Characteristics of corn special fertilizer

According to the characteristics of soil fertility in China, corn special fertilizer was developed through soil testing formula. Nitrogen and phosphorus produced by patented technology of Chinese Academy of Sciences are added to the product. Potassium and other nutrient elements synergistic materials. Under the action of synergist, the fertilizer supply rate of nitrogen fertilizer conforms to the growth and fertilizer demand law of gramineous crops such as corn, prolongs the validity period of nitrogen fertilizer, ensures the nitrogen demand of gramineous crops such as corn in the growth period, and realizes one-time fertilization during sowing without topdressing during the whole growth period. The addition of trace elements such as phosphorus and potassium in this product fully supplements the sensitive elements of corn and other crops, and realizes that corn and other crops do not over-fertilize before growth, do not suddenly grow in the middle period, and do not lose fertilizer in the later period, thus achieving the purposes of increasing production and income, saving fertilizer, saving labor and saving money.

Main characteristics of corn special fertilizer:

1, and the effective period of fertilizer is long. The effective period of the fertilizer can reach 90- 120 days, and it is applied once in spring, and no topdressing is needed in the whole growth period.

2. Comprehensive nutrition and high utilization rate. This product contains 65438 08% nitrogen, 65438 00% phosphorus pentoxide, 65438 02% potassium oxide and 40% total nutrients. Under the action of nutrition synergist, the product growth regulator increased the nutrient utilization ratio by 10- 13% and increased the corn yield by 13%- 18% compared with the conventional compound fertilizer.

3. Save fertilizer and labor. This kind of productive fertilization does not need topdressing in the later stage, which simplifies the conventional fertilization of corn and solves the problem of difficult topdressing of film-covered corn.

4. Improve the stress resistance of maize and prolong the functional period of leaves. The product has long fertilizer effect period and reasonable nutrient distribution, which improves the drought resistance, premature aging resistance and lodging resistance of corn, and can basically realize the decomposition of live stalks.

How to use the product:

1. The recommended fertilization amount of this product is 40-50kg per mu. It should be applied once when sowing, and no topdressing is needed in the later stage. If the recommended fertilization amount is not reached, it is slightly higher than diammonium phosphate, but it should be properly topdressing in the later stage.

2. When planting fertilizer, it must be applied separately from the seeds. Variety specification formula (NPK) rot

type

ferment

chela

Fertilizer 52%18-14-20 50%16-14-20,18-/6,18-22. 16- 18- 16 48% 13-20- 15、20- 18- 10、 16- 16、24- 12- 1 2 45% 22-6543826-14-5 40% 26-5-9bb fertilizer 55% 29-16-10 53% 30-13-/kloc-0. -18 40%16-6-18 pure inorganic compound fertilizer 45%15-22-8 48%16-16 40% 65438+. 8+00(S), organic matter 20% 16% 14-0-2, organic fertilizer 4%, total nutrients 4%, organic matter 20%, drip irrigation compound fertilizer 46% 33-8-5 40% 30-5-5 27-8-5, foliar Slow down the release rate of nitrogen.

2. Improve soil and promote crop growth

3. Improve crop yield and quality. Organic humic acid 1. Improve the utilization rate of chemical fertilizer and increase fertilizer efficiency.

2. Improve the soil and increase the content of soil organic matter.

3. Promote the growth of crops

4. Improve the cold and drought resistance of crops. 5. Improve product quality. Vitalin 1. Promote the development, germination and growth of spores, and make the stems and leaves healthy.

2. Prevent rotten hearts and roots and promote grain fullness.

3. Increase crop yield and improve the appearance and quality of agricultural products.

4. Enhance crop resistance (disease, drought, waterlogging, lodging, pests) and increase output and income.

5. Improve the soil, make it more loose and fertile, and create a good environment for crop growth. Zinc sulfate 1. Provide trace element zinc needed for crop growth.

2. Enhance the photosynthesis of crops

3. Promote nitrogen metabolism

4. Enhance the cold resistance and drought resistance, and light burn magnesium 1. Depletes the photosynthesis of crops and promotes the synthesis of protein.

2. Increase crop yield and improve product quality.

3. Promote the absorption of silicon by plants and prevent the invasion of germs.

4. Reduce the absorption of manganese by plants, and reduce the impact of diseases when there is too much manganese.

General type:15-15-15 45%

Compound fertilizer:16-16-16 48%

Compound fertilizer:17-17-1751%

Compound fertilizer:18-18-18 54%

Compound fertilizer:15-10-15 40%

High nitrogen type: 25-0-0 25%

Compound fertilizer: 30-0-0 30%

Compound fertilizer: 30-5-0 35%

Compound fertilizer: 30-0-5 35%