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How to manage summer corn seedlings? These technical points must be mastered
How to manage summer corn seedlings? Here is how summer corn seedlings can be managed: 1. Check seedlings and fill gaps. After emergence, frequently check the field for seedlings, and promptly reseed or transplant when gaps are found. If few seedlings are missing, leave double seedlings on both sides of the gap; if many are missing, when the corn has 2 to 3 leaves, transplant good seedlings with a ball of soil and water...
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How is corn bred? Understanding corn breeding methods in one article
How is corn bred? Please explain corn's natural cross-pollination habit and the heterozygosity of its genetic basis, as well as the breeding procedure that exploits the heterosis of F1 generations between inbred lines arising from this, which together form the particularity of corn breeding. With almost no exception, every successful corn breeder and research institute starts from...
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How is the sowing time for summer corn determined? Mastering these methods is enough
How is the sowing time for summer corn determined? Please give guidance. Because the period available for corn growth in summer corn regions is limited, in order to obtain enough heat, allow the corn to fully mature, harvest it in time, obtain a relatively high yield, and not delay the normal sowing of the following wheat crop, the sowing time for summer-sown corn should be as early as possible. That is, winter wheat...
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Complete Guide to Summer Corn Pest and Disease Control
How do you control summer corn pests and diseases? Here is an introduction. During the summer sowing period and seedling stage, many types of pests, diseases and weeds occur, and the damage is severe. If control is poor, it very easily causes missing plants and broken rows, leading to reduced yield. Therefore, throughout the entire growth period of corn, carrying out comprehensive control of pests, diseases and weeds at the sowing and seedling stages is crucial. First...
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What are the precautions for sowing summer corn?
What should be noted when sowing summer corn? Please give some guidance. When sowing summer corn, note the following: 1. Delay sowing appropriately. The best sowing period for summer corn is from June 20 to 30, which avoids high temperatures during tasseling and helps achieve high yields. Corn should not be planted in successive cropping. After sowing, use one bottle of Yunongsi per mu, diluted in 100 jin of water, and spray to kill weeds. ...
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What common problems affect summer corn yield?
What problems affect summer corn yield? Please give an introduction. The main factors affecting summer corn yield are as follows: 1. Careless selection of seeds. Because the current seed breeding system is still not perfect enough, substandard corn seeds still account for a relatively large proportion. Some farmers covet cheap prices and buy from small vendors or irregular seed...
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How to control weeds, pests and diseases during summer corn cultivation?
How to control weeds, pests and diseases when planting summer corn? Please explain: after sowing summer corn and before emergence, it is susceptible to damage from underground pests such as cutworms; at the seedling stage it faces damage from small brown planthoppers, Athetis lepigone, wireworms, thrips, aphids, etc.; at the grain-filling stage, major diseases such as stalk rot (green wilt), ear rot, leaf spot diseases and southern rust occur locally, and major pests such as corn borers and aphids cause severe damage; there may also be harmful organisms that cause corn lodging and stalk breakage, affecting corn yield and mechanized operations.
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What should be noted in summer corn seedling stage management?
What should be noted for summer corn seedlings? Here is an introduction. The following points should be noted for summer corn seedlings: 1. Check seedlings and fill gaps to prevent missing seedlings and broken rows. To ensure a full stand, check seedlings and fill gaps in time. After sprouting early-maturing varieties, replant, or before the seedlings reach the 4-5 leaf stage, transplant seedlings with soil in the afternoon or on cloudy days. When corn has 3-4 leaves, thin...
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What are the field management methods for summer corn planting?
How should summer-planted corn be managed? Please give guidance. For summer-planted corn, the following methods can be used for management: 1. Reasonably determine planting density. Planting density is the key to achieving a bumper corn harvest. The suitable density should be determined according to factors such as variety characteristics and soil fertility level. Thin and final thinning should be done in a timely manner to ensure planting density...
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How can corn be managed better in the middle and late stages?
How should corn be managed well in the middle and late stages of cultivation? Please give guidance. The management of corn in the middle and late growth stages can refer to the following methods: Fertilization 1. Ear fertilizer. Generally, heavy nitrogen application is done at the large trumpet stage, accounting for about 50% of the total topdressing amount, with 30-40 kg of standard nitrogen fertilizer applied per mu. 2. Grain fertilizer. Generally accounts for about 10% of the total topdressing amount...
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