High-quality farming techniques for shallow analysis of platinum
Summary: introduction of high-yielding and high-quality planting techniques in the selection of varieties, breeding, planting, post-planting management, harvesting, etc., with a view to providing technical guidance for the efficient cultivation of beryllium。
Keywords: tritium; high yield; quality; cultivation techniques
1 species selection
The choice of varieties is apollo。
2 seedlings
Owing to the thick and hard skin of the apricot seeds, the moisture is difficult to permeate, and it is generally necessary to soak 4-5d with 25-30°c warm water before seeding. The sprout temperature is controlled at 25-30°c. The methods used in the production of seedlings are luminous seedlings, small arch nurseries and field seedlings. In shandong province, the planting season of the ceremonial field took place between mid-march and the beginning of september, and the period of 70 to 100 d was suitable, and the timing should be determined on the basis of the planting stop。
2. 1 establishment of seedbeds
First, a long, wide sapling is built, deep, dredged, and then fertilized at 100 kg for every 10 m2 application, and 1. 5 kg for three centimetres of compound fertilized, flatted and full of water, which can be sowed on the ground until the surface is white。
2. 2 scrolling
Seeds are immersed 5d with hot water of 25-30°c and replaced with water one and two times a day, allowing the seeds to fully suck water. The seed depth is 3 cm, and the seeding takes place on the basis of a re-opening of a ditch on the basis of a tumbled field, which is soaked by single grains. The seed density is 15-20 cm, 5 cm, 2-3 cm, 2nd day low-strike suppression, so that the seeds are connected to the soil, so that the water is pumped and protected. In order to prevent subterranean pests, bait can be used in the sown ditch。
2. 3 management after seeding
The seeding of americium usually takes place at 10-15 d, during which time water should be watered in the event of indignities; if the temperature is insufficient, be careful not to pour water in order to prevent the deterioration of the temperature from affecting the seedlings, then the spray will be wet. The seedlings are 10 cm tall and can be watered once. After the seedlings, weeds grow to the ground and must be uprooted to prevent competition for sunlight, moisture and nutrition. Preplant 10-15d should control the water seedlings, which should be seed-free to increase the rate of transfer to life。
It's three
3. 1 selection of land for planting
Apart from the deepness of the soil, laxity, fertility, permeability and permeability, low groundwater levels and irrigation and drainage conditions, the plots of platinum-planted land should also be careful not to choose old orchards and sanctuaries, which can easily infect the plume。
3. 2 timing
The spring usually takes place before the seedlings start to move, using the seedlings of the first year, june-july; the seedlings of march-april of the year are available for the summer; and the seedlings of 15 september are available for planting in the autumn without protection, at the latest。
3. 3 isolation
Green beryllium cultivation, which does not require soil, can be increased in density by 3. 75 to 4. 5 million/hm2, i. E., 20 to 25 cm, if the line distance is determined at 1 m。
3. 4 plantation methods
The soil is soaked and fertile that before planting, the soil is to be ploughed once, dredged and flattened, a ditch is torn at a distance of 1 m, a ditch is torn at 30 cm and 40 cm wide, a ditch is to be filled back to 15 cm, and is to be fed 30 ~ 45 t/hm2, a three-dollar compound of fertilized weight (n=p=k is 15 = 15. 15) 600 kg/hm2 is to be applied in the ditch, the applied fertilizer is to be modulated with 15 cm in the ditch, then the soil is to be filled back one more time, the ditch is to be about 7 cm deep, and water is to be sunk. In the middle of the ditch, a shallow ditch is opened, where the seedlings are planted at the planned distance, where the total depth of the seedlings should be below 10-15 cm below the surface, where the roots are stretched and when planted, water is poured. The summer plant needs to pay special attention to drainage and flood prevention。
4 post-plant management
4. 1 management for year 1
