Northern corn can be planted in the earliest months, mu yield is generally how much

The northern planting of corn is generally in the spring and fall, the spring climate is first drought and then flooding, so the earliest sowing time is more in late April to early May, and wait until August can be harvested, and the fall sowing time is not more than mid-July at the latest, and wait until the middle to late October can be harvested. Planting corn is generally to choose in the deep and soft soil, in order to improve the fertility of the soil, you need to apply enough fertilizer before planting.

First, the earliest months of corn in the north can be planted

1, the northern planting of corn is mainly in the spring and fall. Spring climate is generally drought after flooding, so the earliest sowing time can generally choose late April to early May, so wait until August can be harvested. Autumn sowing time should not be later than mid-July, so that the harvest can be carried out in mid- to late October.

2, planting corn must be in the deep and soft soil, in order to improve the fertility of the soil, before planting you can apply enough bottom fertilizer. Usually 2,000 kg per acre of rotting organic fertilizer, but also supplemented with 7.5 kg of phosphorus pentoxide and 5.5 kg of potash.

3, before planting corn, to deal with the seeds, you can soak the seeds into the water, let it fully absorb water, which can promote germination. At the same time but also with potassium dihydrogen phosphate and other drugs will be soaked for a period of time, soak one to control the concentration and time, if the concentration is too high or soak time is too long, it will lead to seed poisoning, reduce the germination rate. Soak the seeds and then use pesticides to mix the seeds, so that you can prevent all kinds of pests and diseases in the seedling period.

4, planting can be evenly sown corn seeds into the soil, the depth of sowing must be consistent, so that the seedlings will be neat. Before sowing, it is necessary to pour enough water, so that there is no need to water after planting, so that the seeds will not flow away with the water. Before the emergence of seedlings, the seeds have a low demand for water, and the humidity of the soil should not be too high, so as not to root y, resulting in late collapse.

Second, the northern corn mu yield is generally how much

1, corn in different areas, different time planting yield will be different. Generally in Liaoning Province, Jilin Province and Heilongjiang Province planting conventional corn, usually mu yield of 1000-1400 pounds or so; in the Huanghuaihai region planting summer corn, mu yield is generally about 1200 pounds; in Xinjiang planting yield can generally be as high as 1400-1800 pounds or so.

2, if you want to improve the yield of corn must choose high yield, disease resistance and strong ability to adapt to the local environment of the varieties, such as Denghai series and the first jade series. After purchasing the seeds, the seeds should be screened first, eliminating the empty grains, deflated grains, be sure to select the full and rounded corn kernels for sowing. After selection, you can use the seed coating agent to coat the seeds, and the seed coating agent you choose is Fosetyl? Kepaway suspension agent can be.

3, fertilization should also pay attention to, can be in accordance with the base fertilizer, fertilizer supplement; nitrogen fertilizer, phosphorus fertilizer supplement; spike fertilizer, grain fertilizer supplement the principle of fertilization. After deep plowing and deep turning of the land, be sure to apply enough bottom fertilizer, bottom fertilizer to rotting organic fertilizer. Fertilizer can be applied 15kg of nitrogen per mu, 4kg of phosphate, 5kg of potash, 1.5kg of zinc sulfate, before corn pulling, you can phosphorus, potassium, sulfur, zinc fertilizer and nitrogen fertilizer used for fertilizer 15-20cm deep, in the corn trumpet period, you can follow up on the total amount of nitrogen 50% of the fertilizer.