Autumn and winter spinach planting technology
Now is the time to plant autumn vegetables, but which kind of vegetables should be grown in a wide variety? Hui Nong.com Xiaobian today introduces you to the next autumn spinach and talks about the autumn and winter spinach planting techniques.
The cold and short sunshine conditions in autumn and winter are very suitable for the growth of spinach. Spinach has good cold tolerance and can be safely used even in cold winter. September and October are the largest areas for spinach planting. The “fast green†and “fast-growing big leaf†spinach are sown in early September, harvested in one month, and the leaves are large and round, the color is good, and it is very popular in the market. . You can also use the idle greenhouse to plant wintering spinach, which can be listed on the New Year's Day to the Spring Festival. The management is simple and the benefits are good, and it does not affect the main vegetable production in the early spring.
1. Field preparation
In autumn and winter, spinach is planted with sorghum as the main, easy to water. After the harvest of the former sorghum crop, 20-25kg of compound fertilizer is applied to the whole crop, and the whole ploughing is 30cm deep, so that the soil and fertilizer are evenly mixed, and the flat raft is made 1m wide, which is convenient for watering.
2, variety selection
With the promotion of hybrid spinach, the conventional spinach varieties were gradually replaced by hybrid spinach varieties. Hybrid spinach is superior to conventional varieties in terms of yield, disease resistance and commerciality, and the price of vegetables is 2-3 times that of common varieties. Therefore, at present, professional growers basically use hybrid spinach seeds.
3, timely fine sowing
Early autumn spinach in Henan and surrounding provinces can be sown from the beginning of the autumn, harvested 35-40 days after sowing, and continued to be planted after harvest to 2-3 å‰ before the Spring Festival. The wintering spinach seedlings have 5-6 true leaves, and the main roots are about 10cm long and can be safely wintered.
Therefore, the optimum sowing date for wintering spinach in the open field is around mid-October. Protected winter winter spinach can be postponed until the beginning of November, and will be listed in March next year.
Many vegetable farmers in the Central Plains have the habit of “burying their head†spinach in the middle of November. They will be listed in the second year of March and April, and will not delay the planting of early spring exposed watermelon. The “buried head†spinach is still strong in cold resistance after being sucked up by spinach seeds, and it can be germinated after the soil is thawed in the early spring of the second year, and the planting method is planted before the soil freezes. .
The sowing method is recommended to use the spinach special fine seeding sowing, which can obviously save the seeds, or ditch the fine sowing (sandcasting): use the opener to open the ditch 15-17cm, then evenly sow the seeds into the ditch, and cover the soil, if If the bottom is not good, you can immediately pour a small amount of water.
4. Field management
Watering should be done in time after emergence, and 2 pieces of true leaves should not be dehydrated; after 3-4 pieces of true leaves, watering should be properly controlled, roots should be deepened to facilitate wintering, and the soil should be frozen before freezing. When the bottom fertilizer is applied, the seedling stage is basically not deficient in fertilizer, and the spraying of "Yiyi potassium dihydrogen phosphate" 300 times liquid on the leaf surface can improve the cold resistance. After the wintering spinach returns to green, it enters the rapid growth period. In order to ensure the quality and yield of spinach, combined with pouring back the Qingshui mu to chase urea 20kg, before the harvest can be used without top dressing, with soil pressure strict, let the spinach overwinter under the film, the output is higher, sell better.
5, timely harvest
The harvest period of spinach is not very strict, and it can be harvested as long as 20cm. It can be marketed about 40 days after sowing in the first ten months of August-October; 70-80 days of sowing in the middle and late October; the wintering spinach can be harvested about 25-30 days after returning to green.
The above is the autumn and winter spinach planting technology that Hui Nong.com has compiled for you. I hope to help you grow autumn and winter spinach.
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