Management of the latest flowering period of balsam pear

The first key period of balsam pear planting is flowering stage, and the management of flowering stage directly affects the fruit setting rate of the next important period and the yield. Therefore, it is very important to do a good job of fertilizer, water, temperature, humidity, pruning, ensuring the success rate of pollination and preventing diseases and insect pests during flowering. We must pay attention to planting, and we will talk about specific management operations and points to pay attention to later.

1. Control fertilizer and water

Before flowering, after binding vines, we can start to use flower-promoting fertilizer. Generally, compound fertilizer is mainly applied, nitrogen fertilizer is reduced, phosphorus and potassium fertilizer are increased, and 0.2% boron fertilizer solution is sprayed after flowering to protect flowers. After a batch of flowers and fruits, quick-acting chemical fertilizer should be applied once, about 4 times of topdressing, and all melons will be stable. Irrigation can be done once three days after the first flower promotion fertilizer to ensure the water needed for flowering. Do not water unless there is drought in the future. Watering will cause flowers and fruits to fall.

2. Temperature and humidity

Generally flowering in the summer appearance, so the temperature, to be higher, but not too high, generally the most suitable temperature is between 20 and 25 degrees. It can flower above 18 degrees, affect flowering above 30 degrees, and then it is easy to cause pollen death, incomplete flower development, and abnormal flowers. It is best to maintain 45% to 50% of soil moisture during flowering, dry surface, and sufficient water content in the soil after 3 cm underground. The environmental humidity between rows of plants can be appropriately higher to keep the water content of leaves, which is conducive to nutrient transportation.

3. Branch adjustment

When the flowers are stable, some weak flowers and excess flowers need to be thinned out. Generally, 4 to 5 female flowers are left on the strong branches, one to two male flowers are left, and 3 female flowers and one male flower are left on the thin branches to ensure good pollination and fertilization. After thinning flowers, weak branches can be removed in time, generally mainly weak branches. 6 to 7 branches can be left on the main vine, and the small branches on the branches can be thinned when they are dense. Other times don't worry too much. This concentrated nutrition to ensure the quality of the melon.

4. Disease and pest control

Aphids and whiteflies are the main pests in flowering stage. The main damage to leaves, leaves lose the ability to photosynthesis, unable to provide products to flowers and drop flowers. Spray 1500 times omethoate aqueous solution or 10% imidacloprid WP. Diseases mainly powdery mildew, mainly affected by leaves, stems, disease occurs, to timely cut diseased branches, less nitrogen fertilizer, do not accumulate water. Spray 50% colloidal sulfur 100 to 500 times. Anthrax spray 50% carbendazim 500 to 600 times solution, once a week three times in a row.

Fertilization should be applied to promote flowering during flowering period, and good temperature and humidity should be maintained to maintain growth. In addition, adjusting branches can concentrate superior resources to supply fruits and ensure quality and yield. Finally, it is to prevent pests and diseases from causing flowers to fall and not bear fruit. Doing these well is the main management content of the flowering period.