1. Using potassium dihydrogen phosphate before flowering may cause leggy beans and less fruit. After flowering, 300 times the amount of potassium dimethyl hydrogen phosphate can be used to reduce diseases and increase yield. 2. Cowpeas: Also known as beans, long cowpeas, belt beans, etc., they can be divided into dwarf, semi-vine and vine types according to their stems. Vining cowpeas are mostly grown in the south. 3. French beans: Also called kidney beans, kidney beans, frame beans, etc., they are divided into two varieties: vine and dwarf. They are annual herbaceous plants.

1. Why potassium dihydrogen phosphate cannot be used for beans

1. Reasons why potassium dihydrogen phosphate cannot be used for beans

It is not advisable to use potassium dihydrogen phosphate for beans before flowering. Potassium hydrogen, otherwise it may cause the plants to grow elongated and produce less fruit. After the beans bloom, 300 times the amount of potassium dimethyl hydrogen phosphate can be used as foliar fertilizer, which can reduce diseases and increase yields.

2. Types of fertilizing beans

(1) Applying base fertilizer

In the early growth stage of beans, base fertilizer should be applied. It is suitable to apply decomposed organic fertilizer, and you can also add an appropriate amount. Compound fertilizer. When preparing the land for ridge formation, base fertilizer should be put into the ditch. It is not advisable to plant bean seedlings directly in the ditch where organic fertilizer is applied. Separate the planting place of bean seedlings from the organic fertilizer ditch by 10-15 centimeters to prevent fertilizer from burning the roots of the bean seedlings. .

(2) Apply top dressing

During the growth process, beans require large amounts of phosphorus and potassium. When top dressing, you can use compound fertilizers with high phosphorus and potassium content, and dissolve the fertilizer in water. Promote the absorption of beans. Control the temperature at 20-30°C, apply fertilizer once every 7 days, and apply 2-3 times continuously.

(3) Apply foliar fertilizer

Because the beans will transfer nutrients from the stems and leaves to the pods to promote the growth of the tender pods, the growth of the beans may be There will be a deficiency of trace elements and symptoms such as yellowing of the leaves. You can avoid this by applying more foliar fertilizer during the seedling and vine introduction stages of beans.

(4) Precautions

Beans take a long time to grow. It takes more than 70 days from sowing to harvesting. In addition, the harvesting time is as long as 2 months, so it is important to fertilize. Mainly high phosphorus and potash fertilizer. However, because the nitrogen fixation ability of the roots of carob beans is poor, an appropriate amount of nitrogen fertilizer must be added when topdressing. Note that fertilizer should be applied after the beans have bloomed and formed pods. Applying fertilizer too early will cause excessive stem and leaf development.

2. Types of beans

1. Cowpeas

(1) Cowpeas, also known as beans, long cowpeas and string beans, are annual vegetables of the legume family. . Cowpea stems are divided into three types: dwarf, semi-vine and vine. In the south, vine stems are mainly grown, followed by dwarf stems.

(2) Cowpea is rich in protein, carotene, etc., has high nutritional value and good taste. It is widely planted and cultivated in my country, and its popularity ranks first among all kinds of vegetables.

(3) Cowpea has strong adaptability and can be cultivated in open fields or in protected areas. It can also be produced year-round and can be marketed in all seasons.

2. French beans

(1) French beans, also known as kidney beans, kidney beans, jade beans, kidney beans, April beans, etc., are annual herbaceous plants. It is called Qingming beans in Quzhou, Zhejiang, and green beans in Sichuan and some central China areas. It is a common vegetable on the table.

(2) There are two varieties of green beans: vine and dwarf. They are annual twining herbs with short pubescence on the plants.

(3) French beans can be grown in both north and south of my country. They are generally distributed in eastern China and are cultivated in Hebei, Shanxi, Sichuan, Yunnan, Hubei, Jiangsu and other provinces.

3. Bai Bu Lao

(1) Bai Bu Lao is also known as Laolai Shao, Super White Frame Bean, King of Kings White Frame Bean, etc. This plant has flower seeds. , yellow seeds, white seeds and earthy gray seeds, which are a variety of carob beans. They are characterized by bluish-white color, large beans and loose pods.

(2) The white beans are green-green when they first grow, and then gradually turn green-white. Because this kind of beans looks a bit old in appearance, but tastes not old, people call this kind of beans Baibulao.

4. Lentils

(1) Lentils are also called Emei beans, magpie beans, etc. This kind of beans is native to India and has a long history of cultivation in my country. Lentils are annual or perennial plants with relatively developed root systems and strong drought tolerance.

(2) There are two types of lentil stems: dwarf and vine. The vine type is generally cultivated in my country. The leaves are three compound leaves and the leaves are smooth and hairless.

(3) Bean pods can be fried, cooked, pickled and dried. Bean pods can be cooked, and can also be used to make bean paste fillings and lentil puree.

5. Snake bean

(1) Snake bean is also called snake melon, snake bean, etc. It belongs to the annual climbing herbaceous plant of the genus Trichosanthes in the Cucurbitaceae family. Snake bean is a vine plant with a plant height of about 3 meters. It grows very vigorously and has strong branching.

(2) The fruit of the snake bean is long and cylindrical, usually about 1.30-1.70 meters long. Its two ends are tapered and the tail end is usually bent into a snake shape. The skin of snake beans is light green, the meat is fresh green, and the meat is very soft.

(3) Snake beans can be divided into short fruit type and long fruit type according to the fruit body. According to the skin color, it can be divided into gray-white series, green series, and blue-black series.

6. Oil beans

(1) Oil beans, also known as oil beans, is a plant of the genus Phaseolus of the Leguminosae family. Its main origin is in Heilongjiang Province in Northeast China. and Jilin Province.

(2) Oil bean pods are relatively fresh and tender, have no tendons, have more meat, and are rich in nutritional value. Its tender pods can also be eaten, and the flavor and taste are very good.

(3) The protein content in green beans is very rich, which is 10-20 times that of ordinary vegetables. It also contains 18 kinds of amino acids needed by the human body. In addition, snap beans are rich in dietary fiber, vitamins and minerals.