The requirements for environmental conditions of small pumpkins are similar to those of ordinary pumpkins. Seeds can germinate at a temperature of 13°C or more. The optimum germination temperature is 25-30°C, and the sprouts are unearthed fastest. The optimum temperature for growth and development is 18-32°C. The flowering and the result requirements are higher than 15°C. Temperature; The optimum temperature for fruit development is 25-27 °C, the temperature is higher than 35 °C, easy to fall, fruit drop, fruit development stagnation and other phenomena.
It is a short-day crop, low temperature, short-day light can promote early differentiation of female flowers, the number of increased. The pumpkin is happy and grows well under conditions of sufficient sunlight. The fruit grows quickly and is of good quality.
The root system is developed and the drought resistance is strong. Therefore, in addition to requiring higher temperatures, it prefers drier environmental conditions. However, many stems, leaves, and vines of pumpkins have strong transpiration and water consumption. Therefore, soil moisture must be maintained at about 14% to ensure the normal growth of plants. Soil requirements are not strict, with good drainage, fertile and loose neutral or slightly acidic (pH 5 ~ 7) sandy loam is the most suitable.
The amount of fertilizer required is relatively large, and the requirements for the three elements of nitrogen, phosphorus and potassium are relatively high. The appropriate ratio of the three elements is 3:2:6.
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