What are the drought tolerant varieties of corn planted? What are the tips for seed selection?

First, I will list some of the corn varieties that are relatively recognized in the market. The drought-tolerant and high-temperature tolerant corn varieties include Zhengdan 958, Liangshuo 88, Long 88369, Zhongzhong 8, Denghai 605 and so on. In addition, there are corn varieties with better lodging resistance:

Jingke 389, Agrochemical 98, Denghai 605, Longping 206, Zhengdan 958 and other corn varieties have good market response. However, this is only for reference and cannot be purchased completely. Different regions have different planting environments, and whether the planting management is in place will affect the final yield of maize.

1. Selected improved seeds: use qualified seeds, select varieties with strong drought tolerance and late sowing resistance to ensure that the whole seedlings and even seedlings are produced.

2. Protect soil moisture: use no-tillage ditch (pond) transplanting or wet direct seeding to protect the original moisture of the soil, and do everything possible to collect farm fertilizer, crop residues, straw, etc. to cover the ditch (pond) to reduce soil moisture evaporation.

3. Apply drought-resistant sowing technology. (1) Wet direct seeding: according to the rainwater situation, timely lamination to protect moisture; After soaking, sow seeds in time and water thoroughly to ensure the emergence of seedlings.

2) Three dry sowing: according to the meteorological forecast, before the rain comes, timely prepare the geographical moisture, dry soil, dry fertilizer, dry seed sowing, pay attention to appropriate deep sowing. (3) Rain sowing:

In the case of a delay in the rainy season, sowing should be appropriately postponed.

4. Adopt seedling transplanting technology: the flat field in the dam area adopts plastic trays, nutrient bags, nutrient blocks and other ways to raise seedlings, and the mountainous and semi-mountainous areas adopt large bags of seedlings, each bag raises two plants, and transplants them when the two leaves are one heart or when it rains.

5. Promote plastic film covering technology: direct plastic film covering can achieve the effect of warming and moisturizing, and saving water. Direct seeding corn is sown by germination, covered with film after watering the bottom water, breaking the film in time after emergence, and using fine soil to protect the roots and keep warm and retain water.

Seedlings and transplanted corn are covered with film and then broken through the film to introduce seedlings, and the roots are protected with fine soil.

High oil corn: mostly yellow, the oil is mainly distributed in the embryo, the oil content is twice higher than that of ordinary corn, and the content of protein and lysine is also very high. High Lysine Corn:

The lysine content of endosperm protein exceeds 60% of the content of ordinary corn, and the protein quality is the same as that of cow's milk protein. The corn flour ground has a delicate texture and a sweet taste, which is a high-quality raw material for health food. Sweet Corn:

It is a variant of ordinary corn, the fruit shape is delicate, dignified, the flesh tissue is delicate, contains more juice, can be eaten as a fruit, can also be steamed, boiled, made soup, cooked, and has a wide range of applications.

Purchase approved varieties, according to the local environment, accumulated temperature, precipitation and other factors, to determine the growth period, disease resistance, drought tolerance, lodging resistance and so on of corn varieties. Looking at the previous crop variety, if the previous year's variety is not resistant to disease and is prone to infection, then this year's selection should avoid the variety, the same variety, can not be planted in the same place for more than 3 years. To see whether the seeds have impurities and whether the shape is full, try to choose varieties with similar grain shapes.

Smelling for mildew will affect the emergence rate. Feel the dryness of the seeds, and don't buy them if they're wet.

Xianyu 335, Nongda 108, Jundan 20 These three varieties are more drought tolerant, choose full grains, look at the audit date on the bag, and the seeds are large.

If you sow summer corn, don't follow the solar terms too much, harvest wheat as long as the moisture allows immediate sowing, if the ground is too dry, should be watered to create moisture, in order to ensure the emergence rate, if sowing too late, to the frost is still ripe, will seriously affect the yield and delay the next stubble wheat sowing! At present, the total accumulated temperature required for the growth period of the corn varieties we planted is 1800 2800, which cannot reach the accumulated temperature required for the growth of corn, and the corn will appear bald and lack of grains. Corn has the highest temperature requirements and the most sensitive response during the flowering period, and the most suitable temperature is 25 28.

