-
Corn topdressing, with diammonium and urea will not be better. Because diammonium is a nitrogen fertilizer fertilizer, and urea is also a pure nitrogen fertilizer fertilizer, the combination of the two is the reuse of nitrogen fertilizer, which not only has no benefit, but also disadvantages. Crop fertilizer, need to be balanced fertilizer, too much partial nitrogen fertilizer, easy to cause corn growth, thin, affect the later reproductive growth, encounter wind disaster, easy lodging, greatly affect corn yield.
-
Potassium chloride is good. <>
Potassium chloride is mostly used on field corn, first potassium sulfate.
The cost is higher than that of potassium chloride and the potassium content is lower than that of potassium chloride.
Corn fertilization technology:
1. Characteristics of nutrient demand of corn at different growth periods.
Corn requires a different proportion of nutrients during each growing period.
From seedling emergence to jointing, maize absorbs 3% of nitrogen, phosphorus and potassium;
From jointing to flowering, 97% of nitrogen, phosphorus, and potassium were absorbed;
From flowering to maturity, it absorbs nitrogen, phosphorus, and potassium 0%.
Second, the fertilization period required for corn growth.
1. Base fertilizer. 2000 kg - 3000 kg of organic fertilizer, all phosphate fertilizer, 1 3 nitrogen fertilizer, all potassium fertilizer as base fertilizer or seed fertilizer. It can be applied to the sowing furrow at one time in combination with plough ridge to make the fertilizer applied to the 10 cm - 15 cm tillage layer.
All chemical fertilizers can be used as base fertilizers.
2. Seed fertilizer. The amount of chemical fertilizer is 2 kg - 5 kg. However, the fertilizer must be separated from the seeds, and it is better to apply deep fertilizer, and the depth is 10 cm - 15 cm. Urea, ammonium bicarbonate.
Ammonium chloride and potassium chloride should not be used as seed fertilizer.
3. Top dressing. Top dressing is divided into four topdressing periods: seedling fertilizer, straw fertilizer, ear fertilizer and grain fertilizer, and the following two periods are the focus:
1) Within 10 days after the jointing of the straw fertilizer, the soil chef effect fertilizer was applied to promote stem growth and promote the differentiation of young panicles. 1 3 of nitrogen fertilizer in top dressing is used as jointing fertilizer, combined with shoveling, and the distance between fertilizer and seedlings is 5 cm - 7 cm.
2) The nitrogen fertilizer left over from ear fertilizer was applied at the large bell mouth stage 10 days to 15 days before maize tasseling, which could effectively promote large panicle and more grains, and had a good effect on grain filling in the later stage.
-
Potassium sulfate is good to avoid residual chloride ions, and if you plant chlorine crops in the next season, the soil will not work.
-
Potassium sulfate fertilizer is a kind of chemical fertilizer containing potassium, and the use of potassium sulfate fertilizer to top corn can have the following effects:
1.Promote the growth of corn: Potassium sulfate fertilizer is rich in potassium, which is one of the essential elements for plant growth, and the use of potassium sulfate fertilizer can promote the growth and development of corn.
2.Improve corn quality: Potassium sulfate fertilizer can improve the quality of corn and increase the starch content, making it sweeter and more delicious.
3.Stress resistance: Potassium sulfate fertilizer can enhance the stress resistance of corn, improve the resistance of corn to diseases and insects, and at the same time can enhance its adaptability to drought and improve yield.
4.Promote root development: Potassium sulfate fertilizer contains a high concentration of potassium, which can promote root development and enhance the nutrient absorption capacity of corn.
In general, the use of potassium sulfate fertilizer to top dressing corn can enhance the immunity and growth ability of corn, improve yield and quality. However, attention should be paid to the concentration and dosage when using it to avoid adverse effects caused by excessive fertilizer excess.
-
Yes, you can. Because corn needs to be supplemented with a certain amount of nutrients and water. Therefore, it is very effective to use potassium dihydrogen phosphate.
-
Yes. Potassium dihydrogen phosphate can effectively make corn absorb nutrients, receive light, and grow more rapidly, but the cost of potassium dihydrogen phosphate as fertilizer is too high.
-
Yes, it can efficiently supplement nutrients, and the utilization rate of fertilizer efficiency is also high, which can achieve twice the result with half the effort.
