Management technology of muskmelon after fruit setting in greenhouse

When melon is planted, greenhouse cultivation can achieve high yield and high quality, which is the best choice of many fruit growers, while the management of melon fruit setting in greenhouse is extremely important, which directly affects the yield and quality. So how to manage the melon after fruit setting in greenhouse? Let's take a look at it together with Xiaobian.

1. Temperature management

During the fruit expansion period, the temperature difference between day and night should be appropriately increased, and the temperature of the greenhouse should be controlled between 28-30 degrees during the day and 18-20 degrees at night. Generally, the night temperature is stable above 10 degrees, that is, the inner canopy will be removed at the end of March or early April. When the temperature is slightly lower, the canopy can be closed at 4 o 'clock in the afternoon. The tuyere shall be closed first. When the outside temperature is high, the canopy shall be gradually postponed to about 5 o' clock or later. This can open the temperature difference between day and night as much as possible, promote the accumulation of sugar in fruits, and improve fruit quality.

2. Fertilization

Fertilizer and water management is very important in muskmelon expansion period, so it is necessary to apply topdressing for many times. Generally, fruit thinning is carried out in time when young fruit grows to egg size after fruit setting, and then the first fertilization is carried out, while the weak growth is generally applied with the second fertilizer 10 days after the first fertilization. The nitrogen content of the first fertilizer is higher, and the potassium content of the second topdressing is higher. Generally, 10-15 kg of ternary compound fertilizer is applied per mu, while water-soluble high-potassium fertilizer or flushing fertilizer is used according to the packaging instructions. Furrow irrigation and drip irrigation can be used when fertilizing. Furrow irrigation is generally long to short and unloaded one section at a time. Generally, fertilizer water is pumped until the furrow is full and permeates into the ridge surface; while drip irrigation is to dissolve fertilizer and apply it from the dropper. Generally speaking, drip irrigation is better than furrow irrigation. Ventilation should be paid attention to after furrow irrigation to avoid diseases caused by excessive air humidity.

3. Reasonable fruit retention

In the second batch of fruit setting is generally carried out 20-25 days after the first batch of fruit setting. At this time, it depends on the growth of melon vines to determine the number of fruits left. Generally, each plant with strong growth can leave 2 fruits, while it is recommended to leave one fruit for weak growth. This can promote or advance the fruit setting of the third batch of melons and prevent premature aging of plants.

4. Harvest

The harvest standard of muskmelon is when the sugar content reaches the highest point but the flesh has not become soft, and whether different varieties have fully demonstrated the characteristics of the variety should be considered when harvesting, and it should be determined according to the actual maturity. In order to facilitate harvesting, pollination time can be used to mark, but also can see the color change of leaves after fruit setting, when the leaves turn yellow, withered coke, choose the morning below 20 degrees when there is no dew on the surface of the cut melon for harvesting.

The above is the greenhouse melon fruit after the management technology introduction, I hope to help you, want to know more about the relevant knowledge, please pay attention to us.