When is it good to spray silicon fertilizer, and what fertilizer can be sprayed with when spraying s

Silicon fertilizer is a kind of medium element fertilizer, silicon fertilizer is a kind of quality fertilizer, health fertilizer and new multi-functional fertilizer, which is listed as the fourth largest element fertilizer after nitrogen, phosphorus and potassium by the international soil community. It is mainly used for rice, wheat, corn and other silicon-loving crops, especially rice is the most sensitive to silicon. Rice is known as a silicic acid plant, and the application of silicon fertilizer on silicon-deficient soil can enhance rice disease resistance.

The types of silicon fertilizers are divided into two categories: slow-acting silicon fertilizers and water-soluble high-efficiency silicon fertilizers. It can be used as basal fertilizer, top dressing and foliar spraying.

Instructions for the use of "cadmium-despogen" foliar silicon fertilizer:Dosage description: about 1 bottle per mu each time; Artificial spraying needs to be mixed with water 50-100 times; UAV spraying with water 5-10 times; Foliar sprays are applied.

Based on the principle of foliar dripping, the number of spraying should be increased according to the degree of pollution of cultivated land.

Field management: Same as normal field management.

Precautions for the use of "cadmium-despogen" foliar silicon fertilizer:1. When using, it should be used now, and the foliar fertilizer should not be stored for a long time.

2. Foliar spraying is required with a sprayer with good atomization effect.

3. Do not use it in rainy days, if it rains 24 hours after spraying foliar fertilizer, it needs to be supplemented. Do not spray when exposed to the sun to avoid burning the leaves.

4. Do not spray with pesticides or other foliar fertilizers, so as not to affect the effect.

5. Store in a ventilated and cool place. When spraying, you need to wear gloves, masks, and work clothes to prevent the entrance from entering the eyes, and splashing ** should be quickly cleaned with water.

6. Keep out of reach of children to prevent children from eating by mistake.

Hope it helps

<> can be applied 1 month before the heading of the crop or before the plough is cultivated. Silicon fertilizer can not only be used as a base fertilizer, but also as a top dressing. Notes:

When carrying out foliar fertilization, in addition to paying attention to the concentration of silicon fertilizer, it is also necessary to grasp the spraying time and period; It is also necessary to choose the suitable spraying site of the plant; Additives can be added appropriately when spraying; Foliar fertilization should not be used as root fertilization.

1. When is the best time to apply silicon fertilizer

1. Silicon fertilizer can be applied before ploughing or 1 month before crop heading. If silicon fertilizer is used as a base fertilizer, it is generally possible to sprinkle silicon fertilizer into the soil and mix them together before plowing the land.

2. If silicon fertilizer is applied in winter, silicon fertilizer can be mixed with straw, green manure and farmhouse fertilizer, which has the advantage of not only allowing the straw to decay quickly, but also accelerating the decomposition of organic fertilizer. In fact, silicon fertilizer can also be used as top dressing, and the effect will be better if silicon fertilizer is applied 30 days before heading in rice and wheat.

3. If you want to carry out foliar silicon fertilizer, you need to master the concentration of spraying, because the concentration of the solution is relatively high, then after spraying, the leaves of the crop will be burned, so spraying silicon fertilizer will have a counterproductive effect, resulting in unnecessary losses.

4. When carrying out foliar spraying, it is necessary to spray according to the nutrients required for the different growth and hail concession period of crops; At the same time, it is also necessary to master the time of spraying, which is suitable for after 4 p.m., if it rains within 3-4 hours after spraying, it needs to be sprayed; It is also necessary to choose the suitable spraying site of the plant; If you want to promote the absorption of fertilizer, you can add additives appropriately; Foliar fertilization is not a substitute for root fertilization because the crop has a larger absorption system at the root and needs to be done in conjunction with root fertilization.

Second, silicon fertilizer cannot be used at the same time

1. Silicon fertilizer cannot be mixed with ammonium bicarbonate, and it is not possible to use it at the same time. Because the ammonia contained in ammonium bicarbonate will be volatilized by the silicon fertilizer bureau, reducing the effect of nitrogen fertilizer and causing unnecessary waste.

2. When using silicon fertilizer, the amount of silicon fertilizer can be determined according to the content of effective silicon contained in different plots and the content of water-soluble silicon of silicon fertilizer. Soils with serious silicon deficiency can be applied more in a timely manner, and soils with less silicon deficiency can be applied less.

3. And when using silicon fertilizer, it should be used with other fertilizers, it cannot replace nitrogen, potassium fertilizer and phosphorus, and needs to be scientifically matched in order to play a good role. At the same time, silicon fertilizer is relatively cost-effective, and it is recommended to continue to apply it every quarter.

Silicon fertilizer is a common purchase for many farmers, and it can have a nutritional effect on crops in a short time.

So when to apply silicon fertilizer, do you understand the contraindications and precautions for the use of foliar silicon fertilizer? Let's take a look! When is silicon fertilizer applied? Silicon fertilizer should be applied well before ploughing and 30 days before heading.

Generally, when silicon fertilizer is used as base fertilizer, it can be withdrawn and mixed with the soil before arable land.

If silicon fertilizer is applied in autumn, it can be applied together with organic fertilizers such as straw, farmhouse fertilizer, and green manure, which can accelerate the decay of rice straw and the decomposition of organic fertilizer.

It can also be used as top dressing, and when rice and wheat are topdressed with silicon fertilizer, the effect is better before the spikelet formation period, that is, 30 days before heading.

