Reasonable fertilization of rape is conducive to growth, how can rape be fertilized?

When the seedlings are just growing, you can fertilize them, spray more compound fertilizer, zinc fertilizer, potassium fertilizer, and then spray a little fertilizer water when they are almost ripe, so that they can grow healthier. It will also grow better.

Fertilization can be done through the growth of rapeseed, the process of rapeseed growth can be controlled, fertilization is carried out according to the relevant time, and water and fertilizer management must be carried out.

You can give rape some high-quality soil miscellaneous fertilizer, and then carry out top dressing, loosening soil, watering, etc. at the seedling stage to make rape grow better.

The area suitable for planting is very wide, the amount of fertilizer required by rape is greater than that of rice, and the fertilization technology requirements are also stronger, to make rapeseed yield, in addition to what fertilizer is applied, it also has a lot to do with fertilization technology. Therefore, in this question, I will combine the fertilization techniques of oilseed rape in different periods to explain what fertilizer should be applied in different periods of oilseed rape. The purpose of topdressing in rapeseed flowering and podding stage is to improve the podding rate of rapeseed and prevent rapeseed from falling flowers or not setting pods.

For the choice of fertilizer, Lao Zhao suggested using potassium dihydrogen phosphate solution.

Rapeseed is one of the edible oils that people need in their daily lives, in the process of rapeseed production, in order to make rapeseed yield, in addition to selecting excellent varieties, cultivating sparse seedlings, selecting suitable planting land and pest management, one of the tasks that cannot be ignored is the fertilizer problem in the whole growth period of rapeseed.

Need more fertilizer, and the effect of potassium fertilizer alone is lower, grain weight is related to the nutritional conditions in the later stage, when the growth of rape is poor, 5-10 kg of potassium chloride per mu, the effect of increasing fruit is great, with the decay of human and animal manure and urine for seedling fertilizer, sprout stage, can be sprayed with 1% urea or superphosphate or potassium dihydrogen phosphate. In early spring, when the temperature rises to more than 10, rapeseed buds emerge one after another, which is the most vigorous growth period with the fastest growth and the most fertilizer. Sprout fertilizer is applied before or at the beginning of rapeseed sprouting, which can make rapeseed grow steadily in spring and have many strong branches.

Top dressing should be done "fast" and "early", and 25 kg of urea or ammonium carbonate can be applied per mu. For rapeseed with late sowing period, serious frost damage and poor seedling potential, it should be applied early and more often.

Or applied at the seedling stage, the rest of the nitrogen fertilizer is applied as rapeseed moss fertilizer, and there are generally more rainy days in November at the seedling stage of rapeseed, less light, and inconsistent seedling conditions. In order to get strong seedlings, rape before the five-leaf stage, about 10 kg of urea per mu, add kilograms of boron fertilizer, if boron fertilizer is applied barely, there is no need to apply it at the seedling stage.

Generally, 15-20 kg of ammonium bicarbonate or 6-7 kg of urea are dissolved in diluted manure water. The budding stage is a critical period for rapeseed to be erected in spring, when the demand for fertilizer is large, accounting for about 50% of the total fertilizer demand. The application of boron fertilizer can prevent this phenomenon from occurring, especially in hybrid oilseed rape.

1. Early application of spring fertilizer Early spring topdressing can remedy the lack of winter growth of rapeseed, promote multi-branching, and early budding. Especially for rapeseed with insufficient basal fertilizer and no wax fertilizer, topdressing in early spring is the key to high yield. Generally, 5-8 kg of urea or 10-15 kg of ammonium carbonate per mu is used.

2. Skillful fertilization The fertilization of rape should be treated separately according to the appearance and growth of rapeseed. The seedlings are weak, the growth of the poor field should be applied as soon as possible, that is, when the height is about 50 cm, 15-20 quintals of human manure per mu, plus 5 kg of urea or 10-15 kg of 45% compound fertilizer, and the field with strong growth and dark green leaves, fertilizer should be postponed or applied less.

When fertilizing, you must apply more organic fertilizer, and you must water it immediately after fertilization, so that the rape will fully absorb the nutrients.

First of all, it is necessary to apply foot fertilizer, and the bottom fertilizer is best to use farmhouse fertilizer, such as rape cake and sesame cake after fermentation, which is a good farmhouse organic fertilizer, or use poultry manure as the base fertilizer, if there is no farmhouse fertilizer, you can also use compound fertilizer as the base fertilizer. Among these various oils, the most economical and widely used should be rapeseed oil. The best of this oil is relatively cheap, and the oil output of rapeseed is also more, and its planting yield is also higher than that of other oil crops.

<> for every 100 kg of rapeseed produced, it needs to absorb kilograms of nitrogen, phosphorus and potassium. According to the target yield, combined with the difference in soil fertilizer supply and cultivars, etc., determine the type, amount and application period of fertilizer required. Rapeseed is an oil crop, and there are three types: cabbage, radish, and cabbage.

