Cultivation techniques of summer zucchini

The so-called over-summer planting refers to a cultivation mode of sowing from the end of May to the first ten days of July and harvesting from the first ten days of July to the end of August, which can be divided into three modes: large cold shed, anti-insect net covering shed and open field. So, do you know the cultivation techniques of summer zucchini?

1. Cultivation techniques of summer zucchini

1. Variety selection

Select the varieties with strong resistance to virus. So far, there are no absolutely virus-resistant varieties. However, varieties with strong tolerance to toxicity have been screened. After trial planting in recent years, such as Xiaguan, Lufeng and Cuiyu all show the advantages of strong tolerance, green melon strips, long melon strips and so on.

2. Fertilization, soil preparation and ridging

It is necessary to apply adequate mature organic fertilizer: the degree of maturity of the fertilizer family determines whether it is an important factor in the disease, because immature fertilizer or chemical fertilizer is very easy to hurt the root and give birth to the virus, to see whether it is fat or not. Just take a look at whether the flies go up and down. If there is no rotten fertilizer, it is recommended that more Kun Yijian and other excellent microbial fertilizer work well. Dig deep into the soil. Deeply turn the activated soil layer to improve the permeability, which is conducive to rooting, and if the root is strong, it will be resistant to disease. Wide and high ridges should be formed. First, it is rainy in summer, which is conducive to drainage; second, ridging increases the thickness of mature soil layer and fertilizer, so that the root system is large. The general ridge height is 20 cm, the ridge width is about 1.5 meters, the ridge surface is flat, the ridge width is 50 cm (walkway operation line), 2 rows are planted on the ridge, the plant spacing is 90 cm.

3. Cultivate strong seedlings

If the seedling age is controlled at about 10 days, it can also be used for direct seeding after sprouting. It is necessary to apply sufficient bacterial fertilizer at the seedling stage, increase the temperature difference, sufficient light, and prevent diseases and insect pests in time. It is the key to achieve high quality and strong seedlings.

4. Strengthen coverage

The main ways of covering are silver gray film plus soil and firewood and grass. The practice shows that firewood grass is stronger than silver gray film to add soil, silver gray film to add soil is stronger than silver gray film, and silver gray film is stronger than open field. The thickness of the soil pressed on the silver ash film should be more than 2 cm. The main purpose of mulching is to moisturize, prevent hardening and produce weeds, which is important to prevent the occurrence of virus.

5. Pay attention to the prevention and control of diseases and pests

It is common to have diseases and pests such as bacterial leaf blight, Liriomyza huidobrensis and whitefly, which should be prevented as early as possible.

6. Watering management

Watering after covering can only be carried out in the ditch, and can only water half of the ditch water, do not water over the ridge surface, otherwise, the ridge surface hardening, easy to give birth to virus. As long as the ridge surface is loose and breathable, and the furrow is moist and not dry, it will drive away the virus and get a bumper harvest.