Sowing points, it is best to take a wide and narrow row, a wide row of 70 cm, a narrow row of 30 cm, the purpose of this is to give full play to the advantages of ventilation and light transmission in the side row, and the wide row is convenient for people to weed, spray and other management of corn.

<> second is that most of them now choose to sow corn with machines, so when choosing a driver who sows corn machine, you must choose an experienced expert! For example, I suffered a big loss when I planted corn in 2017, because the driver is also the first year to start working in this industry, and the choice of varieties is very important. Each variety has a certain scope of application, and what is highly productive in one place may not be high in another.

Therefore, when choosing, it is necessary to choose varieties that are suitable for the local climate, resistant to disease and have high yields.

Corn planting is generally planted in spring, and a small number of areas also have the saying that corn is planted in autumn, and in the north because of the weather, environment and climate, corn is planted in spring and May, and it is harvested around October 1st! Scientific rejuvenation of agriculture believes that rushing to harvest and sowing is whatever the vast number of peasant friends must do at present, and it can also be said to be the top priority, rushing to harvest wheat, and then planting autumn grain corn as soon as possible. For corn, the growth period is about 120 days, and the longer period is only 130-140 days.

The whole growth and growth process of maize can be divided into 8 stages, namely: sowing, seedling, three-leaf, jointing, grain maturity, milk maturity, wax maturity and maturity stage, a total of 8 stages. The 8 growth periods of corn generally take about 70 to 150 days according to the corn variety and growth environment.

When planting, first of all, we must water less, strictly control the amount of watering, and we must plough the soil, we must choose high-quality disease-resistant seeds, when choosing soil, we must choose fertile soil, the soil should preferably contain a certain amount of organic matter, we must soak the seeds before planting, the temperature must be kept above 12, and nitrogen fertilizer must be the main fertilizer when fertilizing.

Be sure to choose the right land for planting, watering must pay attention to, easy to have problems, must pay attention to the use of fertilizer, to spray pesticides in time, so as to ensure the growth of the plant, when sowing, we must pay attention to the condition of the soil, disinfectant.

To plant drought-tolerant corn varieties, the first thing is to be careful not to water too much water, and secondly, you can apply fertilizer several times at the right time and add some trace elements.

Finally, we must prevent pests and diseases and spray more pesticides.

When planting this kind of corn, you need to pay attention to choosing loose granular soil to plant, so that the survival rate of corn will be higher, and you don't need to add too much water, but you need to add chemical fertilizer, so that the yield will increase.

First of all, it is necessary to pay attention to the selection of varieties, and then to choose the right soil, and then to ensure sufficient nutrients, and must be timely sterilization and insecticide, and then it is necessary to choose the right density and depth to ensure sufficient water sources.

1. The dragon is L2 high, the growth cycle is 122 days, and the fruit spike is cylindrical. 2. Zhengdan 958, with a plant height of about meters, has the largest planting area in China. 3. Liangshuo 88, the leaves are light green, and the growth cycle is 3 months.

4. Longyu 369, the plant shape is compact, and the leaf sheath is green. 5. Yandan No. 17, a hybrid variety, has the characteristics of high yield, drought resistance and disease resistance.

1. Dragon height L2

Longgao L2 is a high-yield drought-tolerant corn variety developed by Heilongjiang Academy of Agricultural Sciences, with a growth cycle of 122 days, a plant height of about rice, cylindrical ears, and orange-yellow grains.

2. Zhengdan 958

Zhengdan 958 is a new variety hybridized by Henan Academy of Agricultural Sciences, with a plant height of about meters and a fruit ear length of about 20 cm, with good resistance and drought tolerance, and is currently the largest corn variety in China.

3. Liangshuo 88

The plant height of Liangshuo 88 corn is about 1 meter, the ear height is 1 meter, the leaves are light green, the leaf sheath is light purple, and the growth cycle of summer sowing is only about three months.

4, Longyu 369

Longyu 369 corn can grow to the height of meters, its plant shape is compact, the leaves are dark green, the leaf sheath is green, the fruit is cylindrical when ripe, the cob is white, the grain is yellow, and it is semi-dentate.

