Basic information of Japanese spinach with big leaves

Full name of variety: Japanese big leaf spinach

Keywords: green leafy vegetables, spinach vegetables

Characteristics: Spinach is a biennial green-leaf herb belonging to the genus Spinach of Chenopodiaceae, native to Iran. It was introduced to China in the early 7th century. Spinach with large leaves has flat growth, large leaves, dark green leaves, strong cold resistance, weak heat resistance and good quality. The leaves are tender and a little astringent. Suitable environment: cold-resistant, able to tolerate low temperature below 0℃, suitable temperature for seed germination is 15 ~ 20℃, and suitable temperature for leaf cluster growth is about 20℃. Spinach has developed taproots and should be planted in loam with deep soil layer, loose and fertile soil, strong water and fertility conservation, pH value of 6 ~ 7 and convenient irrigation and drainage. Nutritional value: Spinach has a high nutritional value, containing protein 2.4g, carbohydrate 3. 1g, vitamin C 39mg, carotene 3.87mg, calcium 72mg, phosphorus 53mg, iron 1.8mg and oxalic acid. It can tonify five internal organs, dredge blood vessels, quench thirst, moisten intestines, lower qi, harmonize middle energizer, promote growth and development, and enhance disease resistance. It is a good food for patients with diabetes and hypertension, and it is also very beneficial for patients with constipation and hemorrhoids. Buying points: thick leaves and bright colors are better. How to eat: stir-fry, cold salad, soup and stuffing. Note: Spinach contains oxalic acid combined with calcium salt to form calcium oxalate crystals, which will make the urine color of patients with nephritis turbid, cast and salt crystals increase, so it is not suitable for patients with nephritis and kidney calculi.