1, see the local market conditions
Planting fresh soy and corn for harvesting is not a goal. It is important to be efficient. “Things are rare and valuableâ€, and the market price is always inversely proportional to the market supply. Therefore, according to the market conditions, as far as possible staggered sowing time, extend the market supply period. In addition to the unified acquisition of plant enterprises and order agriculture, it is necessary to avoid large-scale and large-scale planting at the same time.
2. See the conditions of the growers' facilities
In general, the earlier the cultivation in early spring, the higher the income. However, the sowing time for promoting early cultivation depends on the condition of the insulation facilities. Planting in the greenhouse before mid-February is required. Small greenhouses can be cultivated from mid-February to early March. Plastic film can be used to cover cultivation from mid-March to the end of March.
3, see the local climate conditions
In general, soybean and spring corn can be sowed when the temperature is stable above 10°C. However, due to the germination of maize seeds intolerance to low temperatures, the earliest sowing date must begin when the temperature stabilizes at 12°C and the latest sowing date. It is also necessary to ensure that the temperature during the harvest period is above 18°C. The suitable sowing date for the city is late March. Early sowing should take insulation measures to prevent rotting buds, and at the same time not sowing too late, as far as possible to avoid the high temperature and dry weather during the maturation stage, resulting in high temperature mature, drum grain difficulties; summer and summer corn should pay attention Avoid high temperature and drought weather during flowering, otherwise it is easy to cause falling soybeans and corn empty stalks. In late autumn cultivation, we should pay attention to the appropriate postponement of the sowing period. In the absence of late insulation measures, sowing is too late and susceptible to the impact of low temperatures in autumn. Grouting is difficult and can not even be harvested.
4, to do a good mix of varieties
According to different planting methods and planting season, different varieties can be used to achieve high yield and high efficiency. Soybeans are short-day crops and are sensitive to the length of sunshine. Spring soybeans, summer soybeans and autumn soybeans all have their own requirements for the length of sunshine. Therefore, all types of soybeans should not be confused, especially autumn soybeans should not be used for spring soybean cultivation. Soybean sowing in spring should also use different varieties according to different cultivation measures. If greenhouses, small sheds, etc. are used for promoting early cultivation, varieties with a growth period of no more than 75 days and good cold tolerance, such as Tongdou 9701, should be selected so as to maximize the advantages of promoting the cultivation of plants; intercropping and interplanting should also be selected as early maturing. The best breeding period should not exceed 80 days in order to shorten crop symbiosis and reduce the adverse effects of different crops; plastic film covering and conventional cultivation can be comprehensively determined according to the conditions of estuary and harvest time, but the growth period Should not exceed 95 days. Of course, the effect of staggering the harvest period can also be achieved by sowing seeds of different ripening dates in the same period. Maize is not sensitive to the length of sunshine, so the same variety can be planted in spring, summer and autumn. It is very conducive to batch sowing in batches, mainly based on different cultivation conditions and consumption habits.
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