Watermelon is one of the indispensable fruits of the summer, and its fresh water and sweet tastes are popular. Scientific management is essential in order to obtain a good harvest. What are the technical points for the management of open watermelon cultivation? When do you grow it
I. What are the technical aspects of crop management in the country
1. Land selection and preparation:
In the selection of plots, preference should be given to fertile and loose soils to ensure good air and root growth. Prior to seeding, appropriate deep flipping and fertilization to increase soil fertility. Organic fertilizers are fully integrated into the soil to provide a rich nutrient supply。
2. Dum cover:
Before seeding, black membranes are laid on selected plots. The membrane can effectively increase soil temperature and promote watermelon growth. It can also reduce weed growth, maintain soil moisture and reduce water evaporation。
3. Methods of cultivation:
On the membrane, a small hole is dug every 20 centimetres, each containing 3-4 watermelon seeds. Seeds should not be too deep, at about 1-2 cm. After seeding, the soil is covered lightly and the appropriate humidity is maintained to facilitate seed growth。
4. Fertilizer management:
Watermelon glitter should be selected for cultivation in areas with abundant sunlight. During growth, the soil is kept humid, but excessive water is avoided in order to avoid suffocation of the roots. During the rainy season, water accumulation should be eliminated in a timely manner in order to prevent the root from being immersed in water and causing disease。
5. Pest control:
(a) powdery: this is a common disease, mainly manifested in the presence of white powdered substances on leaves. Control methods include regular spraying of sulfur, maintenance of good ventilation and avoidance of the high humidity of leaves。
(b) root disease: this disease causes the root of the plant to rot and affects water absorption. Preventive measures include the selection of well-drained plots to avoid overwatering。
(c) cucumber spots virus: the spread of the virus can be reduced by using healthy seeds, strengthening field management and regularly removing weeds。
(d) aphids: aphids are one of the common insects that extract a strain of juice and affect growth. Biological control methods, such as the release of predatory insects, can be used to reduce the use of chemical pesticides。
When does the country grow its watermelon
Spring planting:
Spring is one of the most important times for the cultivation of the country's watermelon. It is usually possible to start spring planting when temperatures are above 15 degrees celsius. During this period, the soil warmed up, favouring seed growth and growth. In the spring, care should be taken to protect against cold temperatures and to prevent the effects of low temperatures on young seedlings, including by choosing sunnets。
Summer planting:
The summer is a booming season for watermelons and suitable for field cultivation. Where temperatures are appropriate, the selection of varieties suitable for summer cultivation can yield better yields and quality. During the summer, the temperature is high and care is taken to keep the soil humid and to avoid excessive water evaporation and to prevent the effects of high temperature overheating on the plant。
3. Autumn planting:
The autumn is a time frame suitable for the cultivation of open watermelons in some areas. When summer temperatures begin to decline, autumn cultivation can begin. To the extent possible, short and long-term varieties are selected to ensure harvests by autumn. The fall temperature is more favourable, but care is taken to prevent the impact of the frost on the plant by using cover to protect the seedlings。
Summary: selection of suitable plots, laying of membranes, sound cultivation methods and management of water fertilizers are key elements for successful cultivation. The timing of the cultivation of the country's watermelon varies according to climate and region, with spring, summer and autumn being appropriate periods. It is critical to take measures to ensure that plants grow in a good environment, based on seasonal characteristics and changes in temperature。
