#Agronotechnical Science Contest #Alfalfa What are the requirements for the growing environment?
The root of the alfalfa is thick, and because its roots reach 30 feet (nine meters) into the soil, it can absorb more minerals than other plants. This nutrient-rich plant is also resistant to strong drought in areas with limited rainfall. Long drought tolerance is strong, so alfalfa is also often used as a plant for soil and water conservation and slope protection, and has high ecological value.
Because alfalfa belongs to the legume family and has a strong ability to fix free nitrogen in the air, alfalfa is also more tolerant to barrenness. In addition, alfalfa is very hardy and can safely overwinter in the cold winter of minus 20 ° C, which is also an advantage that tropical pastures such as giant fungus grass, red elephant grass, imperial bamboo grass, and augmented grass do not have.
Note: Alfalfa has strong adaptability to soil and is not strict about soil properties, but it is best to choose neutral or slightly alkaline sandy loam soils with deep soil layers and good drainage. Soil acidity is an important factor limiting the high yield of alfalfa, therefore, the most suitable PH value is 6.5-7; acidic soil PH4.5-5, 150 kg of lime per mu should be applied; PH5.0-5.5, lime per mu is applied 120 kg; PH5.5-6.0, lime per mu is applied 80 kg; PH6-6.5, 50 kg of lime per mu.
---------- I am an agricultural person who is haoxing agriculture and deeply cultivates alfalfa cultivation
