How to Plant Adzuki Beans: A Full Guide to Planting Methods and Timing

Adzuki beans are one of the five grains and miscellaneous crops. After their nutritional value and benefits were heavily promoted, people's fondness for adzuki beans reached an unprecedented level. In everyday life we often use adzuki beans and often eat foods made with adzuki beans as an ingredient. But for the new generation of young people today, they truly do not know when adzuki beans are sown, nor do they know how adzuki beans should actually be planted. Below, Qinnong Web will give everyone the answer, and at the same time we hope to help farmer friends who grow adzuki beans.

Planting Time

In different regions, the end time for adzuki beans differs, and the growth cycle and so on also differ. In some regions adzuki beans can be planted for two seasons, while in many regions only one season of sowing can be done. Taking the planting time in most regions as an example, it is generally best to plant during the period from late May to early June. At this time the temperature is basically stable at around 20 to 28 degrees, and during this period moisture is also relatively abundant, which is very suitable for adzuki bean seeds to germinate. Of course, you can also plant a little later, but the yield will decline somewhat.

Planting Methods

1. Reasonable Seed Selection

There are now quite a few types of adzuki bean seeds on the market, divided into large adzuki beans and small adzuki beans, and large adzuki beans and small adzuki beans are further divided into many types. So when selecting seeds, the first thing we must consider is the yield of the adzuki beans, the second is whether the seed germination rate is high, and the last is the various resistances of the seeds. We choose adzuki bean varieties suitable for local planting based on factors such as the soil, climate, temperature and rainfall of different regions. At the same time, no matter how good the variety is, you must not buy old seeds; the survival rate is too low and the losses are too great.

2. Scientific Land Preparation

Since adzuki beans themselves are more adaptable to the environment than other crops, we can choose to ignore the selection of the planting site. However, one point that must be considered is that the planting site should not have excessive moisture, that is, the soil humidity must not be too high, otherwise it is very easy for disease to occur and affect yield. When preparing the land, we need to clear all debris from the field, plow the soil deeply once, then spread a layer of lime to eliminate bacteria, expose it to the sun for about ten days or so, spread a layer of livestock manure or plant ash, and then make ridges and open furrows and wait for sowing.

3. Sowing Methods

The skin of adzuki beans is relatively hard. If sown directly, the seeds germinate very slowly, and the germination rate is not very high either. So before sowing, we need to soak the adzuki bean seeds in clean water for about twenty minutes, then dress the seeds with a chemical agent, leave them for about twenty minutes, then rinse them clean with water, and then place them in an environment at a temperature of 25 degrees to promote germination. After about five days they can be sown. There are two sowing methods. One is to make a small hole in the soil at intervals of 30 cm, scatter three seeds into each small hole, and then cover the seeds with soil. The other is to first cultivate the seeds in a seedbed, and when the seedlings grow to about 10 cm, transplant them at a certain density.

4. Fertilization Techniques

Fertilizing adzuki beans requires technical skill; you cannot fertilize randomly. Too much fertilizer will cause the bean seedlings to grow excessively without producing pods; too little fertilizer will make the pods not plump and the quality will not meet standards; and the wrong type of fertilizer will cause the plants to die or become diseased. The entire growing period requires two applications of fertilizer. The first is the seedling-promoting fertilizer, that is, about one week after planting, on average one mu requires 100 jin of urea, 50 jin of phosphate fertilizer and 30 jin of compound fertilizer. The second fertilization is when the adzuki bean seedlings enter the flowering and pod-setting stage. This period is when adzuki beans need the most nutrients and is also the key period that determines yield. On average, evenly spread 300 jin of farmyard manure, 100 jin of potassium fertilizer and 50 jin of boron fertilizer per mu.

5. Disease Prevention

Adzuki beans have relatively strong resistance to diseases, so under normal circumstances pests and diseases rarely occur, but occasionally rust disease, aphids and leaf roller worms appear. The most effective control method is to spray 5% triadimefon wettable powder at 1000-1500 times dilution, or 40% Fuxing emulsifiable concentrate at 8000 times dilution, or

50% carboxin emulsifiable concentrate at 800 times dilution, or 50% sulfur suspension concentrate at 200 times dilution, spraying once every six or seven days, two to three times is enough. For aphids and leaf roller worms, mainly trichlorfon solution or dimethoate emulsifier is used for spraying.