5. Cigarette slip No. 17

Yandan No. 17 is a corn variety cross-bred by the Academy of Agricultural Sciences of Yantai City, Shandong Province, which has the characteristics of high yield, drought tolerance and disease resistance, and its growth cycle is only 100 days, and the yield per mu can reach 800 kg.

<> corn is afraid of waterlogging or drought generally needs to be determined according to the growth stage, at the seedling stage, corn is generally afraid of both drought and waterlogging, and at the big flare stage, it is more afraid of drought, plus this stage is also a critical period of water needs, so it needs to be watered in time. When the corn enters the tasseling and silking stage, it is very afraid of drought, so it also needs to be watered in time, but after continuous rainy days, it is usually necessary to drain the stagnant water in the field to prevent the corn from waterlogging.

1. Corn is afraid of waterlogging or drought

1. Corn is afraid of waterlogging or drought needs to be determined according to the growth stage, for example, at the seedling stage, corn is usually afraid of both drought and waterlogging, and the suitable soil moisture is 60-65% of the water holding capacity in the field.

2. When it enters the jointing stage, the drought resistance is relatively strong, and after encountering continuous rainy days, it is necessary to drain the stagnant water in the field in time to prevent waterlogging of corn.

3. In the big flare stage, corn is more afraid of drought, because this stage is also a critical period of water demand, so it needs to be watered in time to promote the development of fruit ears and the differentiation of female ears and florets.

4. When the corn enters the tasseling period, it is very afraid of drought, usually the closer to the silking period, the more afraid of drought, so it needs to be watered in time, and the field should be wet but not dry, but it is also necessary to discharge the stagnant water in the field in time after encountering continuous rainy days.

2. What are the varieties of corn that are resistant to waterlogging and drought?

1. Ruipu 909: It has good drought resistance, lodging resistance, barren and thin, its root system has a relatively strong ability to absorb water and fertilizer, and the yield per mu is generally catty, and the yield per mu of this variety can generally reach 2400 catties in the plots with high water and fertilizer.

2. Baqiang No. 10: The root system is developed, there are more aerial roots, the ability to resist lodging and drought is relatively strong, and the number of days of drought tolerance can generally reach more than 40 days, which belongs to a new variety of corn with high yield and stable yield.

3. Zhongdi 88: the stalk is tough, the elasticity is relatively large, the root system is developed, the lodging resistance is outstanding and the disease resistance is strong, and the ability to store water is strong, extremely drought resistant, after encountering the high temperature and drought years, the variety generally does not roll the leaves, has good fruiting, and belongs to the corn varieties with high yield and stable yield.

4. No. 8 Agricultural Science University: It has good lodging resistance and drought resistance, developed root system, firm grip, strong ability to absorb water and fertilizer, and drought resistance is more prominent when planted in the northwest hilly areas.

5. MC703: The whole growth period is about 107 days, with good lodging resistance, drought resistance and heat tolerance, developed root system, can absorb water and fertilizer well, and belongs to the new variety of drought-tolerant large ear anti-lodging corn.

6. Shaanxi Dan 650: It has the characteristics of drought resistance and early maturity, high yield, heat resistance, high yield, and the yield per mu of summer sowing is general, and the yield per mu of spring sowing is generally, which belongs to the new varieties of stable yield and high yield.

1. Xianyu 335

Xianyu 335 is an ordinary corn variety approved by the state in 2004, with yellow grains, semi-hard grains, and 100 grains. Artificial inoculation of disease (insect) resistance identification, high resistance to stem rot, medium resistance to powdery mildew, Curvularia leaf spot, susceptibility to large spot disease, small spot disease, dwarf mosaic disease and corn borer. It is suitable for summer sowing and planting in Henan, Hebei, Shandong, Shaanxi, Anhui and Shanxi Yuncheng, and should be used with caution in areas where leaf spot disease and dwarf mosaic disease are recurred.

2. No. 84 Agricultural University.

Characteristic characteristics, the leaf color of this variety is dark green, and the only thing that is judged to be the plum stalk is stout and the live stalk is mature. The growth period of summer sowing is 92 days, the plant height is 260 cm, and the ear height is 105 centimeters. The spike is coarse and cylindrical, 22 cm long, with yellow grains and a semi-dentate.

3. Fuyuan.