What if the fruit setting rate of litchi is low?

Litchi is a kind of fruit loved by consumers, and it is also one of the crops chosen by growers, but the fruit setting rate of litchi is low during planting, which seriously affects the yield of litchi. Is there any way to improve the fruit setting rate of litchi? Let's take a look at the break.

1. Release bees or artificial pollination

In litchi, dioecious crops can not be pollinated by themselves, but can only be pollinated through pollination medium. bees can be released or artificial pollination can be adopted when the climate is good, which can improve the fruit setting rate. Generally, 0.5-1 boxes of bees are released per mu and enter the garden 3-5 days before flowering, while artificial pollination can increase the causes of female flowers, achieve the effect of cooling and increasing application, and prolong effective pollination. Generally, the male flower spikes are collected in the early morning on a sunny day and filtered with clean water. Borax and anti-falling element are added. Mix it with water during pollination and spray it on the female flowers.

2. Shake branches and spray water

When it is cloudy and rainy in full bloom, shake the branches in time when it clears up after the rain, shake off the Rain Water on the ear of the flower, speed up the air-drying and powder of the flower, so as to avoid retting. If the female flower is in full bloom at high temperature and dry, the sugar on the stigma is sticky, which is not conducive to honey collection and pollination, so it can be irrigated and sprayed to increase humidity and reduce the consistency of sugar to facilitate pollination.

3. Disease prevention

In the third batch of male flowers blooming, such as high temperature, overcast and rainy weather, it is very easy to infect 1.8 meters, which will cause the male flowers to lose their vitality and cannot be pollinated. So to take timely measures to prevent, can be in the week before flowering, spray low concentration of carbendazim or methyl carbendazim prevention. It is necessary to shake branches in time after rain to speed up the drying of flower ears and reduce the probability of disease occurrence. When the disease is serious, it can be well mixed with carbendazim and powdered fillers in the proportion of 1 ∶ 9, wrapped with gauze bags and tied to the end of the bamboo pole, shaking the disease site, which can control the spread of the disease, and flower thinning can also control the disease.

4. Protect flowers and fruits

The flower and fruit can be protected 10 days after the female flowers are in full bloom or the young fruits are mixed with seeds, and the leaves can be sprayed with 50 grams of borax, 100 grams of urea, 50 grams of potassium dihydrogen phosphate and 50 kilograms of water. Spraying 100 grams of urea, 50 grams of potassium dihydrogen phosphate and 1.5 grams of Fanglu with 50 kilograms of water at the beginning of fruit growth can play an excellent flower and fruit protection technology and improve the fruit setting rate.

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