Agricultural practice has proved that the application of fertilizers based on farmer's fertilizer containing more phosphorus and potassium to winter crops such as wheat, rapeseed, green manure and ramie can generally increase the ground temperature by 2 °C ~ 3 °C, which can increase the potassium content of plant cells. To enhance the water holding capacity of the cells, so that the plants are not easy to freeze at low temperatures, thereby playing a role of heat preservation and cold protection. At the same time, the concentration of salt in the soil solution can be increased to reduce the damage degree of the root system of the crop. In addition, the “wet spring application†of wax fertilizer can effectively promote the growth and development after spring. After the spring, the wintering crop enters the important period of vegetative growth and reproductive growth, and needs to absorb more nitrogen and potassium nutrients. The supply of phosphorus and potassium nutrients promotes the increase of flower bud differentiation and effective branching (effective panicle number), thereby increasing yield. How to improve the application effect of wintering crop wax fertilizer? To sum up the experience of each place, the key is to master the "three to see two attention."
Look at the soil fertility to apply fertilizer to the wintering crops according to local conditions. Generally, the fertile land with high fertility and bottom fat can be applied less or not. For plots with low fertility, low base fertilizer or plots without bottom fertilizer, increase the application. Phosphorus and potassium fertilizer; the organic fertilizer should be added to the plot of single fertilizer application. Do not blindly abuse, otherwise it is easy to cause the crops in the spring to be fierce, and later, lodging, greed, late maturity and resulting in reduced production and other adverse consequences. In addition, the application of wax fertilizer in sandy soil should be carried out in small amounts to prevent fertilizer leaching loss.
Look at the growth of the seedlings. The application of the fertilizer should look at the growth of the winter crops and the performance of the fertilizer, and determine the application and non-application and Shido Shi. In general, the long-green seedlings with thick green leaves are not suitable for applying wax fertilizer. The strong seedlings with green and green leaves should be applied less or not, and the thin and thin seedlings with yellow or green leaves or red leaves should be applied with heavy fertilizer.
It depends on the type of crop to apply the wax fertilizer depending on the crop. 1. Application of rapeseed fertilizer: The manure and phosphorus fertilizer should be mixed and rotted, and about 1,500 kilograms per acre should be applied to the rapeseed line, combined with the cultivation of earthworms, and applied from late December to early January. Early-maturing rapeseed varieties should be applied earlier than late-maturing rapeseed varieties because of the early spring. 2. Application of wheat bran fertilizer: It should be applied in the middle and late December, and strong seedlings should be mixed with soil, while weak and late-maturing wheat should be mixed with appropriate amount of phosphate fertilizer. Generally, about 2,500 kg of soil and fertilizer are applied per mu. 3. Application of green manure fertilizer: 150-250 kg of gray fertilizer or a thin layer of pig and cow manure per acre. 4. Application of ramie fertilizer: The application amount should account for about 50% of the annual fertilization amount, about 4000 kg of soil per mu, and about 2000 kg of pig and cow manure.
Pay attention to the choice of sunny weather to improve the effect of applying wax fertilizer on winter crops. Generally, you should pay attention to the sunny weather before "after the frost". Usually, the temperature is low, and the delayed manure, compost, pond mud, gray fertilizer or human and animal excrement are applied. When the temperature is high, grab the sunny day and apply fertilizers such as urea, ammonium chloride and ammonium bicarbonate that are easily decomposed. Under low temperature conditions, ammonium bicarbonate volatilizes less, and it can be quickly absorbed and utilized by wintering crops, and the loss of fertilizer is less. At the same time, the application of ammonium bicarbonate is more economical than urea. Wheat and rapeseed are applied with 25 to 30 kg of ammonium bicarbonate per acre, but attention should be paid to the application of ammonium bicarbonate to prevent burns on the leaves.