Cabbage type and radish type are multi-seeded, and cabbage type seedlings are transplanted. Brassica napus requires a lot of fertilizer, good yield and high yield, most of which produce 140 160 kg of rapeseed per mu. According to local conditions, the appropriate area is selected to choose improved varieties.

According to the natural conditions and planting systems in different regions, under the premise of mechanized production, rapeseed varieties with high yield, high oil and suitable for machine harvest should be selected according to local conditions.

Fertilization method: Basal fertilizer: includes 50% of the total nitrogen fertilizer, as well as all phosphorus, potassium fertilizer and farmhouse fertilizer.

The amount of farmhouse fertilizer depends on the quality of the fertilizer, and generally 3 5 tons per mu are applied. The base fertilizer is insufficient, the seedlings are thin and weak, and it is difficult to make up for it even if a large amount of top dressing. The addition of potassium can reduce the occurrence of Sclerotinia sclerotinia sclerotinia and promote the formation of stems and branches.

The late seedling and sprout stages of rapeseed are the peak of nutrient absorption and dry matter accumulation. At this time, the balanced and timely supply of nitrogen, phosphorus, potassium and other nutrients is the key to high quality and high yield of rapeseed.

Rape is a widely cultivated plant in China, which can be used to extract oil and can also be eaten. It is a relatively cold-tolerant and high-temperature tolerant plant, with strong adaptability to the environment, and a wide range of planting time, all year round.

First of all, two tons of organic fertilizer per acre are used before planting. During the growth period, 80 catties of urea per mu are used for top dressing.

Early application of seedling fertilizer. Rapeseed seedling fertilizer should be applied appropriately early, should account for 10-15% of the total application amount, and generally use 10 quintals of human manure and urine plus 5-7 kg of urea, or 10-15 kg of ammonium carbonate. The application of chemical fertilizer should be determined according to the weather and soil moisture, and can be applied directly when the soil moisture is high, and it is best to mix the fertilizer with water.

Reasonable and appropriate fertilization should be carried out, and organic fertilizer or nitrogen fertilizer can be used when topdressing rapeseed can improve the yield of rapeseed.

Fertilizer should be applied many times, so that the rape can get more nutrients and will grow better.

Rapeseed needs a lot of fertilizer, and in order to promote high yield through fertilization, we must strive to do two things: first, apply appropriate fertilizer, which should determine the required nutrients according to the characteristics of rape; Second, apply sufficient and sufficient fertilizer to ensure adequate nutrition and high yield. In short, fertilization should be done with the right medicine and sufficient fertilizer. The amount of basal fertilizer applied to rapeseed is mainly in quantity, but it is also necessary to choose the appropriate fertilizerThe amount of basal fertilizer applied in rapeseed is closely related to soil fertility, climatic conditions and total amount of fertilizer.

Here is a judgment criterion, that is, to determine the final amount of basal fertilizer according to the total amount of fertilizer.

<> If the total amount of fertilizer is large, the basal fertilizer can account for about 70% of the total fertilizer amount; If the total amount of fertilizer is small, the basal fertilizer can account for 30% to 40% of the total fertilizer application; If the amount of fertilizer is moderate, the basal fertilizer can account for about 50% of the total fertilizer amount. The amount of fertilizer has a beginning and an end, so the type of fertilizer should also be clear. The application of basal fertilizer to vegetables is generally based on organic fertilizer, and rape is no exception.

Rape can be applied with 4,000 kg of base fertilizer per mu, combined with soil tillage application. In addition, in order to achieve the effect of increasing yield, 100 kg of phosphostone powder can be applied per mu, which can achieve a good effect of increasing yield.

Rapeseed topping should be done in a timely and appropriate amount to do a good job in the topping application at the germination stage. The reason why the top application of sprout moss fertilizer is emphasized here is that this period is the two vigorous periods of vegetative growth and reproductive growth of rapeseed, and timely and appropriate top application can achieve the effect of increasing yield by 17% and 26%. Therefore, in order to achieve high yields, it is necessary to do a good job of external application at the bud stage and moss stage of rape.

Here's how to top it. The best time to apply fertilizer is when the moss is 0 10 cm high, too early or too late is not conducive to the effect of fertilizer. The amount of top dressing, 10 12 kg of pure nitrogen fertilizer or compound fertilizer can be applied to each mu of rapeseed.

On the day of fertilization, do not apply in the morning when the dew is not dry, be sure to fertilize when there are no water droplets on the leaves, and stick to the strip application. In addition, there is another fertilization method that can achieve the effect of increasing yields, and that is to spray borax fertilizer on the foliar surface. It is recommended to spray borax with 120 kg of aqueous solution per mu until the flowering stage.

If you want rape to have a high yield, then it should be potassium fertilizer, it is best to eat fertilizer once a week, and if the growth is not good, you can eat phosphate fertilizer.

Now carry out scientific and effective fertilization, choose soil with good air permeability, regularly carry out hydroponic management, spray pesticides appropriately, and prune some bad branches and leaves to ensure a small amount of many times. This will allow fertilization to take place.

During the growth period of rapeseed, more compound fertilizer should be sprayed, organic fertilizer should also be sprayed, and more watering is required, so that the rape can be successfully grown.

