Growing garlic is mainly organic fertilizer, with a small amount of chemical fertilizer; to the base fertilizer, supplemented by fertilizer.
A, garlic base fertilizer:
Garlic base fertilizer is mainly organic fertilizer. Common organic fertilizers are circle fertilizer, chicken manure, duck manure, stable manure, compost, cake fertilizer and so on. Whether or not the amount of base fertilizer is sufficient, directly related to the commerciality of garlic garlic and the plant's overwintering performance, so in the production should be sufficient base fertilizer.
The amount of basal fertilizer applied should be determined based on the target yield of garlic and the fertilizer requirement per unit area of production and other factors. Conditions can be applied to cottonseed cake and other cake fertilizer 50-100 kg. With organic fertilizer as base fertilizer applied fertilizer usually have calcium superphosphate, nitrogen-phosphorus compound fertilizer, nitrogen-potassium compound fertilizer or ternary compound fertilizer, etc..
Apply about 75 kg of standard nitrogen fertilizer per 667 square meters. Nitrogen fertilizer should have 2/3 for base fertilizer application, 1/3 for follow-up fertilizer application. Phosphorus and potash fertilizers are mostly applied as base fertilizers. Phosphorus fertilizer using about 30 kg of calcium superphosphate. Phosphorus fertilizer for base fertilizer application, either calcium superphosphate, or calcium magnesium phosphate, should be mixed with organic fertilizers, shallow plowing into the tillage layer. The quantity of potash fertilizer applied, generally about 30 kg of potassium sulfate per 667 square meters.
The application of base fertilizer is generally half of the organic fertilizer is applied before plowing, evenly spread on the soil surface, combined with plowing, turning the fertilizer into the ground; the other half in the sowing, focus on furrowing, and make the fertilizer, the soil is mixed, and then sowing. Such as ammonium bicarbonate or organic fertilizer as a base fertilizer, to open the furrow buried, or with water, after application combined with tilling the ground to make the fertilizer and soil mixed evenly.
Phosphorus fertilizer application is shallow, concentrated or layered. One has a part that can be applied before plowing, the other part is applied when planting garlic after plowing, or shallowly applied in the ground 6-10 cm after land preparation, in order to facilitate the use of seedling absorption, cultivate strong seedlings, and improve the utilization rate of phosphorus fertilizer in the season. Potassium fertilizer can be used when plowing, with plowing with sprinkling, turned into the ground can be.
Second, fertilization points:
Late September, every 667 square meters of high-quality farmyard manure (fully rotted stable manure, compost, cake fertilizer) 5000kg, urea 20kg, potassium sulfate 10kg, required to sprinkle evenly, and then deep tilling plowing.
In early April of the second year, combined with the watering of seedlings, every 667 square meters of quick-acting fertilizer urea 10kg.
In mid-April, every 667 square meters of 0.5kg of potassium dihydrogen phosphate dissolved in 50kg of water spraying.
Expanded Information:
Garlic Cultivation
1, timely sowing
Garlic sowing is the optimal period of time to make the plant in the overwintering of the plant to grow to 5 to 6 leaves, at this time, the plant is the most resistant to the strongest cold, in the cold winter is not frozen to death. And for the plant successfully through the spring to lay a good foundation. The Yangtze River Basin and its southern region, generally in September in the middle and late sowing. The Yangtze River basin in September cool weather, suitable for garlic seedlings out of the ground and growth.
If the seeding is too early, the seedling grows too much and consumes nutrients before overwintering, it reduces the overwintering ability, and it may also be re-sprouted, causing secondary growth, the second year of the formation of compound cloves of garlic, reducing the quality of garlic. Sowing too late, the seedling is small, tissue tender, root system is weak, less accumulation of nutrients, lower cold resistance, more death during the winter. So garlic must strictly grasp the sowing period.
2, reasonable dense planting
Dense planting is the basis for increased production. The yield of garlic shoots and garlic is composed of the number of plants per mu, the number of cloves per plant and the weight of shoots and cloves. According to the characteristics of the varieties should be properly planted, so that there are more plants per acre. Early-maturing varieties are generally shorter plants, fewer leaves, the growing period is also shorter, the density should be correspondingly large,
Mu planted 50,000 or so good, row spacing of 14 to 17 cm, spacing of 7 to 8 cm, mu with 150 to 200 kg of seed. Late-maturing varieties with a long reproductive period, tall plants, the number of leaves is also more, the density is correspondingly small, in order to make the group structure is reasonable, in order to fully utilize the light energy. Density should be mastered in mu planted 40,000 plants up and down, row spacing 16 ~ 18 cm, plant spacing 10 cm or so, mu with about 150 kg of seed.
3, sowing method
Garlic seed selection and seed clove treatment: choose the detoxification varieties, select the garlic cloves without pests and diseases for seed garlic. Before sowing, wash the seed cloves with water, and then use 77% tannin wettable powder to mix the seed, every 100 kg of seed cloves with 150 grams of powder to 8 kg of water to mix the seed, or use 3000 times 96% of the Tenda malignant fungi to soak the seed for 20 minutes, after the cool sowing.
"Deep planting onion shallow planting garlic" is the experience of farmers for many years of practice. Garlic sowing is generally suitable depth of 3 to 4 centimeters. There are two methods of sowing garlic: one is to insert seeds, that is, the seed cloves inserted into the soil, after sowing mulch, stamping; the second is to open the groove sowing, that is, with a hoe to open a shallow groove, will be the seed cloves sowing in the soil.
After opening a ditch, at the same time open the soil covered in the previous line of seed petals. After sowing the mulch thickness of about 2 cm, tread lightly with the foot, water thoroughly. To prevent drought, the soil can be covered with two layers of straw or other moisturizing materials.
Planting should not be too deep, too deep is late, the pseudostem is too long, the root system to absorb water and fertilizer, growth is too strong, garlic formation by the soil squeeze difficult to expand; but planting should not be too shallow, too shallow is easy to seedling "jumping petals", seedlings are easy to inter-root water shortages, poor root development, easy to freeze and die in the winter.
Baidu Encyclopedia - Autumn Sowing Garlic Cultivation