Key Temperature Management Techniques for Melon Cultivation
Melon, also known as sweet melon, is an annual trailing herbaceous plant of the Cucurbitaceae family. Melons are very sweet and are distributed throughout China. Their cultivated area is also quite extensive, and melons have relatively high temperature requirements for growth, with different temperature requirements at different growth stages. Many friends have experienced cultivation failure due to improper temperature control, so today I've brought you the temperature management guide for melons. Let's take a look!
1. Planting Period
Temperature management during the planting period of melons is very important, as it directly affects the growth of melon seedlings and the flowering and fruiting rate in the later stage. When planting, ensure that the soil temperature at a depth of about 10-12 cm is above 15°C. Temperature should also be adjusted reasonably according to different varieties. For example, thin-skinned melons have relatively strong low-temperature tolerance, while thick-skinned melons are weaker. Within three days after planting, do not ventilate; improve the soil's heat and moisture retention capacity, and manage with appropriately high temperatures. With sufficient moisture, the soil temperature can be raised to around 38°C.
2. Seedling Recovery Period
When the temperature in the greenhouse gradually rises and the seedlings grow a new leaf, control the temperature at around 31-32°C. If the variety is thick-skinned, appropriately raise the temperature to around 33-35°C, and keep the nighttime temperature at around 13°C. During the seedling recovery period, temperature is mainly managed by watering to promote root penetration and balance underground and aboveground growth. When the morning temperature is above 30°C, ventilate appropriately to keep the temperature within the suitable range. When it drops to around 27°C in the afternoon, stop ventilating, maintain the greenhouse temperature, and raise the soil temperature.
3. Vine Elongation Period
The vine elongation period is an important growth stage for melons. During this period, the stems and leaves of melons grow faster, and temperature requirements become stricter. During this period, control the temperature at around 26-28°C. If it is a thick-skinned melon, appropriately raise the temperature to around 30°C. The temperature should not be too high; if it exceeds the suitable range, it can easily cause excessive vegetative growth in melons, affect female flower differentiation, and reduce the fruit-setting rate.
4. Flowering and Fruiting Period
The flowering and fruiting period is the key time for melons to bloom and set fruit. At this time, the temperature should be appropriately lowered, and it should not exceed the range of 15-30°C. If it exceeds this temperature range, it will seriously affect pollination of melons and reduce the flowering and fruiting rate. The optimal temperature should be controlled at around 26-27°C. Avoid excessive temperature fluctuations and keep the temperature stable to prevent melons from being unable to adapt, which would reduce the fruit-setting rate.
5. Enlargement Period
About one week after the melon plant successfully pollinates and sets fruit, it enters the enlargement period. At this time, melons transition from vegetative growth to reproductive growth. Therefore, appropriately raise the temperature to promote fruit enlargement, raising the temperature to around 32°C. For thick-skinned melons, raise it by about another 2°C, and keep the nighttime temperature at around 17-18°C. When the minimum temperature is above 15°C, do a good job of ventilation, reduce humidity, and prevent pests and diseases.
The above is a brief introduction to temperature management for melons. Melons have relatively strict temperature requirements. Although they can still grow normally without such precise control, it will still have a certain impact on melon flowering and fruiting. Therefore, friends who want high and stable yields should still pay attention to controlling the temperature well. That's all for today's introduction. This article is for reference only. Thank you for reading and supporting.