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Kidney bean

Bean, also known as green beans, kidney beans, Beans, beans claimed some areas, such as Shanghai. Bean annual herb belonging to the legume, according to plant traits and dwarf trailing into two major categories. Like warm weather, except for a few of regions such as the Northeast and northern Hebei Province for Summer harvest, most of the north and south can be spring and autumn cultivation, Europe and other places are also widely grown, called the world famous edible beans. Its mature pods or beans, cooking distinctive flavor, always welcome.

    Bean originated in Central and South America, according to research 7000 BC have been domesticated in Mexico and the Peruvian beans, and widely cultivated. Introduced to Europe in the early 16th century, the 16th century by the Spanish and the Portuguese brought it to Africa, India and China.    In fact, beans are very many species, such as common bean pod length, was the sword-shaped; curved pod beans, pod short and wide, shaped like a crescent moon. Rectangular shape beans, kidney-shaped, polygonal, oval or round; beans colors are white, yellow, green, red, black, brown, because the species-specific, as the vegetable seed cultivation often has white and brown.

    Bean is rich in protein, fat and other nutrients needed by the body, but must pay attention to food law. Because beans or pods often also contain some toxins, such as do not eat cooked beans, sometimes acute poisoning can occur, such as dizziness, nausea, vomiting, kidney bean toxins which are at play. Bean toxins including "hemagglutinin" (beans) and "honey locust factor" (pods). In fact, the method to prevent poisoning is extremely simple beans, fry cooking to add water and simmer better. Because "hemagglutinin" and "saponin element", after a certain time the water is heated, it will be destroyed detoxification.

    Certain breeds Bean also has ornamental value, such as runner beans, with tall stems, bright color, scarlet Papilionaceae, pod length and width, if planted in the garden, very enjoyable.

    Bean root system, there are nodules have short stems, semi-trailing and trailing. Bean pods mature self-sowing to germination reproductive process is divided into four periods seedlings, vines and flowering pod pump and so on. ① germination: optimum temperature 20 ~ 25 ℃, after seed imbibition, young roots appear at the optimum temperature for 1 to 2 days, 5 to 7 days of the first true leaves appear. ② seedling: seedling growth temperature 18 ~ 20 ℃. ③ spread of smoke; rapid leaf growth. ④ pod flowering period: dwarf species is generally 30 to 40 days after sowing, flowering pod will enter the stage, trailing species is generally 50 to 70 days after sowing period into the flowering pod.

    Bean wide adaptability to soil, the most suitable for the soil more profound, more organic, well-drained loam planting. Generally use Takakuro before planting should Fertilizers, stems with the application of fertilizer phosphorus, potassium, promote root growth and activity of Rhizobium. Flowering control of water, after the pods should be sufficient water supply. In flowering pod stage, often causing pod off the flowers, so in this period must continue to supply nutrients to maintain good growth of stems and leaves.

    Nenjia generally 10 to 15 days after flowering, harvest, pods suitable for 5 ~ 8 ℃ low temperature storage, about 30 days after flowering, seed maturity, choose healthy plants stay healthy seed pods.

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