What kinds of beans are there? What are the breeding methods?

Knife bean is one of our common vegetables, like temperature and heat resistance, like strong light, lack of light affect blossom and pod. It has strong adaptability to soil. Knife bean has strong resistance and wide adaptability. at present, it has been planted in most areas of our country. So what kinds of knife beans do you have? What are the methods of raising seedlings? Next, let's have a look with the editor.

I. varieties of knife beans

1. Trailing knife beans

Strong growth, stout vines, 2-4 meters long, long growth period, late ripening. Mature pods are about 30 cm long and 4-5 cm wide, with each pod weighing about 150 grams. The seeds are large and weigh about 1320 grams. At present, most of the plants cultivated are trailing knife beans.

2. Short knife bean

The stem is erect, the plant height is about 1 meter. Leaves, pods, seeds are small, mature pods 10-20 cm long. The maturity is earlier, but the yield is lower and the cultivation is less.

Second, what are the breeding methods of knife beans?

1. Land preparation and border formation

Select fields with deep soil, drainage and good ventilation, deep ploughing and freezing, raking the land and making beds with a width of 130-150 cm after the beginning of spring. Combined with land preparation, 2500 kg of fully mature farm manure per mu was used as base fertilizer.

2. Sowing and raising seedlings

The seeds of knife bean are generally not easy to germinate, so it is appropriate to raise seedlings and cut them. The seeds are large, full, neat in size, consistent in color and without mechanical damage or insect injury. The seeds are sunned for 1 day, soaked in warm water for 24 hours, and then sowed after absorption and expansion. If dry seed is used for direct seeding, it is appropriate to make the seed navel downward when sowing, so as to facilitate the absorption of water to promote development. Sowing should not be too deep, generally sowing depth of about 5 cm, if the soil is too heavy and wet, poor ventilation, seeds are easy to rot, it is best to put under the condition of 25 degrees 30 degrees to sprout, wait for 2 stem leaves to grow in the field.

Seedling raising is generally carried out from late March to mid-April. Nursery bed can choose hotbed or cold bed, before sowing, pour enough soil moisture, row spacing of 13 cm, each hole sowing 1 grain, cover soil 3 cm thick, first cover fine soil, and then cover-layer of grain bran or grass ash. Do not water too much after sowing, keep it warm and wet, so as to avoid rotten seeds.

3. Field management

(1) Fertilizer and water management

Keep the soil moist before emergence, but it is not easy to have too much moisture to prevent rotten seeds. Moisture should be controlled before flowering and should not be watered more. The amount of irrigation should be increased after flowering and podding, especially when the young pods are 3-4 cm long, adequate water supply is needed. After emergence, fertilizer was applied by stages, the first fertilizer was applied in 4 true leaves, the second fertilizer was applied in combination with watering after pod setting, and topdressing was applied 1-2 times in the middle and later stage of pod setting. Complete fertilizers of nitrogen, phosphorus and potassium should be applied, and nitrogen fertilizer should be applied appropriately.

(2) cultivating soil by ploughing

It is generally ploughed 2-3 times before flowering to increase soil temperature and preserve soil moisture. Combine with ploughing to get rid of weeds in the field and cultivate the soil properly.

(3) Plant adjustment.

The main vine is put on the shelf when it is 50cm long. Proper removal of lateral vines or coring and thinning of leaves during flowering and podding period is beneficial to improve podding rate.

The above is the introduction of knife beans, which usually blossom from July to September and bear fruit in October because they are shaped like a knife. Farmers who grow knife beans must master the above main points of raising seedlings.

With regard to the wonderful pictures and articles and popular comments on Daodou, you may be interested in the following recommended contents of Nongxun. Welcome to read.

Agricultural products you may be interested in: national supply of high-quality knife bean seeds