Sunlight Greenhouse Spring Melon Field Management

1, pruning hanging vines. Spring sorghum melon cultivation using single vine pruning, leaving the main vine growth. Plants that grow vigorously can remove all the lateral branches occurring above the cotyledonary node, leaving only 3-4 lateral vines at the node of fruit setting. If the melon growth is weak, 5-6 side vines above the cotyledonary node can be preserved, and the remaining side vines can be removed to the side of the fruit setting and leave the side vines again. When the remaining base vines spread 2-3 leaves, the head was knocked off. This can effectively increase the nutritional area of ​​plants, enhance the growth of melons, and promote root growth. Male flowers, rolls must be removed at any time to reduce nutrient consumption. If there is a lack of seedlings, double vine pruning can also be used for growth.

2, temperature management. Melon grows at 25-30°C during the day and 15-18°C at night. Temperatures above 32°C or below 10°C are detrimental to fruit set and fruit enlargement. The minimum temperature during the fruit ripening period can be controlled at 10-12°C, increasing the temperature difference between day and night to increase the sugar accumulation in the fruit.

3, set fruit, hit the leaves. Melon can be treated with high-yielding agent No. 2 with water 400g for hormone treatment or artificial pollination at 8-10 am. After melons sit fruit, with the growth and development of melons, the lower leaves gradually aging, no longer has the function of photosynthetic accumulation, and affect the ventilation and light transmission. The lower old leaves should be destroyed in time, but not too early.

4. Choosing the location of melons and choosing melons. Zuogua melons are low, the fruit is small, and the yield is low. The melons are high in section and have large fruits, but their sugar content is low. In general, the melon fruit set is located between 10-15 leaves. When young walnuts are large, one or two melons of Zhou Zheng’s melons are selected and the rest are removed. There are 2-3 pieces of melon seeds before the seeds are picked. Increase the nutritional area near the fruit to facilitate the photosynthetic product to be transported to the fruit. Melons usually stay single. Leaving the double squash should be the same fruit size, adjacent to the node and fruit as far as possible.

5, water and fertilizer management. After 5 days 7 to 7 days after the emergence of the melons, the seedlings were watered, and the vines were watered depending on the soil conditions and the growth of the melons. If the melon grows weak, Mushi 5kg can be applied. Flowering, pollination, fruiting period generally do not need watering, so as not to cause stems and leaves prosperous adverse to fruit set. After the melons are generally set, the melons will be swelled with melon water at the size of the eggs and will be topped with 30-35 kg of potassium sulfate compound fertilizer with 15% N, P and K content per mu. In addition, the foliar fertilizer should be sprayed on the leaves for several times. Usually, about 0.3% potassium dihydrogen phosphate is sprayed for about 10 days to increase the yield and quality of the melon.

Industrial Laser Distance Sensor

Industrial Laser Distance Sensor, we also call it secondary development laser distance module, which support TTL level and CMOS. The laser range sensor can be widely used in professional surveying, mapping, construction, robots, hunting arrows, industrial monitoring and automated measurement applications in electricity, transportation, etc. Our laser distance module supports data communication with RS232, USB with a simple adapter. The results of laser distance sensor can be evaluated with Arduino. We are always looking ahead, hoping we can make every measurement simple in life!

Parameters of M703A:

Laser Distance RS232,Arduino Distance Module,Laser Module RS232

Chengdu JRT Meter Technology Co., Ltd , https://www.accuracysensor.com