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1) Fertilize according to the characteristics of the variety. For fertilizer-loving sorghum, it is advisable to apply fully decomposed organic fertilizer as base fertilizer, apply more organic fertilizer or inorganic fertilizer, and implement 2 times of top dressing. For conventional varieties with low fertilizer requirements and short growth period, rotten organic fertilizer should be applied as base fertilizer, and the amount of top dressing is less, and one top dressing can be.
2) Fertilize according to soil fertility and soil properties. Soils with low fertility and poor maturation should be more organic fertilizer and phosphate fertilizer. The sandy soil with poor water and fertilizer retention performance should be applied with chemical fertilizer multiple times to reduce the loss of chemical fertilizer.
The topdressing of chemical fertilizers on clay heavy soil should be concentrated in the early growth stage to avoid vigorous growth and late maturity in the later stage. Neutral or slightly alkaline calcareous soils should be treated with ammonium sulfate or superphosphate. Acidic soils should be applied with ammonia or lime nitrogen, calcium, magnesium and phosphorus.
3) Fertilize according to weather conditions. In case of low temperature in early spring, phosphorus and potassium fertilizer should be applied as seed fertilizer to promote the early growth and rapid growth of seedlings. In the late growth stage, phosphorus and potassium fertilizers can be sprayed on the foliar surface to promote maturity.
4) Fertilize according to the nature of the fertilizer. Human manure and nitrogen fertilizer are fast-acting and do top dressing; Organic fertilizer is mostly delayed-acting fertilizer, phosphorus and potassium fertilizer are less mobile, and are mainly used as base fertilizer or seed fertilizer.
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Rush application) Ye Shuo general seaweed water-soluble fertilizer 5 kg mu.
Spray) 40 grams of foliar fertilizer for general purpose of Ye Shuo.
Sugarcane nutrition programme.
1. Common problems in the seedling stage: slow rooting, rotten roots, weak seedlings, and dead seedlings!
Flushing: 2 times after the emergence of seedlings, with an interval of 7-10 days, to promote new roots, raise seedlings and strengthen seedlings, and reduce dead seedlings;
Spraying: Supplemental nutrition, immune sterilization for various diseases of sugarcane such as flowers and leaves, brown stripes, red rot, slight rot, dwarfing, tabby, nematodes, etc., high disease resistance, thick seedlings, strong seedlings, thick green and fertile leaves;
2. Common problems in tillering-jointing-harvesting period: weak stems, internodes, uneven nodes, premature yellow leaf senescence, and low yield.
Flushing application: Rushing application at the jointing stage, the stem is thick, the jointing is fast, the nodes are long and even, and the cane body is thick, which significantly increases the yield.
Spraying: Promote the rapid growth of sugarcane, early tillering, accelerate the growth, thickening, uniformity, black and bright sugarcane, drought resistance, lodging resistance, increase yield, and greatly increase yield by 55%-85%.
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Choose fertilizer with strong fertility to add, and then combine with organic fertilizer, so that it is more sufficient, the structure is more balanced, and the sorghum will have a high yield.
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Apply more fertilizer, so that the sorghum can get more nutrients, so that it can grow well.
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It would be better to use a fertilizer that is richer in nutrients, as only then can the growth of sorghum be better promoted.
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1. Early growth stage: the growth of seedlings is slow, and the roots absorb less nutrients, but they are more sensitive to the lack of nutrients. According to the test, the absorption of nitrogen, phosphorus and potassium in the early growth period accounts for 12% to 20% of the whole growth period.
Sufficient nutrients at the seedling stage, especially nitrogen and phosphorus, are conducive to the growth of roots, increase the number of roots, and enhance drought resistance. In particular, tillering varieties can promote tillering by enhancing nitrogen nutrition and is the key to increasing yield. Therefore, after planting, it should be topdressed in a timely manner according to the growth of seedlings.
2. Middle growth stage: The middle growth stage of sorghum is the most vigorous stage in the whole growth stage, the plant grows rapidly, the stems and leaves are luxuriant, and the demand for nutrients increases sharply. This stage is a critical period for large spikes and many grains.
The results showed that the absorption of the three elements of fertilizer in the middle growth period accounted for 63% and 86% of the total absorption. At this stage, sufficient nitrogen** can promote the formation of more spikelets and more florets on the spikelets; Phosphorus plays an important role in pollen and ovary development and in increasing grain weight. Potassium promotes the formation and transport of carbohydrates, and makes the stems tough, enhances lodging resistance, and is conducive to high yields.
3. Late growth stage: The late growth stage of sorghum is mainly how to achieve the requirements of large and full grains. The nutritional characteristics of this period, in addition to continuing to absorb and assimilate nutrients from the outside world, also rely on the transformation of substances that have accumulated in the vegetative organs.
