Corn Planting Methods

Today I will tell you about the planting method of corn. It is very good for everyone to take a good look:

1: Land preparation for corn.

Corn is a light-loving crop that needs water but is afraid of waterlogging. It has different water requirements at different growth stages and requires fertile soil that can be irrigated and drained. Therefore, three trenches should be dug during land preparation, namely the main trench, the surrounding trench and the side trench, and the trenches should be connected, without water accumulation, and can be irrigated and drained. It is best to plow the frozen soil every other year or plant a season of winter vegetables for corn preparation. When corn is planted in the second year, the soil is loose and dry, with a good pellet structure, which is conducive to corn growth. If the soil is not plowed every other year, choose a sunny day after the spring to prepare the land in time, and keep the soil dry to prevent caking and affecting root growth. At the same time, weeds should be removed.

2: Corn water and fertilizer management.

Corn is a high-yield crop that requires a large amount of fertilizer. Reasonable fertilization is necessary to meet the nutrient needs of corn throughout its growth period. According to experiments, 2.5 kg of nitrogen, 1 kg of phosphorus, and 2.1 kg of potassium are required to produce 100 kg of corn seeds. If the yield of corn per mu is 500 kg, about 33 kg of urea, or 50 kg of ammonium nitrate, 31 kg of superphosphate, and 13 kg of potassium sulfate are required per mu.

The three stages of corn growth require different amounts of fertilizer, with the seedling stage accounting for 2% of the total fertilizer requirement, the ear stage accounting for 85%, and the grain stage accounting for 13%. From the jointing stage to the big bell stage, corn is in the peak period of fertilizer demand. When applying fertilizer, it is necessary to apply it reasonably, that is, combine base fertilizer, seed fertilizer, and topdressing; combine nitrogen fertilizer, phosphorus fertilizer, and potassium fertilizer; and combine agricultural fertilizer, chemical fertilizer, and biological fertilizer.

(1) Base fertilizer: When preparing the land before sowing, apply 1,000 kg of high-quality organic fertilizer (such as pig manure) per mu, 80 kg of compound fertilizer with an effective content of 25%, plus 1 kg each of ZnSO4 (zinc sulfate) and MnSO4 (manganese sulfate), plus 2 liang of borax (which can kill bacteria) (it is better to apply it in a row: dig a trench between the crop rows near the roots of the crop and apply the fertilizer into the trench); there is now a special fertilizer for corn.

(2) Apply fertilizer to promote seedling growth at the 3-leaf and 1-heart stage. Mix 1.5 to 2 handfuls of urea with 10 kg of water and irrigate the roots. (Note: Do not irrigate the leaves, otherwise it will burn the seedlings.)

(3) Apply top dressing once when the corn leaves are 6 leaves. Use the hole-fertilization method (i.e. use a thick wooden stick to make a hole 8-10 cm away from the root of each corn plant, use the tip of an ordinary mineral water bottle cap to put urea in the hole, and then cover the hole). Note that the soil must be kept moist at this time. If the soil is dry, add half a cup of water after fertilization. Do not water too much. The soil should be moist.

(4) Apply fertilizer again when the plants have 12 leaves. Apply 2 to 3 caps of mineral water bottle caps to each plant, sprinkle directly on the roots, and then add soil. (Add soil: add soil from the rows or furrows to the base of the plants and the ridge surface to form ridges or high ridges. Adding soil can increase the thickness of the fertile soil layer for root activity, which is beneficial for drought prevention and moisture conservation, drainage and waterlogging prevention, and can also promote the formation of secondary roots on plants buried in the soil, and create a good root extension environment for the growth of adventitious roots, which is beneficial for preventing lodging and reducing weed damage.) After adding soil, irrigate thoroughly.

(5) Water the corn thoroughly when it is tasseling or silking. If the leaves are not curling at noon, do not water it, because corn is a drought-resistant plant and overwatering is not good.