Sowing time of wheat in heavy snow and solar terms

In warmer regions, there is a saying that "the autumnal equinox is early, the first frost is late, and the cold dew is just right for planting wheat". It is precisely because of the climate differences in different places that there are two different proverbs about autumn sowing wheat, which are neither conflicting nor contradictory, and are classic and practical because of their cross-regional nature. Take the cultivation of wheat in Jiaodong as an example. In addition to the above-mentioned proverb of planting wheat in cold dew, in actual planting, there are planting arrangements according to hills, mountains, depressions and rivers. In A Xi's memory, when I was a child, the private plots in the mountains were always planted first, and the more fertile land was planted later.

The sowing time will be slightly different. This is the hometown of Agricultural University in southwest Shandong, and it is also the best time to grow wheat. According to the season, today is just cold dew, which is suitable for wheat sowing. Old people in rural areas often say: "The autumn equinox is early, the first frost is late, and the cold dew is just planting wheat." 3 ~ 5 days before entering the freezing period, pour frozen water to keep the wheat seedlings safe through the winter. Conditional place, broken straw, dead leaves, weeds, plant ash, sand, etc. It can be sprinkled on wheat seedlings in wheat fields to prevent cold and low temperature and frostbite of wheat seedlings. (5) In the rain-rich areas in the south.

The winter management of winter wheat should be watered well during the heavy snow and solar terms, rather than during the severe cold and solar terms, because the water poured during the severe cold and solar terms can not penetrate into the ground quickly, there will be bright water, which will freeze at night, causing the wheat seedlings to freeze and suffocate. The influence of ecological conditions (latitude, altitude), development characteristics and accumulated temperature before winter is somewhat complicated, so we only need to arrange sowing according to local planting experience here. Our northern region is generally cold dew, mainly depending on the water content.

Cold dew and first frost. There is a well-known proverb, "The white dew is early, the cold dew is late, and the autumn equinox is the time to plant wheat." It is said that the white dew is early, but the cold dew season comes too late, and the autumn equinox is just the right time to plant wheat. It is also a double season, grabbing autumn crops such as peanuts and corn, and planting winter wheat every year. Therefore, in our countryside, the solar term of cold dew has also become the standard time for farmers to sow winter wheat, and the sowing date is advanced or postponed according to this cold dew.