The results showed that the amount of fertilizer absorbed accounted for 2% and 22% of the whole growth period in the flowering and filling stage. During the grain formation stage, proper nitrogen supply can promote the production of protein in the grain.
Phosphorus and potassium have a good effect on grain filling, mainly to promote the transfer of nutrients for a large amount of nutrients required for grain formation.
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Summary. Sorghum has wide adaptability to the soil, strong fertility absorption, planted on sandy loam soil with rich organic matter and high fertility, it is easier to obtain high yield, in the lean and barren dry land, phosphorus and low potassium deficiency, fertilizer must be increased to get a good harvest. The sorghum seedling stage is small, and the amount of fertilizer required is not much, but it is relatively strict.
From jointing to flowering, the plant grows vigorously, and the distribution center of nutrients from jointing also shifts from stems and leaves to young spikes, and finally stores in the panicles to form grains. Therefore, ensuring adequate nutrition** at this time is the basis for high yields.
Hello, need to fertilize. Dear
Sorghum has wide adaptability to the soil, strong fertility absorption, planted on the sandy loam soil with rich organic matter and high fertility, it is easier to obtain high yield, and in the lean and barren dry land, phosphorus and low potassium are lacking, and fertilizer must be increased in order to get a good harvest. The sorghum seedling stage is small, and the amount of fertilizer required is not much, but it is relatively strict. From jointing to flowering, the plant grows vigorously, and the distribution center of nutrients also shifts from stems and leaves to young spikes from jointing, and finally the panicle loss is stored in the panicle to form seeds.
Therefore, ensuring adequate nutrition** at this time is the basis for high yields.
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Seeking: How much fertilizer should be applied to plant sorghum? What fertilizer?
Hello, base fertilizer: 15-25 kg of superphosphate, 10-20 kg of potassium fertilizer, 2000-3000 kg of organic fertilizer per mu, and the application methods are sprinkled and striped. Seed fertilizer:
A small amount of nitrogen fertilizer can be applied, or 1000 kg of well-rotted thin manure water can be applied per mu. Top dressing: When applying urea, if it exceeds 15 kg mu, it needs to be applied in stages.
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Summary. Sorghum requires the most potassium, followed by nitrogen and the least phosphorus. Sorghum has the characteristics of barrenness, but it has strong fertility absorption and is very sensitive to fertilizer response.
The amount of base fertilizer should account for 80% of the total amount of fertilizer. The base fertilizer should be based on organic fertilizer and phosphate fertilizer, with appropriate nitrogen fertilizer, generally 1000 kg of compost per mu, 1000 kg of pig manure (rotted), 25 kg of superphosphate, 10-20 kg of ammonium carbonate, and should be applied in strips or holes. Top dressing is generally divided into ear fertilizer and grain fertilizer applied twice, the first time in the normal growth of sorghum (from sowing) 30-40 days (6-8 leaves), apply urea about 15 kg mu; The second topdressing should be carried out within 1-2 weeks before heading, and 8-15 kg of urea per mu should be applied.
If the growth is too vigorous in the later stage, there is the possibility of greedy green and late maturity, and 75-85 kg of potassium dihydrogen phosphate solution can be sprayed per mu. When the actual fertilizer is applied, some modern high-content compound fertilizers can also be flexibly applied, but the content is best less phosphorus, followed by nitrogen, and most potassium.
Seeking: How much fertilizer should be applied to plant sorghum? What fertilizer?
Hello dear. Sorghum requires the most potassium, followed by nitrogen and the least phosphorus. Sorghum has the characteristics of barrenness, but it has strong fertility absorption and is very sensitive to fertilizer response.
The amount of base fertilizer should account for 80% of the total amount of fertilizer. The base fertilizer should be based on organic fertilizer and phosphate fertilizer, with appropriate nitrogen fertilizer, generally 1000 kg of compost per mu, 1000 kg of pig manure (rotted), 25 kg of superphosphate, 10-20 kg of ammonium carbonate, and should be applied in strips or holes. Top dressing is generally divided into ear fertilizer and grain fertilizer applied twice, the first time in the normal growth of sorghum (from sowing) 30-40 days (6-8 leaves), apply urea about 15 kg mu; The second topdressing should be carried out within 1-2 weeks before heading, and 8-15 kg of urea per mu should be applied.
If the growth is too vigorous in the later stage, there is the possibility of greedy green and late maturity, and 75-85 kg of potassium dihydrogen phosphate solution can be sprayed per mu. When the actual fertilizer is applied, some modern high-content compound fertilizers can also be flexibly applied, but the content is best less phosphorus, followed by nitrogen, and most potassium.
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