Pay attention to the reasonable combination of fertilizers. Applying wax fertilizers should also pay attention to the selection of fertilizer types according to different crops and seedlings. Such as decomposed pig cow dung, human excrement, fermented pond mud, river mud, Chen brick soil, fire soil ash, cake fertilizer, etc. are high-quality organic fertilizer, for the thin and weak seedlings should be based on human excrement and nitrogen fertilizer To promote the strong and strong seedlings; for the strong seedlings should be based on pond mud, soil and fertilizer. If applying cake fertilizer, it is advisable to apply 40-50 kg per acre. Organic fertilizers should be used as wax fertilizers to avoid concentrated application to the roots. When the drought is too high, the concentration of fertilizer around the roots of the crops is too high, resulting in reverse osmosis and physiological loss of water, resulting in dead crops. In the case of drought after application of wax fertilizer, watering should be combined with drought, water should be adjusted to improve fertilizer utilization.
Author: Dan Shan
Look at the soil fertility to apply fertilizer to the wintering crops according to local conditions. Generally, the fertile land with high fertility and bottom fat can be applied less or not. For plots with low fertility, low base fertilizer or plots without bottom fertilizer, increase the application. Phosphorus and potassium fertilizer; the organic fertilizer should be added to the plot of single fertilizer application. Do not blindly abuse, otherwise it is easy to cause the crops in the spring to be fierce, and later, lodging, greed, late maturity and resulting in reduced production and other adverse consequences. In addition, the application of wax fertilizer in sandy soil should be carried out in small amounts to prevent fertilizer leaching loss.
Look at the growth of the seedlings. The application of the fertilizer should look at the growth of the winter crops and the performance of the fertilizer, and determine the application and non-application and Shido Shi. In general, the long-green seedlings with thick green leaves are not suitable for applying wax fertilizer. The strong seedlings with green and green leaves should be applied less or not, and the thin and thin seedlings with yellow or green leaves or red leaves should be applied with heavy fertilizer.
It depends on the type of crop to apply the wax fertilizer depending on the crop. 1. Application of rapeseed fertilizer: The manure and phosphorus fertilizer should be mixed and rotted, and about 1,500 kilograms per acre should be applied to the rapeseed line, combined with the cultivation of earthworms, and applied from late December to early January. Early-maturing rapeseed varieties should be applied earlier than late-maturing rapeseed varieties because of the early spring. 2. Application of wheat bran fertilizer: It should be applied in the middle and late December, and strong seedlings should be mixed with soil, while weak and late-maturing wheat should be mixed with appropriate amount of phosphate fertilizer. Generally, about 2,500 kg of soil and fertilizer are applied per mu. 3. Application of green manure fertilizer: 150-250 kg of gray fertilizer or a thin layer of pig and cow manure per acre. 4. Application of ramie fertilizer: The application amount should account for about 50% of the annual fertilization amount, about 4000 kg of soil per mu, and about 2000 kg of pig and cow manure.
Pay attention to the choice of sunny weather to improve the effect of applying wax fertilizer on winter crops. Generally, you should pay attention to the sunny weather before "after the frost". Usually, the temperature is low, and the delayed manure, compost, pond mud, gray fertilizer or human and animal excrement are applied. When the temperature is high, grab the sunny day and apply fertilizers such as urea, ammonium chloride and ammonium bicarbonate that are easily decomposed. Under low temperature conditions, ammonium bicarbonate volatilizes less, and it can be quickly absorbed and utilized by wintering crops, and the loss of fertilizer is less. At the same time, the application of ammonium bicarbonate is more economical than urea. Wheat and rapeseed are applied with 25 to 30 kg of ammonium bicarbonate per acre, but attention should be paid to the application of ammonium bicarbonate to prevent burns on the leaves.
Pay attention to the reasonable combination of fertilizers. Applying wax fertilizers should also pay attention to the selection of fertilizer types according to different crops and seedlings. Such as decomposed pig cow dung, human excrement, fermented pond mud, river mud, Chen brick soil, fire soil ash, cake fertilizer, etc. are high-quality organic fertilizer, for the thin and weak seedlings should be based on human excrement and nitrogen fertilizer To promote the strong and strong seedlings; for the strong seedlings should be based on pond mud, soil and fertilizer. If applying cake fertilizer, it is advisable to apply 40-50 kg per acre. Organic fertilizers should be used as wax fertilizers to avoid concentrated application to the roots. When the drought is too high, the concentration of fertilizer around the roots of the crops is too high, resulting in reverse osmosis and physiological loss of water, resulting in dead crops. In the case of drought after application of wax fertilizer, watering should be combined with drought, water should be adjusted to improve fertilizer utilization.
Author: Dan Shan
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