What kind of fertilizer should be used for corn seed fertilizer? Is it okay to not cover soil after fertilization?

1. Seed dressing: humic acid, biological fertilizer and micro-fertilizer can be used to dissolve the fertilizer and spray it on the corn seeds.

2. Soaking seeds: Dissolve the fertilizer to a certain concentration, and soak the seeds in the solution for 12 hours.

3. Characteristics of fertilizer requirements: The nutrient requirements of corn throughout the growth cycle are the most nitrogen elements, followed by potassium, and phosphorus elements are the third, and also need an appropriate amount of mineral element supplementation. When the ratio of nitrogen, phosphorus and potassium is 1:0.49:0.9, the growth of corn Better, higher yield.

1. What kind of fertilizer is used for corn seed fertilizer

1. Seed dressing

For seed dressing, humic acid, biological fertilizer and micro-fertilizer can be used. First dissolve the fertilizer, and then spray it on the corn seeds. Be sure to mix while spraying. In this way, the fertilizer solution can be evenly stained on the surface of the seeds, and the seeds can be dried before sowing.

2. Seed soaking

The fertilizer is dissolved and configured to a certain concentration, and then the seeds are soaked in the solution for about 12 hours, and finally dried in the shade for sowing.

3, the characteristics of fertilizer

In the whole growth cycle of corn, the demand for nitrogen is the highest, potassium is the second, and phosphorus is the third. At the same time, it also needs to provide an appropriate amount of mineral elements. When the ratio of nitrogen, phosphorus and potassium is 1:0.49:0.9, the growth of corn is better. , the output will be higher. The root system of corn seedlings is underdeveloped and the ability to absorb nutrients is weak. It is necessary to choose fertilizers containing quick-acting nutrients as seed fertilizers, and at the same time, mature farmyard manure can also be used as seed fertilizers. Generally, about 6 kg of ammonium sulfate or 500 kg of decomposed farmyard manure is applied per mu, and then an appropriate amount of phosphorus and potassium fertilizer can be added.

2. Is it okay to plant corn without covering soil after fertilization?

1. Be sure to cover the soil after fertilizing the corn. If the soil cover is too shallow after fertilization, nitrogen will be scattered to the surface layer, and the corn plant can only absorb about 20%. If the deep application is about 10 cm and the soil is covered and compacted in time, the absorption capacity can reach more than 60%. Fertilizing corn at the right time can promote the fastest and most efficient absorption of nutrients by corn, promote corn growth, and increase yield. The best period for corn topdressing is in the big bell mouth period, during which corn needs more nutrients.

2. The fertilizer applied during the growth period of corn is called top dressing, and it can be used at the peak of corn fertilizer absorption. During the growth process of maize, there are three peaks of fertilizer absorption, namely the jointing stage, the large bell mouth stage and the tasseling and silking stage. After the corn enters the jointing stage, the growth of the vegetative body will accelerate, the tassel is undergoing differentiation, and the female ear is about to start to differentiate. At this time, the requirement of nutrients for corn is relatively high.

3. The top dressing depends on the nature of the soil. Generally, acid or physiological acid fertilizers such as ammonium nitrate, ammonium sulfate and superphosphate can be used as top dressing for low-lying and alkaline land. Alkaline fertilizers such as urea and ammonium bicarbonate should be used as top-dressing fertilizers for acidic soils, and non-volatile ammonium nitrate or urea should be used as top-dressing fertilizers for sandy loam soils with poor water and fertilizer retention capabilities.