When is the best time to plant red beans (the best sowing date and planting method of red beans)
Which month is the best for planting red beans?
The planting time and growth cycle of red beans are different in different regions. In some areas, red beans can be planted for two seasons, while in other areas, they can only be planted for one season.
We take the planting time in most areas as an example. Usually, it is best to plant it from April to June every year. April belongs to early sowing, and sowing in May-June can achieve high yield and bumper harvest.
At this time, the temperature is basically stable at 20 to 28 degrees, during which the water is sufficient, which is very suitable for the germination of red bean seeds.
Of course, it can be planted later, but the output will drop. Because sowing too early and too late is not conducive to management.
Moreover, red beans did not emerge in time after sowing, which caused high nutrient consumption and was easy to be infected with diseases. Pay attention to control the sowing depth when sowing, otherwise it will cause uneven emergence.
How to sow and plant red beans
① Reasonable seed selection
There are many kinds of red bean seeds on the market now, including big red bean and adzuki bean. There are many kinds of big red bean and adzuki bean, so we should consider the yield of adzuki bean first.
The second is the high germination rate of seeds, and the last is the resistance of seeds. We will choose red bean varieties suitable for local cultivation according to the soil in different regions, climate, temperature, rain and other factors. At the same time, no matter whether the variety is good or not, you can't buy old seeds, the survival rate is too low and the loss is too great.
② Scientific land preparation
Because of its own reasons, red bean has stronger adaptability to the environment than other crops. Therefore, we can choose to ignore the choice of planting location.
However, it must be considered that there should not be too much moisture in the planting area, that is, the soil moisture should not be too high, which is not easy to get sick and affect the yield.
When preparing soil, it is necessary to clean up all the sundries in the ground, dig the soil deeply, and sprinkle a layer of lime to kill bacteria.
Expose yourself to the sun for about ten days, sprinkle a layer of livestock manure or plant ash, and then make furrows and wait for sowing.
③ Sow in time.
Sowing should not be done when the soil is too sticky, otherwise the problem of seedling emergence will easily occur, and the sowing temperature should be controlled at 15- 18℃. Generally, red beans are planted in July and August at the latest, and are generally sown by sowing.
Early-maturing varieties and low-lying areas should increase the sowing amount, and late-maturing and high-fertilizer and water management fields should reduce the sowing amount.
If conditions permit, seed dressing can also be carried out to improve the disease resistance of seeds and ensure the cultivation of high-quality and strong seedlings.
④ Scientific fertilizer and water management.
Adzuki beans need seed fertilizer, flower fertilizer and bulging fertilizer. The seed fertilizers are ammonium sulfate and calcium superphosphate, and potassium sulfate should be added to the potassium-deficient plots. Pay attention to avoid burning roots when applying seed fertilizers.
Topdressing urea and potassium sulfate at flowering stage and topdressing outside the roots at filling stage. For fertilizer-removed plots, foliar spraying fertilizer is used to supplement nutrients, and urea and potassium dihydrogen phosphate are the main fertilizers.