Winter melon planting: how to prevent winter melon cracking fruit?

How to prevent and cure wax gourd cracking? Please introduce the causes of fruit cracking of wax gourd: high temperature, hot sun, drought, rainstorm and unequal watering in summer are the main causes of fruit cracking of wax gourd and Jiegu, especially in case of showers and rainstorms, which cause the disturbance of root physiological function and hinder the normal absorption or operation of boron. After 3 to 6 days, fruit cracking occurs. In the process of fruit development, in the early stage, due to the drought of soil or air, the moisture in the fruit is evaporated and lost by the leaf surface, and the growth of the epidermis is suppressed. when there is sudden rainfall or excessive irrigation, the growth of the pericarp can not catch up with the swelling and pressure of the pulp tissue, resulting in cracks on the fruit surface, which will increase and deepen due to too much water. Therefore, during the fruit expansion period, the dry and wet change is the main cause of fruit cracking. In addition, the hot sun shines directly on the fruit surface, the fruit surface temperature increases or the fruit ripens excessively, and the pericarp aging can also produce fruit cracking. The degree of fruit cracking is mainly related to the following factors: first, it is related to the strength and extensibility of fruit epidermis, that is, it is restricted by the thickness of parenchyma cells in fruit epidermis, but has no obvious relationship with fruit firmness and Pectinase activity in pulp. Second, it is related to the species and varieties of melons and fruits. Third, it is related to cultivation techniques. In the production, the well-managed melon orchards grow vigorously, the vegetative growth and reproductive growth are more coordinated, and the fruit cracking is less; the plant growth is poor, and the nutritional status of stems, leaves, roots and plants is poor until the fruit cracking is common in the late harvest period. The prevention and control methods of wax gourd fruit cracking are as follows: (1) select crack-resistant varieties. (2) in rainy areas or rainy seasons, the cultivation methods of deep ditch and high border or ridging and scaffolding should be adopted. (3) increase the application of organic fertilizer, increase soil water permeability and water retention, make soil water supply uniform, root system developed, branches flourish, pruning in time to make the fruit develop normally and reduce fruit cracking. (4) there are few thick-walled cell layers in the pericarp at the top and on the ground of wax gourd and Chieh-qua fruit, which can be reversed to promote fruit development in cultivation. (5) timely harvest to reduce the number of cracked fruits. (6) spraying 0.1% zinc sulfate or copper sulfate during fruit expansion if necessary can improve heat resistance and crack resistance. In addition, 15 × 10 ~ (- 6) gibberellin or indole acetic acid or 30 × 10 ~ (- 6) naphthalene acetic acid was sprayed after petal shedding, once every 7 days for 2 or 3 consecutive times. Click to get more wax gourd planting techniques click to get more vegetable planting techniques