The latest planting conditions of kidney beans
Green beans originated in Central and South America and were introduced to Asia from the 17th century to the 19th century. Green beans can be widely planted in the north and south of China. Today, I will share with you the planting conditions of green beans.
temperature requirements
Green beans love warmth and are not resistant to frost. The temperature range of seed germination is 20-30℃, and it cannot germinate below 10℃ or above 40℃. Seedlings are sensitive to temperature changes, short-term at 2-3℃ low temperature began to lose green, 0℃ is frozen.
illumination requirement
They can be divided into three types: photoperiod sensitive type, photoperiod insensitive type and photoperiod moderately sensitive type.
water demand
The kidney bean root system is developed, the lateral root is many, drought-tolerant but not waterlogging. Seed germination needs to absorb enough water, but too much water, soil oxygen, seeds easy to rot. The suitable field water holding capacity is 60-70% of the maximum water holding capacity during plant growth stage, and the suitable air relative humidity is 65-80% during flowering stage.
Soil and nutrient requirements
Green beans are most suitable for cultivation in deep, soft, humus and well-drained soil. Sandy loam soil, loam soil and clay soil can grow, not suitable for cultivation in low wetlands and good heavy clay soil. The appropriate pH is 6-7. It should not be too acidic or alkaline. Green beans absorb more nitrogen and potassium and less phosphorus. It also requires a certain amount of calcium.
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