What factors will affect the high yield of corn?
What factors will affect the high yield of corn? Please give an introduction and the reasons why the control methods affect the high yield of maize can refer to the following factors: 1. Careless seed selection. As the current seed propagation system is not perfect, unqualified maize seeds still account for a large proportion. Some farmers are greedy for bargains and buy so-called improved seeds at low prices from small vendors or informal seed management departments, resulting in a serious reduction in production. 2. The planting density is unreasonable. The high planting density is a prominent problem in the current summer maize production. For example, some farmers plant "Nongda 108", leaving more than 5000 seedlings per 667m2 (1 mu), which is about 1x3 more than the suitable density of this variety. Because the density is too high, the growth and development of single plant is poor, the empty culm rate is high, and the female ear is bald and tipped seriously, resulting in varying degrees of lodging, resulting in reduced yield. 3. Fertilization is not scientific. In fertilization, there are widespread phenomena of heavy nitrogen fertilizer, light phosphate fertilizer, ignoring potash fertilizer and micro-fertilizer. Because the crop yield is restricted by the minimum nutrient law. Single excessive application of nitrogen fertilizer can not achieve high yield, on the contrary, it will cause poor lodging resistance, serious diseases and insect pests, resulting in varying degrees of yield reduction. In addition, improper fertilization period and blind application of some effective nutrients (note: the pure content of nitrogen, phosphorus, potassium, medium and trace elements should not be taken into account) too low "corn special fertilizer" will lead to a decrease in yield. 4. Watering is not timely. The idea of relying on the weather and other rain is serious, often not according to the law of corn water demand to pour "critical water", but in the case of drought to pour "life-saving water", thus seriously affecting the yield. Click to get more corn planting techniques click to get more food crop planting techniques
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What are the reasons for the lack of corn seedlings?
What are the reasons for the lack of corn seedlings? Please give us an introduction and the reasons for the lack of maize seedlings caused by the prevention and control methods are as follows: do not soak the seeds to accelerate the germination of corn seed coating agent dissolved in water, it will not only fail, but also inhibit seed germination. Do not sow too deep summer corn. The suitable sowing depth is 3-5 cm. If the sowing is too deep, the ground temperature drops.
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How to apply fertilizer when sowing summer corn?
How to apply fertilizer when sowing summer corn? Please introduce the main reasons for sprouting and seedling burning of sowing corn such as improper application of seed fertilizer: first, the excessive application of seed fertilizer causes seed or seedling burning due to the contact between root system and chemical fertilizer in the process of seed emergence. Second, it is a kind of fertilizer and seed mixed sowing, seed fertilizer application.
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