilizer
Misunderstanding of urea use. Urea should not be used in this way: Do not mix with ammonium bicarbonate, which will cause slow conversion of urea and cause loss of volatilization and loss; instead of surface application, most of the nitrogen is volatilized during the conversion of urea to ammonia. The utilization rate is only 30%; do not make seed fertilizer, a small amount of biuret contained in urea will poison the seeds and seedlings, affecting the growth of seed germination box seedlings. Do not use immediately after watering urea, urea conversion needs 2-10 days to complete, watering immediately because of urea dissolved in water and with water loss.
Excessive fertilization, I believe that more fertilization can make more food. Excessive fertilization can cause residual fertilizer and soil compaction. Adding organic fertilizer to farmyard manure and appropriate application of foliar fertilizer such as zinc fertilizer have obvious effects on corn yield increase.
The time of use of controlled release fertilizer. The controlled release fertilizer (slow release fertilizer) has the composition of controlling the release time of nitrogen fertilizer in the fertilizer. The nitrogen contained in the fertilizer will be slowly released according to different corn growth stages, so it has the characteristics of one fertilization and one season. Qualified controlled release fertilizers ensure that the corn is not de-fertilized in the later stages of growth. The use time of controlled release fertilizer is best 20 days after corn emergence. Ditching is applied.
Mistakes in harvest time
Usually based on friends of farmers harvest are: white on the familiar, can be harvested; cut to a collapse collapse, and late harvest can effect the same; let's close family income, to close late will lose. In fact, corn from pollination finished to a period of about cooked needs 52 days, has just completed corn white milky stage, dough stage takes about 10 days, this stage is the critical period of maize grain weight form, but also have an important impact on the quality of maize. Therefore, corn should be properly harvested late, and the grain filling is full, which increases grain weight and reduces losses.
Corn is a lot of races, but you kind of approach is correct hard to say, if you plant corn production is flat, you can see if you have not committed more than corn planted misunderstanding.
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