Corn fertilization time and method

Corn fertilization time:

Corn fertilizer time in the corn grow 6 to 8 leaves, seedling height 30cm, this period of time on the growth of corn, yield has a great role in promoting. In addition, fertilizer should not be too late, the weather does not rain should not be fertilizer.

Fertilization methods:

1, seedling fertilizer

Corn in the seedling fertilizer needs a lot of fertilizer, should be light fertilizer, the period of time the main application of fast-acting nitrogen fertilizer, appropriate with phosphorus, potash, and rotted farmyard manure, in the maize 3-4 leaves when the hole strips for the application of, per acre can be applied to the 500 kilograms of rotted farmyard manure + 2-3 kilograms of urea, and according to the corn growth to determine the number of fertilizer, if the growth of thriving does not need to be fertilized.

2, nodulation fertilizer

The fertilizer is to enhance and prolong the photosynthesis of the leaves, to promote the corn strong stalks, increase spike, fertilizer mainly fast-acting nitrogen fertilizer is mainly in the maize 7-9 leaves when the hole, for the phosphorus and potash fertilizer is not enough for the plots, but also need to be applied into the appropriate amount of three compound fertilizer, with the application of well-rotted farmyard manure is more effective.

3, spike fertilizer

The fertilizer in the trumpet period, mainly to promote the spikelet floret differentiation, so that the spike spike large grains, increase the upper leaves, should be fast-acting nitrogen fertilizer, and into the appropriate amount of phosphorus and potash fertilizer, fertilizer, high fertility of the plots of the chase 15-17 kg, the general plots of 18-20 kg, the basal fertilizer shortage of the plots of the need for the chase 22-25 kg, the growing Density should be applied more.

Corn planting methods:

1, the whole land fertilization

Planting corn before, the need for land fertilization treatment. First of all, you need to select the micronutrient content is relatively rich, good drainage humus as the base soil, and its deep turning and drying, eliminate the soil bacteria and pests, but also to the soil mixed with fertilizer, improve the soil's fertilizer content.

2, seedling treatment

When planting corn, it is necessary to seedling treatment. First of all, you need to mix the humus with water to make a batch of palm-sized soil balls, and then use your fingers to press a small hole in the center of the soil ball, and put the corn seeds into it, and use fine soil to cover it. You can also build a warm shelter for the corn to help the seeds germinate and grow during the seedling process.

3, transplanting and planting

After the successful germination of corn seeds, you need to regularly observe the growth of seedlings. In the corn seedlings to ten centimeters, you can remove the growth of weak seedlings, and then other seedlings with soil dug out, transplanted in advance to prepare the soil can be, planting the need to control the spacing in twenty-five centimeters.

4, late management

After transplanting, you can water the corn uncontaminated natural water, river water, to keep the soil in a moist state, but also for the corn to provide nitrogen-based, phosphorus and potash fertilizers as a supplement to the fertilizers, to improve the plant's growth rate, but also for the corn to provide a full day of sunlight, so that the plant can grow more exuberant.