First, choose a good winter base (1) climatic conditions. There are many areas in Chuxiong Prefecture that are warm in winter and frost-free or short-lived with frost all year round. Riversides, river valleys, and heat dams below 1,100 meters above sea level, the average annual temperature is above 18°C, and the minimum temperature is above 6°C in January. Winter corn. Such as Yuanmou Bazi, Shuangbaitai river valley, Chuxiong city Malong valley area, Wuding Dongpo river valley and other places.
(2) Water and soil conditions. Since Chuxiong Prefecture is in the dry season from November to May of the following year, planting winter corn must first be guaranteed by irrigation conditions to obtain high yields. In the riverside valley and the dam, it is advisable to choose sandy loam, oil sand, loam, and clips for the night tide. The paddy field in the dam area is preferably sandy loam soil. If it is clay or clay soil, it is necessary to turn the plough soil as soon as possible, fine soil preparation, picking the watering pond to sow (seed germination treatment), and then cover the film to strengthen management and timely rupture of the membrane. Pulling seedlings, pressing soil, fertilizing, and watering can grow well.
Second, the appropriate sowing time sowing winter sowing of corn, first of all, we must consider the time for the winter and the spring convergence, if sowing late, delayed maturity, can not keep up with the normal sowing season of heavy spring crops. Second, it is necessary to identify the month and duration of the local low temperature, to avoid the flowering period and the low temperature stage of the maize, resulting in poor flowering, low yield, or no yield. In most winter sowing areas, low temperatures often occur from late December to mid-January of the following year. The adjustment of the sowing date is mainly to allow the flowering loose powder period to escape the influence of low temperature in January. Third, to grasp the growth period of the breed, it is possible to escape the low temperature, and it will not mature too late, which is beneficial to sowing in the spring.
The same variety is cultivated in different sowing seasons, different altitude areas, and even in film-covered and open fields. The growth period is different. Generally, winter sowing is 20-25 days longer than spring sowing, and the period from emergence to silking is 15 days longer than spring sowing. About 10 days from pollination to maturity. For every 100 meters above sea level, the growth period is extended by about 4 days, and the exposed area is about 20 days longer than the cover.
Third, cover film cultivation Winter sowing should adhere to intensive cultivation, ensure the quality of sowing, so that the land is fine, open trenches, 80 centimeters surface, double line seeding or playing ponds on demand, appropriately increase the amount of sowing, cover soil should not be thick, using "Three tides" sowing, film cultivation, and strive to Miao whole, Miao Qi, Miao Zhuang, a reasonable close planting, planting 5000 ~ 5500 per acre. In addition, we must pay attention to preventing and controlling mice before sowing, and prevent and control underground pests after emergence.
Fourth, strengthen field management (1) timely irrigation and fertilizer. It is very important to strengthen the water and fertilizer management in order to make winter corn seedlings strong, healthy, large and full. 15 to 20 days after the start of the top dressing, Shantou Road. As the winter and spring climate is dry, fertilization at the seedling stage requires eating less and more meals. The fertilizer is applied 3 centimeters away from the root and applied or watered, 2 or 3 times, so that the seedlings can grow vigorously before entering the low temperature and enhance their cold resistance. As the temperature has just begun to rise, the corn has entered the jointing circle and it is necessary to re-apply the top dressing and dilute it.
(2) Artificially assisted pollination. In winter sowing area, the weather in spring is dry and windy, and the pollen is much less than spring sowing, which is unfavorable for pollination of corn. The atmosphere is dry and can be sprayed at 11 o'clock in the morning to increase the humidity and make the filaments moist and improve the pollination rate. It is necessary to seize artificial flowering for artificial pollination to increase the seed setting rate. The winter corn borers, aphids, and rodent pests are serious and must be carefully controlled.
(2) Water and soil conditions. Since Chuxiong Prefecture is in the dry season from November to May of the following year, planting winter corn must first be guaranteed by irrigation conditions to obtain high yields. In the riverside valley and the dam, it is advisable to choose sandy loam, oil sand, loam, and clips for the night tide. The paddy field in the dam area is preferably sandy loam soil. If it is clay or clay soil, it is necessary to turn the plough soil as soon as possible, fine soil preparation, picking the watering pond to sow (seed germination treatment), and then cover the film to strengthen management and timely rupture of the membrane. Pulling seedlings, pressing soil, fertilizing, and watering can grow well.
Second, the appropriate sowing time sowing winter sowing of corn, first of all, we must consider the time for the winter and the spring convergence, if sowing late, delayed maturity, can not keep up with the normal sowing season of heavy spring crops. Second, it is necessary to identify the month and duration of the local low temperature, to avoid the flowering period and the low temperature stage of the maize, resulting in poor flowering, low yield, or no yield. In most winter sowing areas, low temperatures often occur from late December to mid-January of the following year. The adjustment of the sowing date is mainly to allow the flowering loose powder period to escape the influence of low temperature in January. Third, to grasp the growth period of the breed, it is possible to escape the low temperature, and it will not mature too late, which is beneficial to sowing in the spring.
The same variety is cultivated in different sowing seasons, different altitude areas, and even in film-covered and open fields. The growth period is different. Generally, winter sowing is 20-25 days longer than spring sowing, and the period from emergence to silking is 15 days longer than spring sowing. About 10 days from pollination to maturity. For every 100 meters above sea level, the growth period is extended by about 4 days, and the exposed area is about 20 days longer than the cover.
Third, cover film cultivation Winter sowing should adhere to intensive cultivation, ensure the quality of sowing, so that the land is fine, open trenches, 80 centimeters surface, double line seeding or playing ponds on demand, appropriately increase the amount of sowing, cover soil should not be thick, using "Three tides" sowing, film cultivation, and strive to Miao whole, Miao Qi, Miao Zhuang, a reasonable close planting, planting 5000 ~ 5500 per acre. In addition, we must pay attention to preventing and controlling mice before sowing, and prevent and control underground pests after emergence.
Fourth, strengthen field management (1) timely irrigation and fertilizer. It is very important to strengthen the water and fertilizer management in order to make winter corn seedlings strong, healthy, large and full. 15 to 20 days after the start of the top dressing, Shantou Road. As the winter and spring climate is dry, fertilization at the seedling stage requires eating less and more meals. The fertilizer is applied 3 centimeters away from the root and applied or watered, 2 or 3 times, so that the seedlings can grow vigorously before entering the low temperature and enhance their cold resistance. As the temperature has just begun to rise, the corn has entered the jointing circle and it is necessary to re-apply the top dressing and dilute it.
(2) Artificially assisted pollination. In winter sowing area, the weather in spring is dry and windy, and the pollen is much less than spring sowing, which is unfavorable for pollination of corn. The atmosphere is dry and can be sprayed at 11 o'clock in the morning to increase the humidity and make the filaments moist and improve the pollination rate. It is necessary to seize artificial flowering for artificial pollination to increase the seed setting rate. The winter corn borers, aphids, and rodent pests are serious and must be carefully controlled.
Enhanced Freeze-free Disposable Starch Noodle Machine
Noodle Making Machine,Enhanced Noodle Machine,Noodle Machine,Automatic Noodle Making Machine
Shuangfeng County Dingyuan Machinery Manufacturing Co. Ltd.. , http://www.separators.pl