4. 1. 1 plantation. This period of plant cultivation aims at promoting the growth of the plant and its roots as central to their rapid horticulture. Americium is found to have small roots, with poor absorptive capacity and weak resilience, and if it is slow to grow in the event of drought, and if it lacks oxygen in the run-off soil, it affects the breathing of the roots, decomposition, poor growth and even death. Therefore, when the soil is dry it must be watered in a timely manner and, in case of flooding, drained in a timely manner. The climate in the shandong region is characterized by spring and drought and summer floods. For this reason, the prevention of drought is predominant in the spring and the prevention of flooding in the summer. Weeds should also be completely removed and the incidence of stasis and lignosis should be controlled as much as possible。
4. 1. 2 fertilisation. It is generally not necessary to pursue quick-effect fertilizers after the summer planting; it is established in autumn, which can be applied to a certain amount of fertilizers within the established ditch, in combination with the field; and it is scheduled for spring, which is to be followed one more time in mid-july at 450 kg/hm2 for urea and 150 kg/hm2 for potassium chloride. Fertilizers should be watered at any time after application, and it would be preferable to follow fat before the rain。
4. 2 garden management
The spring production of thorium originates from the storage nutrients of the previous root system, the accumulation of which is determined by the abundance of the leaves and the length of the assimilation period on the ground in the first autumn. Therefore, management measures for gardening should facilitate the accumulation of roots nutrients。
4. 2. 1 control of extraction. Each spring, after harvest, the stock of nutrients in the plant is constantly depleted, causing many of the meat roots to shrink and decay as a result of the depletion of the stock of nutrients, and some of the old meat is essentially metabolismed, and the sprouts on the plant are thin because the stock of nutrients is inadequate. Thus, each year, when the aluminum is fine and production is 25 per cent of the productive period, harvests must stop and be converted to the cultivation of plants so that they can rebuild their roots。
4. 2. 2 ground tubing control. The premature formation of a burgeoning leaf group, with poor ventilation in the field, is not only susceptible to disease, but also to premature plant failure, which affects the accumulation of nutrients, thus affecting production, and the accumulation of nutrients, which can be affected by the late formation of the leaves and the freezing of the leaves during the assimilation period, which can result in the freezing of nutrients。
4. 2. 3 tillage and soil improvement. The growth of the platinum root system is highly dependent on a defusing soil environment, which should be combined with the pursuit of fat and weeding in one year. As a result of the damage to the platinum, it would be preferable to use a plumbing, which takes place in spring and is 15 cm deep. In particular, many years after its planting, the soil becomes hard and lacks nutrients. Fertilizers should therefore be applied every 2 to 3 years in an inter-walk ditch, at a depth of 30 cm and 30 to 40 cm wide, in the ditches, in a circle of 37. 5 to 45. 0t/hm2, lime powder 7. 5t/hm2 in order to improve the physicogenic properties of deep soils and promote root growth。
4. 2. 4 irrigation and drainage. The platinum is a drought-resistant, water-restricted, flood-prone crop. Some of the pelican fields are often affected by the concentration of rainfall during the growing season, which makes it difficult to excrete water and destroy gardens. However, the lack of adequate water supply inhibits the growth of sprawl, reduces the production of plumes, and should be met during the harvest period. In the pre-growth period, it is possible to control the growth of the leaves by controlling the moisture, while in the autumn it is possible to promote the formation of the leaves。
4. 2. 5 plant adjustment. In order to avoid excessive fertility and the premature formation of large groups, it is necessary to control the formation of pre-dwellers. The first is not to let them grow naturally after the spring has stopped harvesting, but to leave a certain amount of the penis behind, depending on the age. In general, the number of females per plant is 3-5 and the diameter is 6-8 mm. Two is the cock. Penetration not only prevents side branches but also controls the growth of leaves, improves ventilation in the field and prevents the spread of diseases. Overstretching, too small leaves, and inadequate assimilated nutrients affect root system development. It's like 120 cm。
4. 2. 6 whole branch. The summer is hot and rainy, and the controlled mother can send new twigs that not only consume nutrients but are also highly susceptible to disease. Therefore, it must be removed。
4. 2. 7 extermination. It's easy for a female to have a penis by july
