Onion seed price and planting method

Onion, also known as ball onion, onion, jade onion, etc., is a biennial herb of Liliaceae, originated in Central Asia or West Asia, there are many different varieties, widely distributed in China, and cultivated in all parts of the country. The producing areas are mainly Fujian, Shandong, Gansu, Inner Mongolia, * * and other places. Let's take a look at the seed price and planting methods of onions.

How much is the onion seed per jin?

The price of onion seeds is about 80,120 yuan per jin, but it varies according to the quality, variety, producing area and market of the seeds. There are many varieties of onion, and different globules are related to the early and late maturity. generally, the flatter the sphere is, the earlier the maturity is, and the yield varies greatly among different varieties. the yield of flat varieties with early maturity is about 45005500 kg per mu, and that of middle and late maturing varieties is 50005500kg per mu, and the economic benefit of planting is between 3000000kg and 6000 yuan per mu.

What kinds of onions do you have?

1. Red skin: onion appearance purplish red, fleshy fleshy, oblate or spherical, resistant to storage and transportation, short dormancy period, early sprouting, early to middle maturity, harvested from late May to early June, representative varieties include Shanghai Red skin and so on.

2. Yellow skin: onion brass to light yellow, scales yellowish and soft, flat round, more resistant to storage, transportation, early to middle maturity, lower yield than red bark, but better quality, representative varieties are Lianyungang 84-1, DK yellow, OP yellow, Dabao, Laixuan 13 and so on.

3. White skin: onion white, scale white, flat spherical, some are high round and spindle-shaped, good quality, but the yield is low, disease resistance is weak, early autumn sowing in the Yangtze River basin is easy to early bolting, representative varieties are Hami white skin and so on.

Planting conditions of onion

1. Temperature: onion has strong adaptability to temperature. Seeds and bulbs can germinate slowly under 3-5 ℃. The optimum temperature for seedling growth is 12-20 ℃, 18-20 ℃ for leaves and 20-26 ℃ for bulbs. Healthy seedlings can tolerate the low temperature of-6-7 ℃.

2. Illumination: onion is a long-day crop, the bulb expansion period and bolting and flowering period need more than 14 hours of long sunshine, under the condition of high temperature and short day, only long leaves can not form onion, and the suitable light intensity is 20 ~ 40 thousand lux.

3. Moisture: onions should be provided with sufficient water during germination, seedling growth and bulb expansion, but water should be controlled at seedling stage and before overwintering to prevent seedlings from overgrowing and freezing injury, and irrigation should be controlled 12 weeks before harvest.

4. Soil: onion has strong adaptability to soil, and neutral loam with loose fertility and good aeration is suitable. Sandy loam is easy to obtain high yield, but clay loam bulb is full, color is good, storage resistance is strong, and the ability of root system to absorb fertilizer is weak. High yield needs adequate nutritional conditions.

Sowing method of onion

The main results are as follows: 1. Sowing time: the selection of suitable sowing time is the key to cultivate strong seedlings, such as large seedlings too early, easy bolting after overwintering, weak late sowing seedlings, poor cold resistance, small phosphorus stems and low yield. Taking the Huang-Huai River Basin as an example, the best sowing date is the first and middle of September.

2. Sowing quantity: under normal circumstances, the sowing amount of onion in the seedling bed is 40.5 kg per mu. In consideration of eliminating and thinning 20% of the weak and inferior seedlings, the cultivation area should be 15 times that of the seeding bed, and the sowing rate should be increased if the germination rate is less than 70%.

3. Fertilizing the border: the height of the onion planting border is 1.4 to 1.5 meters, and the width of the border is 27 centimeters. After leveling the border, 15 kilograms of phosphorus and calcium per mu, 4 cubic meters of mature organic soil fertilizer per mu as base fertilizer, and 10 kilograms of urea per mu after emergence combined with watering.

4. Sowing method: after the onion planting border is flattened, it is watered first, and then sowed evenly. Then cover 0.8 cm of nutritious soil to ensure that all seedlings are sown. If the soil moisture can not meet the requirements of seedling emergence after sowing, spray water can be used to promote seedling emergence, or it can be sowed after sprouting.

5. Seedling emergence management: onions should pay attention to the prevention and control of mildew and blight after emergence. The method is to spray 30kg of water evenly with 50% carbendazim or 40% chlorothalonil 150 grams per mu.

The planting method of onion

1, timely watering: onion planting 20 days after entering the slow seedling stage, at this time can not be a large number of watering, but can not lack of water, so watering times should be more, but each watering quantity should be less, the principle is not to wilt the seedlings, not to make the ground dry, to promote the rapid rooting of seedlings.

2. Rational fertilization: onions should be fertilized and watered at the peak period of leaf growth and bulb expansion, and 15 kg of diammonium phosphate, 20 kg of diammonium phosphate and 3-5 kg of potassium sulfate should be applied per mu respectively, but do not overweight nitrogen fertilizer.

3. Middle ploughing and loosening soil: ploughing and loosening the soil for 3 times in the onion seedling stage, combined with each watering, 2 or 3 times in the stem and leaf growth period, and stopping the middle tillage after the plant is closed, the middle tillage depth is about 3 cm, the planting plant should be shallow, and the place away from the plant should be deep.

4. Cutting off the flower bolt: the onion is cut off from the lower part of the flower bud before the bulb is formed, which prevents flowering from consuming nutrients, promotes the growth of lateral buds and forms a more substantial bulb. at the same time, timely spraying Di Guo Zhuang Tieling is helpful to increase the yield.

5. Picking time: onion harvest is generally from the end of May to early June, when the leaves gradually turn yellow from bottom to top, the pseudostem becomes soft and begins to invert, the bulb stops expanding, the outer skin is leathery, and enters the dormant stage, which indicates that the bulb has matured and should be harvested in time.

6. Drying after harvest: the onions should be dried in time after harvest, and the plants should be arranged diagonally, so that the stems and leaves of the back row are just covered on the onions in the front row, so as to prevent the onions from being directly exposed to the sun and turn once every 2-3 days. until the leaves turn yellow.