The National Agricultural Technology Center organized the national soybean production technology conference in July
By: Date: 2022-07-29 Categories: foodtechnology Tags: ,
On July 26, the National Agricultural Technology Center organized a national soybean production technology conference online to exchange the current growth of soybean seedlings, analyze favorable and unfavorable factors, and put forward the key points of field management in the next step. More than 20 experts from the soybean expert group of the national soybean oil production capacity improvement project and technical backbones of provincial agricultural technology promotion departments in major soybean producing provinces and regions attended the meeting.
The meeting pointed out that at present, the ridges of soybeans in the Northeast production area have been closed, and the flowering period is approaching the end, entering the stage of podding and threshing. The second and third temperate zone soybeans in Heilongjiang Province have 10-14 compound leaves, and the plant height is 65-100cm; The fourth temperate zone soybean has 10-13 compound leaves, with an average plant height of 70-90cm; The fifth and sixth plot temperate soybeans have 9-11 compound leaves, and the plant height is about 70-85cm. Most Summer Soybeans in the Huang Huai marine production area are in the period from branching to early flowering. Affected by the drought in the sowing period, the growth process is slightly delayed compared with the perennial, with an average number of compound leaves of 6 and a plant height of about 26cm. Spring sown soybeans are harvested in succession in the southern region, while summer sown soybeans are in the pod setting and grain filling stage.
According to the discussion and analysis, the meteorological conditions in July are generally favorable for soybean growth. The temperature in Heilongjiang is suitable, the precipitation is slightly less, and the sunshine is sufficient. The meteorological conditions are suitable for soybean growth. Inner Mongolia has abundant rainfall, suitable soil moisture, and soybean growth is better than that of last year. Anhui, Henan, Shandong and other places have sufficient rainfall, and the conditions such as temperature and light are generally good. However, excessive rainfall in some areas causes waterlogging damage. The main production areas in the East and middle of Jilin Province are affected by long-term rainfall, low temperature and scant sunshine. Some fields have serious water accumulation, and the growth of soybeans is not as good as that of the whole year. Some plots have been destroyed and replanted. Some plots in Hebei and Shandong are affected by early rainfall, and soybeans are replanted at least once. Due to the narrow spacing between soybean and corn belts, unreasonable selection of corn varieties and large amount of fertilizer applied to soybeans, some soybean and corn belt composite planting plots have led to the flourishing growth of soybeans and heavy grass damage.
The meeting proposed that the field management of soybeans in the middle and late stages should be coordinated according to the current growth of soybean seedlings and the meteorological conditions in August. First, promote the weak and control the prosperous. Spray leaf fertilizers such as potassium dihydrogen phosphate according to local conditions, accelerate the growth process, promote safe maturity, and control the prosperous field in time. The second is to prevent and control diseases and pests. The northeast and northwest regions should strengthen the prevention and control of soybean borers, aphids, red spiders, Sclerotinia, downy mildew, etc., which can be operated at the same time with the spraying of leaf fertilizer and plant growth regulators (micro fertilizer, etc.), so as to realize”one spraying and multiple prevention”. In the Huang Huai Hai region, we should focus on the prevention and control of root rot, downy mildew, whitefly, red spider, aphid, especially the control of stinging insects such as bee bug, to prevent the occurrence of”disease green”. Third, disaster prevention and mitigation. Pay close attention to abnormal weather, formulate technical plans for disaster prevention and mitigation in advance, actively respond to floods, droughts, hail and other hazards, and effectively reduce the impact of disasters on soybean production.