The radish grown in China is an ancient vegetable of Chinese origin and has been widely grown since ancient times. It is more concentrated in northern China and generally accounts for more than 20% of the area of ​​autumn vegetables. Radishes, carrots, and turnips are all root vegetables. They are all served with a fleshy, fleshy root. It is a popular vegetable for urban and rural people in China.
1. Need fertilizer characteristics
The objective of the technology of fertilizing off-season cultivation of radish in protected areas is to promote the coordinated growth of the underground and aboveground parts in order to obtain a large and delicious fleshy root. According to the production test, for every 1,000 kilograms of radish produced, it is necessary to absorb from the soil N2.1-3.1 kg, P2O50.8-1.9 kg, and K2O 3.8-5.6 kg. The ratio of the three is 1:0.2:1.8. Visible radish is hi potassium vegetables, not too much nitrogen fertilizer. In addition, radish is more sensitive to boron, in the early and the flourishing period of fleshy root enlargement, foliar application of boron fertilizer can effectively improve the quality of radish.
The absorption of nitrogen, phosphorus, and potassium in radish varies greatly during different growth stages, and the amount of nitrogen uptake and the absorption of phosphorus and potassium are generally low during the seedling stage. The absorption of potassium by the plant is significantly increased in the early stage of root enlargement. Followed by nitrogen and phosphorus; to the peak period of root exudation is the peak period of nutrient absorption. During this period, nitrogen absorbed accounted for 77.3% of the total amount of nitrogen absorbed during the whole growth period, and the amount of phosphorus absorbed accounted for 82.9% of the total phosphorus uptake. This accounted for 76.6% of the total potassium intake. Therefore, ensuring that adequate nutrition during this period is the key to the yield of radish.
2. Fertilization technology
(1) Base fertilizer. The radish roots are well developed and the basal fertilizer needs to be applied. Before sowing, combined with deep turning, 40 tons of organic fertilizer is applied per hectare, 500 kg of plant ash and 30 kg of superphosphate are promoted. Organic fertilizer and inorganic fertilizer are used in combination to promote fertilizer application. It is easy to produce bitterness.
(2) Dressing. The radish fertilization is mainly based on basal fertilizer, supplemented by topdressing. Shorter growth periods can be used to reduce topdressing, while long growth periods are to be top-dressed, but top dressing should be centered on the enlargement of fleshy roots. In top-dressing, grasping the right time, staging and weight dressing is the key to obtaining high quality and high yield. In the top dressing, we should grasp the principles of light weight, heavy weight, and light weight.
In general, the first topdressing is carried out at the seedling stage. When there are two true leaves in the seedlings, a small amount of chemical fertilizer is topdressed with 250 kg of urea per hectare. The second top-dressing was carried out during the period of breaking the belly. Topdressing nitrogen fertilizers was also followed by topdressing phosphorus and potash fertilizers, each at 50 kg/ha. Small and medium-sized radishes basically meet the needs of future growth after being chased twice, except that the top-dressing period of fleshy roots is suitable for top dressing. Large-sized radish should be topdressed with nitrogen fertilizer, 150 kg of urea per hectare and 150 kg of hectares of wood per hectare.
Fried Food is one of the traditional foods in our country, whether it is fried rice, fried spring rolls, croquettes, or fried dough sticks, oil cakes, noodles, and French fries in children's favorite snacks. Fried bread, fried chicken wings, and fried potato chips and fried biscuits in snacks are all fried foods.
Deep-fried foods are popular among many adults and children because of their crispy taste, aroma, and appetite. However, frequent consumption of fried foods is extremely detrimental to health.
Fried Food
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