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In fact, in the final analysis, the quality of a corn variety mainly depends on whether it is suitable for the local planting environment, and the resistance of corn varieties. But since I've written about this issue, I'll talk to you about it again.
First of all, take a look at the corn varieties that are currently recognized in the market and are quite good, in fact, there are many corn varieties, and there will be a large number of new corn varieties on the market every year, which does expand the range of corn varieties for farmers, and of course also makes farmers more confused.
At present, the corn varieties with better recognition in the market are: Zhengdan 958, Tunyu 808, Xianyu 335, Denghai 652, Longping 206, Nongda 108 and other corn varieties. Because there are so many varieties of corn, I won't list them too much here.
Most of the above-mentioned corn varieties are also relatively old varieties, at least in terms of stable yield, it is still relatively guaranteed.
In fact, if you want to understand which corn varieties are better, the first thing you must do is to understand the characteristics of high-quality corn varieties. The first thing is to make sure that the corn seeds you buy belong to the regular variety. Before purchasing, be sure to check whether the packaging of corn seeds has the relevant approval number on it.
This number is equivalent to our ID number. For example, the approval number of Xianyu 335 is: Guozhuan Yu 2004017 (summer sowing), which means that Xianyu 335 corn seeds were approved by the National Crop Variety Examination and Approval Committee in 2004.
The number is 017. At the very least, such corn varieties are of guaranteed quality.
Secondly, it is better to buy new seeds of the current year rather than old seeds. The germination rate of new seeds is better, and the color of new seeds is generally bright, not only the germination rate is high, but the growth of corn sprouts will be better. The method of identifying new seeds is generally to put your hand into the seed, if the hand is stained with white powder, it is best not to buy this kind of seed, it is generally an old seed or the seed is insect.
In addition, it is best to have a uniform seed size, and there should be no large and small grains, otherwise it is easy to have large and small seedlings when planted.
The third is that all indicators of seeds should meet national standards. For example, the purity of the seeds should be higher than 96%, and the germination rate and vigor should also be high.
In addition to the above rigid requirements, a high-quality corn seed must be "well resistant", which means that the corn seed has strong ability to resist disease, lodging, drought and stress. This corn seed with good resistance can achieve stable yield, otherwise the seed with bad resistance can not even guarantee stable yield, so how can it be said that high yield?
However, the most important thing is to choose the right corn varieties according to the actual local planting environment, and do a good job in field management, so as to better play the role of good corn varieties.
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Good corn varieties include Zhengdan 958, Jingke 968, Liangyu 99, Xianyu 355, Tiannong 9, Yufeng 303 and so on.
1. Zhengdan 958
Zhengdan 958 is the largest corn variety in China, and has been promoted nearly 500 million mu in the country. This variety is a medium-ripening maize hybrid, with a plant height of about 246 cm and an ear height of about 110 cm. The grain is yellow, semi-dentate, white axis, deep grain axis is fine, and the seed yield is about 90%.
The growth period is about 96 days for summer sowing and about 105 days for spring sowing. Good comprehensive resistance and good firmness.
2. Jingke 968
In 2018, it passed the national approval, suitable for a wide area, suitable for planting in North East China, Northwest and Southeast Spring Maize Areas, 128 days from seedling to maturity in North East China, semi-compact plant type, plant height of 296 cm, ear height of 120 cm, and an absolute advantage in Tongliao in Inner Mongolia.
3. Liangyu 99
It takes about 128 days from seedling emergence to maturity in North East China, and about 98 days for summer sowing. It is suitable for plots above medium fertility and can be planted in a variety of planting methods. Generally, the yield per mu is about 800 to 900 kg, and it can reach about 1100 kg in the case of high-yield cultivation.
Fourth, Xianyu 355
Since its approval by the state in 2004, it has passed the jury examination and filing of more than 20 provinces, municipalities and autonomous regions such as Liaoning, Xinjiang, Gansu and Heilongjiang. This variety has good adaptability, and the planting area is second only to Zhengdan 958, and it is one of the two major corn varieties promoted by the Ministry of Agriculture to the whole country.
5. Tiannong 9
In 2007, it was approved by Liaoning Province, and is suitable for planting in Liaoning Fushun, Tieling, Jilin, Heilongjiang, Inner Mongolia Tongliao, Chifeng and other early-maturing corn areas with an effective accumulated temperature of more than 2650, compact, with a plant height of 284cm and an ear position of 118cm, which is one of the varieties with a large area of promotion in Heilongjiang in recent years.
6. Yufeng 303
It takes 125 days for the spring maize area in North East China to mature from seedling to mu, which is equivalent to Zhengdan 958. The plant type is semi-compact, the plant height is 296 cm, the cob is red, the grains are yellow, semi-dentate, and the weight of 100 grains is grams. In the production test in 2014, the average yield per mu was kilograms, which was higher than that of the control Zhengdan 958.
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Corn varieties. Common corn varieties are: sweet corn, waxy corn, high-oil corn, purple corn, genetically modified corn, popcorn, high-quality protein corn, etc.
Among them, sweet corn and waxy corn have good taste and strong fragrance, and the yield of semi-purslane corn varieties is high. Xianyu 335 has a high yield, and the corn is not suitable for potted cultivation and is suitable for field cultivation.
Sweet corn. It is widely planted in Guangxi, Hubei, Henan, Hebei and other places in China. Spring is suitable for planting in April, and harvesting is available in late August. The yield of sweet corn per mu is more than 1200 catties.
Waxy corn. It is generally planted in a humid and warm place. It is planted at the end of February or late March in the spring and is available from August to September. The yield per mu is about 800-1200 catties.
High oil corn. It is generally planted in a humid place, and the four celery shades the filial piety season. It can be planted in spring and autumn, and it is marketed when it is mature in autumn. The yield per mu is about 1,000 catties.
Purple corn. It is generally planted in cold and dry places, mainly planted in spring and harvested in autumn. August to September is the maturity period, and the yield per mu is only about 500 kg.
There are many varieties of corn on the market, which also leads to many people not knowing which corn variety to choose to ensure high yield when planting corn. At present, the better varieties on the market are Xianyu 335, Denghai 605 and so on. In addition to seeds, if you want to improve the yield of corn, you need to choose the right time for sowing, generally speaking, April is the best sowing period, it is best to choose to plant in a fertile area to improve the yield of corn, and at the same time in the process of corn production, it is also necessary to fertilize scientifically, regularly and quantitatively control the fertilizer, so that the growth rate of corn can be improved, and the yield of corn can also be guaranteed. >>>More
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