-
It is reported that yes. Ammonium sulfate is a kind of fast-acting nitrogen fertilizer, containing about 21% nitrogen content, and scientific application can play a role in supplementing nitrogen fertilizer. In addition, ammonium sulfate can be used instead of urea when planting corn, and it can also inhibit fungi in the soil, which has more effects than urea.
In fact, ammonium sulfate can be used when topdressing corn, you must know that ammonium thioplexate itself is a kind of nitrogen fertilizer, but its nitrogen content is not as high as urea.
Moreover, ammonium sulfate itself also has a certain inhibitory effect on fungi in the soil, and it can be used as top dressing for corn completely. Ammonium sulfate can be used in top dressing of corn, which is also a kind of nitrogen fertilizer, and appropriate application can play a role in supplementing nitrogen fertilizer.
-
OK. Corn-based fertilizer is the base fertilizer, which should be reapplied, mainly organic fertilizer, plus some fertile nitrogen, phosphorus and potassium compound fertilizer, and then add it appropriately if there is a lack of zinc. The base fertilizer is mainly farmhouse fertilizer, which is mainly made of livestock and poultry manure through fermentation and decay, which is rich in microorganisms, has the characteristics of long fertilizer efficiency and sufficient nutrients, and has an obvious effect on the improvement of soil physical and chemical properties.
In the application according to the soil fertility situation, generally apply about 2 tons of organic fertilizer per mu, and with 10 kg of ammonium fertilizer, 20 kg of phosphate fertilizer, and 6 kg of potassium fertilizer. If the plot is deficient in zinc fertilizer, about 2 kg of zinc sulfate fertilizer should be appropriately applied. The basal fertilizer is generally applied in combination with the ground before sowing, which can be applied in holes or strips, and after application, the fertilizer is covered with about 4 cm thick fine soil to avoid direct contact between the seeds and the fertilizer to burn.
Seedling fertilizer is generally applied when the plant grows to 3-4 leaves after emergence. With the rapid growth of plants, the amount of fertilizer required is increasing, and the seedling fertilizer should follow the principle of early application and light application.
-
Monoammonium sulfate can be used for top dressing of corn, but long-term use is easy to cause soil compaction.
-
Summary. Corn fields can use potassium sulfate compound fertilizer.
Potassium sulfate is a chemically neutral, physically acidic fertilizer, widely used in all kinds of soil and various crops, especially avoid chloride, potassium sulfate instead of potassium chloride, become a good potassium fertilizer. The specific methods of its use are mainly as follows:
Is potassium sulfate and compound fertilizer used to grow corn?
Corn fields can be used with potassium sulfate to attack compound fertilizer. Potassium sulfur is a chemically neutral, physically acidic fertilizer, which is widely used in all kinds of soils and various crops, especially to avoid chloride, potassium sulfate replaces potassium chloride and becomes a good potassium fertilizer. The specific methods of its use are mainly as follows:
1. It can be used as base fertilizer. When potassium sulfate is used as base fertilizer in dry fields, it is necessary to apply deep soil covering to reduce the crystal fixation of potassium, and facilitate the absorption of crop roots and improve the utilization rate. 2. Used as top dressing.
Due to the low mobility of potassium in the soil, it should be applied intensively to the soil layer with dense root system to promote absorption. 3. It can be used as seed fertilizer and root topdressing. The amount of seed fertilizer per mu can be prepared into a 2% 3% solution for topdressing outside the roots.
The silage corn is 53, the amount of fertilizer per mu is 50kg-60kg, and the nitrogen and phosphorus ratio is between. The amount of fertilizer should be increased according to the target yield in high-yield fields and seed fields. (1) Deep application of basal fertilizer (2) good use of seed fertilizer (3) topdressing in stages. >>>More
The process of tomato topdressing:
One control: the period from tomato planting to fruit set, should look at the seedling top dressing and control the amount of top dressing. If the top dressing is too much and too concentrated, it is easy to cause the plant to grow, and even cause flower and fruit drop. >>>More
Both cooked and raw corn are fine. It is mainly determined by the situation of the fish and the corn itself. >>>More
Grass carp fishing uses corn to grind corn into cornmeal first. >>>More
After the car has been used for a long time, remember to remove carbon deposits.