How to grow a single head of garlic
1, the whole ground to do bed. Choose sandy loam or light loam, avoid continuous cropping. After the harvest of the previous crop, 250 kg of rotted manure per mu, 50 kg of calcium superphosphate as a base fertilizer. After shallow plowing and harrowing, make a flat bed about 1.4 meters wide.
2, seed garlic selection. Before engaging in the production of one-head garlic, varieties should be compared to the test, screened out suitable for local planting, a high rate of one-head, a single head of larger varieties. It is understood that the two water early, Wenjiang red seven-star garlic and other early-maturing garlic varieties with a high rate of single head, up to 76 ~ 92%. Generally, the weight of a single head of garlic is required to reach 5~8 grams. In order to produce a high rate of single head and the appropriate size of the single head of garlic, need to carry out the test of the relationship between the size of the seed cloves and the rate of the single head and the weight of a single head. Generally, garlic cloves weighing less than 0.5~1.5 grams are used as seed garlic.
3, sowing production. The appropriate sowing period of one-head garlic must be done locally to determine the staged sowing test. Sowed early, the nutritional growth of garlic seedlings long, more nutrient accumulation, easy to produce 2 ~ 3 garlic cloves of small head garlic; sowing late one head garlic is too small. Autumn sowing areas are generally more garlic cultivation delayed about 50 ~ 80 days sowing. The amount of seeds per mu is generally about 100 kilograms.
4, open the furrow. Sowing first according to the 15 cm row spacing furrow, furrow depth of about 6 ~ 8 cm, and then according to the plant spacing 3 ~ 4 cm seeding, then covered with 3 ~ 4 cm of soil. After the whole bed sowing, evenly spread the carrot seeds, the amount of seed per mu 0.5 kg or so, after sowing, rake the bed, irrigation. The purpose of mixing carrot seeds is to utilize the carrot germination fast seedling characteristics, inhibit the growth of garlic seedlings, in order to increase the rate of one head.
5, field management. After the carrot seedlings divided into period seedlings, maintain a distance of 6 ~ 8 centimeters. The following spring will be harvested after all the carrots on the market, garlic field for plowing, weeding, fertilizer, irrigation and other management. During the expansion of the garlic head to ensure an adequate supply of water.
6, timely harvest. Autumn sowing areas in the following year before and after summer when the pseudostem becomes soft, the lower leaves are mostly dry and harvested in a timely manner. Generally 300~500 kilograms per mu. After harvesting to dry in the sun for 2~3 days, to prevent mold.
Does one-head garlic have GMOs
The reason for the formation of one-head garlic is not genetically modified
Garlic is usually planted in the fall and grows into a small garlic seedling in the winter. After the spring warmth, garlic seedlings grow quickly, when the sunshine gradually longer, around the garlic moss produced several young shoots. When the garlic moss starts to grow, the shoots expand rapidly and come together to form a single clove.
First, sowing too late is the main reason for the production of a single head of garlic, if planted in the spring when it is warmer, the garlic seedlings just grow out soon after the encounter with high temperatures and long sunshine. This condition is not conducive to the development of the young shoots of garlic cloves, many young shoots will degenerate, and only a single garlic clove, which formed a single garlic clove.
Second, garlic does not flower inflorescences but produces many aerial bulbs (that is, the top of the garlic shoots flowers grow up to form), with this aerial bulbs planted in the ground, so that the garlic is often a single clove.
Third, in addition, early maturing varieties, small garlic cloves, poor soil, poor fertilizer, drought, lack of water, serious grass, too high density, the number of leaves is too small, bulb buds need to differentiate the temperature and light conditions do not meet, etc. will lead to the production of a single head of garlic.
Fourth, due to the degeneration of germplasm, plant growth is weak, small leaf area, assimilation of nutrients accumulated less, the plant is not enough to differentiate flower buds caused by.
The prevention and treatment of one-headed garlic
1. Choose high-quality garlic as seed The proverb says, "good seed out of a good seedling, a good seedling yield high". So when planting garlic should first determine the purpose of production, such as planting to produce garlic for the main purpose should be selected garlic head, cloves obvious, garlic cloves fat white garlic for seed. Such as the production of garlic shoots should be selected for good garlic head, cloves of fat purple garlic for seed, and therefore the seed of garlic shall not be used indiscriminately.
2. Fertilizer planting garlic should not be selected heavy crop land, garlic land need to deep plowing and loosening of the soil, increase the application of organic fertilizers and phosphorus, potash. 667m2 should be applied 1500 ~ 2000kg of farmyard manure as a base fertilizer, increase the application of phosphorus fertilizers 30 ~ 50kg, potash 15 ~ 20kg.
3. Strictly sown The temperature of the bulb of the garlic bulb expansion for the 20 ~ 25 ℃, higher than 26 ℃ garlic Entered dormancy, sunshine hours below 13h new leaves can continue to differentiate, but can not form the lateral buds on the bulb plate, so garlic planting must be based on the place, according to the species of strict sowing period. Production farmers often say: "Mid-Autumn Festival is not at home, Dragon Boat Festival is not in the ground", spring garlic planting said "spring garlic is not out of nine, out of nine long only head". Clearly pointed out that the autumn garlic should be sown in the autumn equinox to cold dew, spring garlic should be 5cm deep in the soil began to freeze, not out of nine that is about mid-March before sowing.
4. Reasonable dense planting Reasonable dense planting is conducive to the overall and individual growth of garlic. Generally speaking, the density of white-skinned garlic is arranged in rows with a spacing of 16cm×10cm, and the total output is 25% higher than the control, with large garlic heads and fat cloves. The red-skinned garlic row spacing of 10cm × 8cm.
5. Strengthen the management of the entire growth cycle of garlic is divided into the germination period, seedling period, bulb differentiation, bulb expansion period, dormant period. Each growth period should be grasped, but the bulb expansion period is the focus of management, the need to strengthen the supply of fertilizer, 667m2 urea 10 ~ 15kg, every 3 ~ 5 days of watering, to keep the ground surface is not dry, this period can also be foliar spraying of 600 times potassium dihydrogen phosphate supplementation of phosphorus and potassium fertilizers. Autumn sowing garlic also need to do a good job of management in the fall, before the winter covered with firewood and other things, spring warming in a timely manner to open the mulch, watering good green water. Into the middle of March should be strengthened plowing, in order to conserve moisture to improve the ground temperature, while spraying 1000 times Rogaine to prevent ground maggots.