[phone] sending power. (2) seed sprouts. In the spring, where the drought takes place, the seedlings are carried out. The correct approach is to blow the seeds up in warm water at 4050°c, then impregnate them in water at 2528°c for 68 hours, and extract them at temperatures of 2528°c, so that they can sprout at 24 hours. It must work hard to make sure it's all right and not too long. (3) (iii) sowing techniques in ultra-high-yielding cultivation of maize, ensuring that whole, full and strong is the key to high yields, and that it is not realistic or possible to achieve super-high yields in the production of non-saplings in the spring fields, uneven growth, low and small. In the spring, therefore, the seeding effort must be complete. Optimal seed and seed treatment 1 (1) temperature. Corn is a warmer crop, and seeds can grow normally only at temperatures above 10°c, so they can sow when 510 cm soil temperature stabilizes through 10°c. (2) the proper late broadcasting of pre-maturized varieties in general cultivation contributes to higher yields. (3) determination of the planting time of a species should put them in good environmental condition during critical periods of growth and development. (4) varieties characteristics. The temperature is around 2750°c, within 128 days of birth, the long spring region on 25 april, the four plains region on 7 may, the white city matsuhara region on 5 may, and the jilin region on 23 may. On april 20th, may 28th, may 28th, may 1st, may 20th, may 23, 27th. Of course, appropriate adjustments should also be made in the light of different years and circumstances. The early and late planting times have a significant impact on the growth and development of maize, which should be considered in the light of the characteristics of the species, climatic conditions, soil conditions, terrain, etc. The key is to ensure that corn matches the climatic conditions such as temperature moisture at different stages of development. The soil is thicker, sanctified and sanctified, 34 cm, and the soil is lax and dryer than the sandy land, 46 cm. It's usually an increase of 1 cm in depth in suitable conditions and 23 days in the evening. It should be noted that sowing too shallowly in soil with high fertility yields a large amount of ineffective fractions during the seeding period. (2) unanimous. The earth is flat, no depths are shallow, seeds are evenly distributed, cannot be leaked and cannot be replayed. (3) proper repression. The dry soil should be heavily suppressed and the wet should be light. A common problem in corn seed production1 is the poor quality of seedlings. Irresponsible planting times irresponsible weather conditions irresponsible seed quality irresponsible seed treatments irrational use of herbicide irrational use irresponsible irresistence of herbicides irresponsible causes irresistance of herbicides irresistence of herbicides irresistence in 2022 irrational low temperatures irresistence of rain in the pre- and post-dry periods irrational rain irration of the ground irresponsible irresistence, especially of seed-free sowners irration machines irration of herbicides irration of herbactors in the same species,2 there was a non-breeding and the water was overdrived and too fast to absorb the water caused the embryo to break. Herbicide. The lesion of the seed seed. The process, drying, harvesting, etc. Resulted in embryo damage and no damage to bacon. 3 there's a lumber-free platinum drug, a herbicide drug, a seed seed with low virulence, death, an underground pest hazard, a herbicide drug, acupuncture, accelerosis, accelerosis, a prolonged drought, a wind erosion, an impurity, a leak. 5 soil-born leaves, which cannot be soaked, soaked deep, soaked, soaked, soaked, soaked, soaked, soaked, soaked, soaked, soaked, soaked, soaked, soaked, soaked, soaked, soaked, soaked. (2) make it available at appropriate late hours in order to prevent incomplete seeding. (3) fine elimination, whole land. (4) fertilizer segregation to prevent fertilizer burning and burning. Usually isolate more than 5 cm. (5) prevention of underground pests where, in addition to wrapping, serious plots can be applied to furan or thionophos-methyl granules with bottom fertilizer. (6) low-lying, cold, and dry fields are not suitable for sowing alone. (5) land should be slashed appropriately, and small plots can increase density. (2) high levels of fertilization and fertilization, low levels and low levels of fertilization. (1) premature, premature, premature, condensation and rectification. (3) the water is abundant and the water is so dense that it is not available in arid areas. (4) interspecies should increase the intensity of cultivation. (iv) rationalally dense cultivation of maize. In order to be productive, it is necessary to reconcile the group with the individual, both to ensure a sufficient number of ears, and at the same time to be large, large and saturated, generally regulated by planting density. In agricultural production, it is often based on experience or only on data marked by seed bags, which is partial and unreasonable. * we have tested many densities in ultra-high-yield cultivation studies, including 110,000 plants per hectare, all of which are responsible for the production described above. High yields of maize can be seen in the context of ensuring nutrient availability, which should increase planting density. * in the province of jilin, the density of cultivation of resistant varieties is stable, high, super high and high. (v) rational application of fertilizers in ultra-high maize production, due to increased density, must ensure an adequate supply of nutrients, otherwise the goal of super-high production cannot be achieved. It is therefore necessary to determine the type, quantity and proportion of potassium nitrogen phosphorus in the application of good fertilizers, taking into account the method of application. One corn-smoking diet absorbs. The ratio of nitrous phosphorus per 100 kg maize seed grain produced in general is listed ( kg) (kg): ( kg). Absorption under different yields is different. Generally in ha - 75 kg of pure phosphorus, 175 kg of pure potassium and the ratio of potassium nitrogen phosphorus is 2:1:2. The ratio of pure nitrogen 225 kg, pure phosphorus 75 kg, pure potassium 275 kg and potassium nitrogen is 3:1:4 at 1. 0-12,000 kg of hectares. Overall, the uptake of nitrogen and potassium increased as production increased, while the absorption of phosphorus remained unchanged. This explains the need to increase the use of nitrogen and potassium fertilizer. (1accumulated percentage absorption from three elements over time: % % % % % % % 。 。 。 。 。 。 。 。 . The amount of nitrogen and phosphorus absorbed after smoking is still around 50%。
