1. Based on local conditions, select the type of species that suits the local climate and cultivate cornices.
First, according to the local climate characteristics, manual management, market demand, etc., select the appropriate ripening period, the appropriate type of watermelon; Second, select the cultivation mode, a reasonable scheduling sowing, watermelon fruit set, fruit enlargement in the local climate suitable for its The season of growth.
2. Deeply plough the soil, increase the organic fertilizer, and promote the development of the root system.
3. Cultivate strong seedlings.
After the seedlings are sowed, the watermelons are cultivated at the seedling stage (the first true leaf to the 5 leaf 1 heart) at a low temperature. The night temperature is maintained at 15°C to 20°C, and it is suitable at 25°C to 30°C during the day, which is favorable for the formation of robust female flowers. . Implementation of mulching film cover, can prevent drought, drainage, good permeability, rooting seedlings, bred strong seedlings.
4. Conduct artificial pollination. In the case of rainy weather or less insect vectors such as bees, artificial pollination is performed to increase fruit setting rate and fruit setting quality.
5. Control the fruit setting. Choosing to sit and gourd under appropriate temperature conditions, delaying fruit setting when encountering low temperature, rain, lack of fertilizer, poor light, or weak plant growth. In the fruiting period, select the young fruit that has left a circle and remove the malformed young fruit.
6. Appropriate application of fertilizer and water, enhance plant assimilation.
On the basis of applying adequate base fertilizer, fertilizers such as urea or ammonium sulfate are applied at the seedling stage, extending to the flowering stage to re-apply phosphorus and potash fertilizers, and applying less nitrogenous fertilizers, such as application of cake fat or mature chicken and duck manure, can also be applied topdressing. Diammonium phosphate, ammonium sulfate, calcium superphosphate, potassium sulfate and other fertilizers. Appropriate spraying of potassium dihydrogen phosphate, potassium sulfate and trace element fertilizers to strengthen field management to ensure that there are more functional leaves (60 to 90 functional leaves). Before the expansion of the squash, the nitrogen and potassium fertilizers should be properly applied and watered to meet the nutritional requirements of rapid fruit expansion.
7. Scientific field management.
In addition to rational fertilization of water and soil management, field management such as pruning, vine mulching, and melon doubling was strengthened to prevent the growth of leggy and crude vines, promote the normal growth of plants, and rationally balance the assimilation of plants. When pruning, depending on the planting density, species characteristics, etc. stay 1 to 2 side vines. When the vegetative growth is too prosperous during fruit set-up, scientific vines, twisted vines, and picked hearts are used to control leggy and promote the growth center of plants to turn to reproductive growth. It is better to choose the second female flower and fruit set for the early maturing varieties and the second and third female flowers for the middle and late mature varieties. After the fruit is stable, it is managed during the period of fruit enlargement, along with melons, pads, and melons.
8. Scientific and rational use of plant growth regulators, pesticides, as far as possible without chemical herbicides.
Use less or no sweeteners, bulking agents, ripening agents and other plant growth regulators, use high-efficiency, low-toxic, low-residue pesticides that have no adverse effects on watermelons, and use protective agents immediately when they encounter bad weather during growth. Plant growth regulators such as “Fengpinsu†and “increased yield agents†increase plant resistance to stress.
First, according to the local climate characteristics, manual management, market demand, etc., select the appropriate ripening period, the appropriate type of watermelon; Second, select the cultivation mode, a reasonable scheduling sowing, watermelon fruit set, fruit enlargement in the local climate suitable for its The season of growth.
2. Deeply plough the soil, increase the organic fertilizer, and promote the development of the root system.
3. Cultivate strong seedlings.
After the seedlings are sowed, the watermelons are cultivated at the seedling stage (the first true leaf to the 5 leaf 1 heart) at a low temperature. The night temperature is maintained at 15°C to 20°C, and it is suitable at 25°C to 30°C during the day, which is favorable for the formation of robust female flowers. . Implementation of mulching film cover, can prevent drought, drainage, good permeability, rooting seedlings, bred strong seedlings.
4. Conduct artificial pollination. In the case of rainy weather or less insect vectors such as bees, artificial pollination is performed to increase fruit setting rate and fruit setting quality.
5. Control the fruit setting. Choosing to sit and gourd under appropriate temperature conditions, delaying fruit setting when encountering low temperature, rain, lack of fertilizer, poor light, or weak plant growth. In the fruiting period, select the young fruit that has left a circle and remove the malformed young fruit.
6. Appropriate application of fertilizer and water, enhance plant assimilation.
On the basis of applying adequate base fertilizer, fertilizers such as urea or ammonium sulfate are applied at the seedling stage, extending to the flowering stage to re-apply phosphorus and potash fertilizers, and applying less nitrogenous fertilizers, such as application of cake fat or mature chicken and duck manure, can also be applied topdressing. Diammonium phosphate, ammonium sulfate, calcium superphosphate, potassium sulfate and other fertilizers. Appropriate spraying of potassium dihydrogen phosphate, potassium sulfate and trace element fertilizers to strengthen field management to ensure that there are more functional leaves (60 to 90 functional leaves). Before the expansion of the squash, the nitrogen and potassium fertilizers should be properly applied and watered to meet the nutritional requirements of rapid fruit expansion.
7. Scientific field management.
In addition to rational fertilization of water and soil management, field management such as pruning, vine mulching, and melon doubling was strengthened to prevent the growth of leggy and crude vines, promote the normal growth of plants, and rationally balance the assimilation of plants. When pruning, depending on the planting density, species characteristics, etc. stay 1 to 2 side vines. When the vegetative growth is too prosperous during fruit set-up, scientific vines, twisted vines, and picked hearts are used to control leggy and promote the growth center of plants to turn to reproductive growth. It is better to choose the second female flower and fruit set for the early maturing varieties and the second and third female flowers for the middle and late mature varieties. After the fruit is stable, it is managed during the period of fruit enlargement, along with melons, pads, and melons.
8. Scientific and rational use of plant growth regulators, pesticides, as far as possible without chemical herbicides.
Use less or no sweeteners, bulking agents, ripening agents and other plant growth regulators, use high-efficiency, low-toxic, low-residue pesticides that have no adverse effects on watermelons, and use protective agents immediately when they encounter bad weather during growth. Plant growth regulators such as “Fengpinsu†and “increased yield agents†increase plant resistance to stress.
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