What if Hainan jackfruit blooms in cold weather?

It can be wrapped in straw, then wrapped in plastic bags, and finally tied to the base of the fruit.

Make a few holes in the bottom of the plastic bag to let all kinds of water vapor flow down. It should be noted that don't make holes in the top, because the density of hot air is low, so it is rising. If there is a hole in it, all the hot air will run away, which is not conducive to the warm-keeping effect.

As the jackfruit grows bigger and bigger, the original warm bag for protection can no longer hold the huge jackfruit. At this time, it is necessary to change the bag and increase the use of straw or cloth with warm effect.

In addition to the above protective measures, proper spraying of antifreeze and foliar fertilizer can increase the cold resistance of jackfruit, and the foliar fertilizer is mainly potassium dihydrogen phosphate. If freezing injury really happens, whether it is branches, young fruits or big fruits, it should be disposed of in time, and preservation will increase the nutrient consumption of fruit trees.

Pest control:

During the fruit expansion period, the orchard land must be deeply ploughed to loosen the soil, promote root development and improve root absorption function; During the growing period, orchard should pay attention to scientific fertilization, the application of decomposed organic fertilizer, actively adopt soil testing formula fertilization, reasonably match N, P and K fertilizers, appropriately increase the application of calcium fertilizer, and at the same time increase the application of bio-organic fertilizer to avoid the influence of excessive soil moisture on calcium absorption.

When the soil is short of calcium, 50-70 kilograms of quicklime can be applied to each mu of land. In addition, foliar spraying humic acid solution with 0.5% calcium chloride is better. After a long drought, water the orchard in time to avoid the rapid expansion and cracking of the fruit caused by sudden rainfall. Pay attention to field drainage in rainy season to prevent the orchard from cracking due to calcium absorption by waterlogging.