Organic zucchini is a variant of the genus Cucurbitaceae. It is native to China and cultivated in Guangdong, Guangxi, Hainan, Fujian, Taiwan and other places. It is one of the specialty vegetables in China. The melon is mainly served with soft and smooth tender melon. The old melon can also be eaten. It has the effects of clearing heat, detoxification, diuresis and swelling. It is an important variety of Cantonese cuisine. Here are some key points for the cultivation of organic melons:
Cultivation Techniques
The organic zucchini is self-sowed until the end of harvesting for 90 to 120 days. Among them, the planting is 50 to 70 days from the initial flowering, and the harvesting period is 45 to 60 days. The growth and development process of squash is the same as that of melon, which is divided into seed germination stage, seedling stage, vine vine stage and flowering result stage.
Seed germination
In the appropriate season, the seed germination period is about 5-7 days. The organic zucchini seeds are easy to germinate. Generally, they are soaked in warm water of 40-50 ° C for 10-15 minutes. After the water temperature drops to room temperature, the immersion is continued for about 5 hours, and the germination is started at a temperature of about 30 ° C. The germination starts in about 36 hours. Most of the germination occurred in 48 hours. Seeds are germinated and germinated. The temperature is unearthed at around 25 °C, and the cotyledons are unfolded in 4-5 days. If the temperature is around 15 °C, the cotyledons can be unfolded for more than 10 days. At this time, the cotyledons are small and thin, and the utilization rate of light energy is low, which is not conducive to the normal growth of the plants.
Seedling stage
The cotyledons spread to the sixth and seventh true leaves, and the tendrils were taken out at the seedling stage. The seedling stage varies depending on the variety and cultivation season, and is generally about 25 days. The plants in the seedling stage grow upright and the leaves are small, mainly based on the root growth of the underground.
Pumping period
The pumping period of organic zucchini usually takes about 10 days. The length of the vine-growing period varies depending on the development of the plant. If the development conditions are suitable, the buds can be budded without vines, and there is no vine period or a short vine period. After entering the pumping period, the plants begin to accelerate growth, and the fertilizer and water supply should be appropriately increased.
Flowering result period
After the plant is budded, it enters the flowering result period, which takes about 40-60 days. In the flowering stage, vegetative growth and reproductive growth occur simultaneously. Organic squash flowering usually begins in the first 3-5 section of the main vines; after several male flowers, the first female flower occurs. The number of the first female flower varies depending on the variety and environmental conditions, most of which are 5-15 knots. Most plants regenerate female flowers at intervals of 5-7 knots, sometimes two female flowers occur in succession, and 5-7 female flowers usually occur before the 50th section of the main vine. The ratio of male and female flowers varies with the growth period. The rate of female flowers in the early stage is lower, slightly higher in the middle stage, and higher in the later stage. The lateral vines of the squash are younger than the female flowers. Generally, the female flowers are differentiated in the first 1-2th section, and then the males and females alternately occur, which is basically the same as that of the main male and female male flowers. If the plant stays on the side, the female flower rate will increase; at the same time, the female flower of the side vine will account for a large proportion of the female flower of the whole plant. These vary depending on the variety and environmental conditions.
The length of the organic squash growth period varies depending on the cultivation season and cultivation techniques. The spring festival melon has the longest growth period, the summer festival melon is slightly shorter, and the autumn festival melon is the shortest. Proper cultivation and management can prolong the growth period, especially the flowering period and increase the yield.
The flowering results of organic zucchini are closely related to the growth of plants. In the growth and development of organic melons, there are vine leaves growing. The basic trend of vine leaf growth is: slow growth before the seedling stage, accelerated growth during the germination stage, and rapid growth during the flowering stage. Among them, the initial fruiting period is the fastest, and the growth rate is gradually reduced (see table). It can be seen that the growth of melon leaves has only a preliminary basis before the flowering result, and it only grows after the flowering result. From the functional leaves of various stages of organic melons, when the seedling stage has 7 leaves, the main functional leaves are the 2-5 leaves; the 11th leaves in the vine stage, the main functional leaves are the 3-8 leaves; after entering the flowering results 28 leaves in full bloom, the main functional leaves are 3-24 leaves; 39 leaves in the initial fruit stage, the main functional leaves are 5-33 leaves, 54 leaves in the fruiting stage, the main functional leaves are the 8th to 45th leaves That is, during the flowering result, the main functional leaves are the 5-40th leaf. The growth and assimilation efficiency of these leaves are closely related to flowering results and fruit yield.
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