Green beans are kidney beans, but the names vary from place to place. Green beans like warm but not cold. Seeds can germinate only when the temperature reaches 20-30℃, and cannot germinate when it exceeds 40℃. Seedlings are sensitive to temperature. When the temperature drops to 2-3℃ in a short time, plants will lose their green color, and when it drops to 0℃, they will freeze to death. Kidney bean has developed root system and many lateral roots. The taproot can reach 80 cm underground, and the lateral root width can reach 60-80 cm. The main absorption roots are distributed below the surface 15-40 cm.

1. Is mung bean kidney bean?

1, green beans and kidney beans are the same crop, but their names are different.

2. Green beans are warm or not. The seed germination temperature is 20-30℃, and it cannot germinate when it is lower than 10℃ or higher than 40℃. Seedlings are sensitive to temperature. When the temperature is 2-3℃ for a short time, plants will lose their green color, and when the temperature drops to 0℃, they will be frozen.

3. Kidney bean has developed root system and many lateral roots. The main roots of plants can reach 80 cm underground, and the width of lateral roots can reach about 60-80 cm. The main absorption roots are distributed in the soil layer below the surface 15-40 cm.

4. Green beans are drought-tolerant but not waterlogged. Water should be provided when seeds germinate, but the water supply should not be too much, otherwise it will easily lead to seed rot.

5. It is advisable to keep the field water capacity at 60-70% during the plant growth period, and control the relative humidity in the air at 65-80% after flowering.

Second, the planting method of green beans

1, planting time

(1) Spring sowing

(1) sow in the northeast from late April to mid-May.

② Sowing in April in most areas of northwest and north China.

(3) Sowing in the northern plateau in early May.

(4) Sowing in most areas of Central China and Southwest China from late February to early March.

⑤ In East China, sow from late March to early April.

⑥ In South China, the sowing time is from February 65438 to April of the following year.

⑦ In Yunnan, 65438+ was sown from late October to early February in1.

(2) Autumn sowing

(1) In North China and Northwest China, sow in early July and August.

(2) Sowing in Southwest China in early August.

(3) Sowing in East China from late July to early September.

(4) Central China, sowing in late July to early August.

⑤ In South China, sow from late August to 10.

2. Planting method

(1) Select a plot

① loam or sandy loam plots with deep soil layer, loose and fertile soil, good drainage, sufficient illumination, rich organic matter and PH value of 6-7 are selected as planting areas.

② The planting area is 700- 1000 meters above sea level. The large temperature difference between day and night is beneficial to the growth of green beans, and the picking period can reach about 70 days.

(2) Soil preparation and fertilization

(1) Dig the soil deeply and rake it finely, then apply 50-75 kilograms of lime per mu, and furrow it to make the border.

② The border width is 1.5m in paddy field and 1.4m in dry land.

(3) Ditching in the center of the border and applying 1500-2000 kg manure +50 kg compound fertilizer+1 kg borax as base fertilizer.

(3) disinfection and sowing

① Choose healthy seeds with full seeds as the sowing objects, and then use 50% carbendazim (0.4% of the seed amount) for seed dressing and disinfection.

(2) When the soil is dry, water should be poured on the border before sowing. Before sowing, 50 kg of calcium magnesium phosphate fertilizer should be applied to the hole.

③ Sow 2 rows per border, with the hole spacing of 25-30 cm and the row spacing of 65-70 cm. Sow 3-4 seeds per hole, and use 2-2.5 kg seeds per mu.

(4) can you leave some when sowing? Backup seedling? , which can be used to transplant seedlings to fill the vacancy in the future.

(4) Site management

(1) 7- 10 days after sowing, do a good job of checking seedlings, supplementing seedlings and thinning seedlings, and leave 2 strong seedlings in each hole.

② 65,438+0 intertillage weeding should be carried out on 65,438+0 days after sowing, and the second time should be carried out before climbing vines. Tillage should also cultivate soil at the base of plant stems to promote the occurrence of adventitious roots.

③ After the seedlings grow two leaves, 900 times of natural brassinolide can be sprayed, which is beneficial to their healthy growth.

④ Use small bamboo sticks (about 2.5 meters long) to set them up first, and then set up vines? People? After the Chinese character frame and vines are put on the shelves, covering the frame with straw can achieve the effect of cooling and moisturizing.

⑤ Less topdressing and more pod fertilizer. Pod fertilizer should be topdressing 2-3 times, and compound fertilizer 10- 15 kg should be applied per mu.

⑥ Combined with pest control, topdressing outside roots and spraying 0.2% potassium dihydrogen phosphate can improve pod setting rate and yield.

(5) Prevention and control of pests and diseases

① soybean moth: at the initial flowering stage, 5g 48% les burn+? Is the sea out of spirit? 5 grams of water spray, or use phoxim 25 grams+enemy kill 6 ml of water spray 15 kg. Spraying 50 grams of bt biological pesticide+6 ml of dichlorvos and 15 kg of water at the pod setting stage, and spraying 45-60 kg of liquid medicine per mu. Spraying time is before 8: 00 a.m. or at night, and the control principle is to replace pods with flowers.

② Aphids: Spray 20% solution for 2000 times in winter in bumper years, or spray 2000 times with 10% solution for one cleaning.

(3) Disease: control bacterial blight, spraying 3000 times 72% agricultural streptomycin (or phytomycin); To control anthrax, spray 75% chlorothalonil 800 times; To prevent rust, spray 50% carbendazim 800 times solution or 20% triadimefon 1000 times solution; To control root rot, spray 500 times of 70% Dixon solution or irrigate roots with 500 times of 70% kocide solution.

(6) Timely delivery

If you want to eat young pods, you can pick them 8- 10 days after flowering, and you can pick them/kloc-0 times a day, which can improve the pod setting rate, ensure the quality and commercialization of pods, and prevent plants from falling flowers and pods due to excessive nutrient consumption.