Contraindications for the use of foliar silicon: The use of foliar silica fertilizer requires mastery of spraying concentration.

If the concentration of the solution is too high, it will burn the crop leaves after spraying, which will have a counterproductive effect.

Precautions for the use of foliar silicon fertilizer: 1. When mastering the foliar fertilization during the spraying period, it is necessary to spray the nutrients according to the different growth and development stages of various crops, and choose the crops when the nutrient elements are required to be large and urgent.

2. Choose the appropriate spraying time foliar fertilization effect is directly related to temperature, humidity, wind, etc., and choose no wind, cloudy day or humidity, evaporation before 9 o'clock in the morning, the appropriate is to carry out the travel finger after 4 o'clock in the afternoon, if it rains 3-4 hours after spraying, it is necessary to make up the spray.

3. Select the appropriate spraying site, the upper, middle and lower leaves and stems of the plant are slow due to different metabolic vitality, and the ability to absorb external nutrients varies greatly, so the appropriate spraying site should be selected.

4. When adding additives to spray fertilizer on the foliar surface, add additives appropriately to improve the adhesion of fertilizer on plant leaves and promote the absorption of fertilizer.

5. Combined with soil fertilization, because the root has a larger and more complete absorption system than the leaf, it is determined that more than 10 times of foliar fertilization can reach the total amount of nutrients absorbed by the root.

Therefore, foliar fertilization cannot completely replace the root fertilization of crops, and must be combined with root fertilization.

(1) Scope of application. The silica supply capacity of the soil is an important basis for determining whether to apply silica fertilizer. The greater the degree of silicon deficiency in the soil, the better the effect of fertilization to increase yield, therefore, silicon fertilizer should be preferentially allocated to silicon-deficient areas and silicon-deficient soils.

Different crops have different levels of demand for silicon, and the effect of silicon-loving crops on silicon fertilizer is obvious, and the crops with significant silicon-fertilizing effect mainly include rice, wheat, corn and other grasses, among which rice is a typical silicon-loving crop. Since silica fertilizer has the effect of improving soil, silicon fertilizer should be applied to contaminated farmland and protected land that has been planted for many years.

2) Method of application. Silicon fertilizer is not easy to agglomerate, not easy to deteriorate, has good stability, and will not have infiltration, volatilization and other losses, and has the characteristics of long fertilizer effect. Therefore, silicon fertilizer does not have to be applied every year, but can be applied every other year.

Its application method can be applied together with organic fertilizer, nitrogen, phosphorus and potassium fertilizer as basal fertilizer; Water-soluble silica fertilizer with high nutrient content can be used as both base fertilizer and top dressing, but the top dressing period should be as early as possible. For example, in rice production, it should be applied before rice booting.

3) Dosage. The amount of silicon fertilizer should be determined according to the content of available silicon in the soil and the content of water-soluble silicon in silicon fertilizer in different plots. Soils with severe silica deficiency can be applied more moderately, while soils with mild silica deficiency should be applied less.

Water-soluble silicon fertilizer with an effective silicon content of 50-60% can be applied 6-10 kg per mu; Steel slag silicon fertilizer with an effective silicon content of 30-40% can be applied 30-50 kg per mu; If the available silicon content is less than 30%, 50-100 kg per mu can be applied.

Silicon fertilizer is generally alkaline and applied in acidic soil; Reasonable application of silicon and nitrogen fertilizers can improve the efficiency of silicon fertilizers; Silicon fertilizer is generally used as base fertilizer. The soil available silicon content index of silicon fertilizer is less than 90 mg kg, the application rate is 20 kg of sodium silicate per mu, and the application of calcium silica fertilizer and silica manganese fertilizer is 100 kg per mu.

Rice silicon fertilizer should be applied with nitrogen, phosphorus, potassium, zinc and other fertilizers as base fertilizer applied to the soil, it is best to be sprinkled before ploughing or before water rake, and there is fertilizer in the whole layer after water rake. The standard dosage of silicon is 1 kg per mu.

The correct application method of silicon fertilizer is:

1. Dry land and paddy fields. 4 kg of large-grained silicon is used per mu. Before land preparation, it is mixed separately or with granular fertilizers such as compound fertilizers and then sprinkled, striped or hole-struck.

2. Orchard. Each fruit tree is applied with 50 100 grams of large-grain silica according to the size of the canopy, either alone or in combination with granular fertilizers such as compound fertilizers. It can be applied as spring fertilizer, fruit-strengthening fertilizer, and yang fertilizer, and is applied to the soil after ditching along the drip line of the crown.

3. Large-grain silicon should be applied in combination with organic fertilizer, nitrogen, phosphorus and potassium fertilizer, and applied as early as possible for good results.

The commonly used varieties of silicon fertilizer are silicon-calcium fertilizer, silicon-manganese fertilizer, silicon-magnesium-potassium fertilizer, sodium silicate, etc. Silicon fertilizer is generally alkaline, and when applied in acidic soil, it can neutralize acidity, reduce the toxicity of aluminum ions and reduce phosphorus fixation, and improve the nutritional conditions of phosphorus in crops. At the same time, the reasonable application of silicon and nitrogen fertilizer can improve the fertilizer efficiency of silicon fertilizer.

Silicon fertilizer is generally used as base fertilizer, the soil available silicon content index of silicon fertilizer is less than 90 mg kg, the application rate of sodium silicate is 20 kg per 667 meters, and the application of calcium silica fertilizer and silicon manganese fertilizer is 100 kg per 667 meters.