During the growing period of rapeseed, compound fertilizer should be sprayed more, machine fertilizer should be sprayed, and more watering should be used to grow rapeseed.

It is necessary to strengthen field management, supplement organic fertilizer in time, use compound fertilizer, pay attention to the fertility of the soil, pay attention to the temperature of the outside, and water regularly.

Rapeseed seedling stage nitrogen demand, growth period need phosphorus, potassium fertilizer before the application of boron on rapeseed flowering, pollination, fruiting, supplementation of calcium, magnesium and zinc has an excellent effect on the growth and development of rapeseed.

1. Nitrogen: the absorption of nitrogen at the seedling stage accounts for 45% of the total absorption, the critical period of nitrogen nutrition at the seedling stage, the vegetative growth and reproductive growth at the budding stage are very vigorous, and it is the period when rape needs more nitrogen.

2. Phosphorus: rapeseed grows in the early stage of the response to phosphorus Changli, phosphate fertilizer is applied as basal fertilizer, flowering period to maturity stage, is the period when rape absorbs phosphorus, accounting for 50% of the whole growth period, after maturity, 60-70% of phosphorus is distributed in the grains.

Third, the demand for potassium fertilizer in rape panicle draft is very large, the potassium concentration in the plant is high at the stage of sprouting, and potassium fertilizer must be applied before sprouting, and the earlier the application, the earlier the healing.

How to fertilize rape.

1) Basal fertilizer: apply to the soil before sowing. If the base fertilizer is lacking, it can be concentrated as seed dressing or seed cover fertilizer application. Generally, about 15 kg of urea and 5 kg of microbial agent are applied per mu.

2) Top dressing: the first stage of seedling fertilizer, the first time after the seedlings, the second time after the seedlings. For transplanting rapeseed, the first application is applied when the seedlings are alive, and the second application is applied when the plant has grown into 3 to 5 new leaves.

The first time is to add 5% water to apply, and the second time is combined with the cultivation hole. The second stage is the fertiliser, which is applied before the sprout. Flower fertilizer and sprout fertilizer should be determined according to the growth and development of crops, if there is no defertilization, it can not be applied to prevent plant lodging.

Base fertilizer: Combined with land preparation, 1000-150 kg of high-quality soil miscellaneous fertilizer and about 8 kg of potassium fertilizer are used per mu, and they are applied after mixing and composting. Top dressing:

At the seedling stage, 300-500 kg of human manure, 5-7 kg of urea and 10-15 kg of ammonium carbonate were applied per mu. During wintering, 3000-4000 kg of soil miscellaneous fertilizer and 20 kg of compound fertilizer should be applied per mu, and weeding should be carried out before fertilization.

It is best to choose compound fertilizer, to grasp the proportion of fertilizer, to apply organic fertilizer in time, to fertilize a small amount many times, to dilute the fertilizer appropriately, so that the seedlings will not be burned.

After fertilization, pay attention to the weather, temperature, and fertilizer amount, remember to water, and remember to spray pesticides, and pay attention to insect pests.

Although boron fertilizer is a trace element, the effect of boron fertilizer is very obvious in areas where the soil is boron deficient or the soil boron content is low. At the seedling stage, boron has a large effect. A large number of practices have proved that the continuous boron deficiency at the seedling stage of rapeseed has a greater impact on the growth of rapeseed than that of boron deficiency in the middle and late stages. The earlier and longer the boron deficiency in the soil, the greater the loss caused by boron deficiency. Boron deficiency in the early stage, even if it is supplemented in the middle and late stages, it is difficult to recover the loss.

Boron deficiency can cause disease. In areas with low soil available boron content, oilseed rape often produces flowering and unseeding disease, resulting in a serious reduction in yield. Boron deficiency can reduce the oil content of rapeseed and deteriorate its quality.

Rapeseed sprout stage is the period of vegetative growth and reproductive growth at the same time, the plant rapidly pulls sprouts, grows branches, increases the leaf area, and differentiates a large number of flower buds, which is the period when more fertilizer is needed, and it is also the critical period of increasing branches and pods. Therefore, according to the application of base fertilizer and seedling fertilizer and growth, it is necessary to apply sprout fertilizer stably as appropriate. Base and seedling fertilizer is sufficient, the plant grows robustly, and can be applied less or no sprout fertilizer; If the base and seedling fertilizer are insufficient, the fertilizer should be applied as soon as possible if there is a tendency to defertilize.

Generally, 15-20 kg of high-nitrogen compound fertilizer is applied per mu. The fertilization time is generally in the middle of sprouting, and the height of the sprout is 15-30 cm. However, if the growth is weak, fertilizer can be applied at the beginning of sprouting to avoid premature aging; The strong growth can be applied in the late stage of sprouting, when the sprout is 30-50 cm high, so as not to grow crazy and cause canopy.

If you want to make the rape seedlings planted particularly strong, you must learn to fertilize reasonably at this time, and make a particularly reasonable arrangement for the moisture of the soil, followed by planting the seedlings, and fertilizing within half a month, especially during the growth period.