When does the winter jujube mature?
Winter jujube is very hardy. It grows under normal conditions and matures naturally from October to November. If you usually give it sufficient light, provide adequate water and nutrients, and take good care of winter jujube, it will generally be precocious around June to September. Fresh and ripe winter dates are not available on the market until July to November.
1. The reason why winter jujube is called "winter jujube" is that it matures naturally from October to November every year, and the north enters winter relatively early.
2. Generally, winter jujube can be picked in batches from the first ten days of October, and the picking time is after the dew is dry in the early morning, which is more beneficial to preservation. In addition, the maturity of picking has a great influence on the storage life, the lower the maturity of winter jujube is, the more resistant it is to storage, and the initial red fruit (coloring less than 25%) is the most durable. Therefore, if picking fresh food is carried out in the semi-red, if the processing can choose to pick in the early red.
The value of winter jujube
Winter jujube not only has the advantages of crisp skin, delicious taste and delicate meat, but also rich in vitamin C in its pulp. Winter jujube contains 70 times as much vitamin C as apple, and even Hawthorn is no match for it. In addition, winter jujube also contains 19 kinds of amino acids needed by the human body, such as protein, dietary fiber, vitamin a, trace elements and so on.
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Crop planting technology
The general planting of crops includes land selection and preparation, fertilization, sowing, field management, harvest and so on. Field management is one of the most critical aspects, including ploughing and loosening soil, weeding, fertilization, watering, disease prevention and so on. Take buckwheat as an example to introduce farmers.
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Where is the origin of kelp?
Kelp is naturally distributed along the northern coast of Korea, northern Honshu, Hokkaido and the southern coast of the former Soviet Union, but Aomori and Iwate prefectures are the most distributed in Hokkaido, Japan. In addition, there is also a distribution along the coast of Wonsan, Korea. Kelp was not originally produced in China.
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