In agricultural production, farmers now choose maize varieties that are highly productive and resilient, which reduces management problems and ensures returns. A number of excellent varieties are prominent in disease resistance, inoculation and production and are suitable for cultivation in different regions。
Middle jade 505 is a wide range of adaptations that are replicated in 13 provinces and urban areas of the country. It is high and medium-sized, with an average of 306 centimetres high in the north-east medium-preparatory zone, 287 centimetres high in the north-eastern spring corn area, 274 centimetres high in the yellow cai sea, with a strong roots, a strong atmosphere and a strong grip on the ground, albeit not short in height, but with a strong stairwell, strong in strength, strong in strength, strong in strength and resilience. The fruit is large and the north-east region is about 20 centimetres long, with a maximum of 25-28 centimetres; and the hwang cai sea region is about 18 centimetres long, with a maximum of 24-26 centimetres long, with a maximum of 18-20 rows long. Production performance was remarkable, with the north-east region having an increase of 3. 4-4. 9 per cent compared to the pre-janyu 335, an increase of 6. 7-8. 4 per cent compared with zheng sl. 958 and the hwang sl. 5. 4-8. 0 per cent compared to zl. 958. In terms of disease resistance, it is good for rust and abdominal disease in the south, with a growth in the activity pole, long length of time for the blade function, and sufficient seed granulation. Vegetable drums, red-axis yellow grains, semi-mony teeth, 753-763 g/l, good merchandise。
It is suitable for the mid-summer corn-sowning area of the yellow sea, with a full reproductive life of about 102 days. An average of 250-260 centimetres tall and 90 centimetres tall, with strong and strong stasis, strong roots, deep roots, strong grips and strong resistance to drought and flooding. The male has many branches, a large amount of pollen, an upswing of leaf blades, resistance to heat and heat, a strong energy of pollen, good pollination and solidity. The fruit drum type, typically 16. 5-25 cm long, 5. 1 cm thick, lines 14-16, axle red, seed-coloured, horse-pattern type, and thousands of grains weighing 371. 2 g. After inoculation and field performance, high levels of resistance to tuber disease, southern rust disease and maize scabs, a mature living tree, long standing hours, rapid dehydration of seeds, suitable for mechanical harvesting. Production has also been high, with a general acreage of 663-722. 9 kg in the south of hebei, a general acreage of 641 kg in henan, a measured 13 per cent of the total acreage of 1716. 16 kg in hebei province, a hard seed bearing 772 g/l, a rough starry content of 76. 74 per cent and a crude protein content of 10. 36 per cent, and good quality, a food-for-grain type。
In the shandong region, there are a number of high-yielding and rust-resistant species, such as zhua, 703, compact, approximately 279 cm tall, and around 109 cm tall, with well-developed roots, zhuang guangdor, gripping the ground, and fighting back. The total fertility period was 102 days, the fruit drum type, the axle red, the ear length 4. 7-5. 2 cm, the ear length 20. 5-30 cm, the row number 14-16 lines, the seed pellets yellow, the semi-martial type, and the weight of 100 grains 35. 9 g. The average acre is about 1358 pounds, with a maximum of 1880 pounds. Jubilee 100 is also good, with a total of 102 days during the summer season, approximately 270 centimetres tall, 97 centimetres high in the ear, a sibling type, axle red, about 18. 4 centimetres long, lines 14-16, seeds of yellow, semi-map teeth, and 34. 2 grams heavy. Fight against southern rusty disease, small scabs, middle scavengers, tubers, an average acre production of about 1,500 pounds, a maximum of 2,000 pounds, with high yield potential。
Rupees 218 and 705 are also the species chosen by the farmers, and the pumps 218 are resistant to drought and rust and mature; the 705 are well-mannered and have high output against rust and are suitable for cultivation in the respective areas。
Different varieties are cultivated, such as middle jade 505 in the north-east spring between late april and early may, with a density of around 4,000 acres per acre; the presumptuous 178 summer broadcasts with 4,500 acres per acre in early june, with seedlings to be weeded, post-preparatory scavengers and aphids; and the range in shandong to be timed for planting and pest control, with timely harvesting at the tip of the seed。
