At this critical time in the spring production of vegetables in my province, and in order to achieve disease control and production in the spring, the academy of agricultural sciences of the province of jilin offers the following guiding recommendations for the agricultural authorities and the farmers in general, in the light of the climate features of the spring of 2022 and the results of many years of technological innovation。
I. Climatic projections
According to forecasts from the jilin department of meteorology, the overall climate trend for this spring (march-may) is expected to be slightly higher and more volatile, with slightly smaller precipitation and uneven spatial and temporal distribution. The average temperature for the period was slightly higher across the province than in the past year, slightly lower than last year, with marked fluctuations in temperature fluctuations and a period of moderate temperatures. The province-wide average rainfall is expected to be slightly lower in the spring than in the past year. In march, the province-wide average rainfall was slightly lower than it was in the past. The average rainfall for the province as a whole in april-may is slightly lower than it is on a permanent basis, and there will be marked periods of less rainfall in the centre-west, with the potential for a phased drought。
Specific measures
1. Spring-wide
In the case of the old fields, which did not have a clean garden in the autumn, it was necessary to remove the dead leaves from the ground in a timely manner and the whole field was sprayed with sodium nin for ground disinfection. The soil needs to be checked for water scarcity in a timely manner, and if the soil is dryer, it needs to be watered in a timely manner in order to prevent the sprouts from drying. When the park is cleared, 10 centimeters high. When the plough is stabilized at a temperature of 20 cm greater than 15 °c, it must be collected in a timely manner。
2 hotbeds
New growers wishing to grow green beryllium should choose low-temperature green beryllium varieties and purchase seeds from formal sources. Seeds can be bought in greenhouses, and fields can be established after 70-80 days. The skin is thicker, and the seed is impregnated 48-72 hours with 30°c warm water before seeding, followed by seeding, which can be sowed when 10% of the seed is white. The method is approximately the same as for crops such as eggplants and tomatoes, with the difference that cerium seedlings generally use 10 cm x 10 cm nutrition. When the seedlings smoke the second and the third, they go after each other to grow a strong seed。
3 - pre-plant floor
It is better to choose the border soil or the sandy soil, which is rich in soil and low in groundwater, and which is both fat and watery. In mid-may, the 10 cm temperature level of the tillage could be established at 10°c. The platinum is a deep-rooted crop, and it is glamorous. Therefore, pre-plantation requires the application of decomposed organic fats of 8-10 tons/acre, a compound of 50 kg, then a deep 40-45 centimetres, twice-twirling, and the opening of a ditch about 30 centimetres deep. If it is difficult to purchase decomposed organic fertilizer, it can also be replaced by 300-500 pounds of soybeans per acre applied to cake fat or crushed。
4. Plantation methods
The shed is 1. 5 metres away and 25 centimetres away; the open field is 1. 3-1. 5 metres away and 18-20 centimetres away, and the large-scale mechanized plant is 1. 8 metres away and 18-30 centimetres away. For the region's field beryllium cultivation, ensuring depth is of great importance for safe winter and future high production of the beryllium. The sprouts of sprouts are 13-15 cm below ground level in order to ensure that winter sprouts are not frozen to death or dried from the wind in spring. The soil should not be too deep at the time of planting, depending on the original nutrient-rich green seed interface. In the future, as green seedlings grow, they must be planted with sufficient water on the day, preferably with drip irrigation。
Iii. Post-plant management
The seedlings should be replanted in a timely manner, using seedlings of the same batch; the seedlings should be solitude and drought-resilient that they should be watered in a timely manner in accordance with weather conditions. Pest control: insect seedlings that have been planted must be regularly observed in the field and detected in a timely manner, due to their small size and low resistance to pests. Grassland prevention and control: soil treatment can be done with pre-plant closed herbicide herbicide before weeds come out. A small tiller can be used to plough between two rows of beryllium every half month during the booming weed season, so that weed can be weededed and the soil can be pine。
Jilin agricultural academy of sciences
5 april 2022
