Detailed Explanation of Flowering Regulation and Industrialization Technology for Dendrobium Orchids

1. Technology Introduction This technology is applied to flowering regulation and large-scale production of potted and cut-flower varieties of Dendrobium orchids. The flowering regulation technology is the core technology. It involves providing good nutrient reserves during the vegetative growth period, promoting vegetative growth and delaying reproductive growth. After the first flower buds of Dendrobium orchids emerge, the timing for removing the flower buds is determined according to the climate of that year and the specific circumstances of the Spring Festival period. Then, temperature control and fertilizer-water forcing techniques are used to promote secondary growth of the flower buds, so that during the Spring Festival half of the buds in the entire inflorescence openflowersthe goal. In addition, research was also carried out on issues such as light, temperature, humidity,cultivationsubstrate,pests and diseasesand other problems encountered during the industrialized planting process of Dendrobium orchids, and a complete set of industrialized production management technology was summarized. Through this technology, 300,000 tissue-cultured seedlings and more than 50,000 finished potted flowers have been produced, reaching a certain scale of industrialization.

The equipment invested includes: for ordinary growers, in areas without frost throughout the year, a simple plastic film greenhouse is sufficient; for growers targeting the Spring Festival as the flowering period, a water curtain fan cooling system and a 60%-70% shading system are required, so that the greenhouse has good ventilation and cooling in summer and good insulation in winter. The growth and development of Dendrobium orchids generally require relatively high temperatures throughout the year, and the Pearl River Delta is located at the junction of the tropics and subtropics, possessing the natural conditions for large-scale production of Dendrobium orchids, and there are many inexpensive substrates suitable for cultivation, with low consumption of various required resources. This technology can not only enhance the international competitiveness of our country's high-grade flowers and give full play to the heat resource advantages of Guangdong Province, but also open up a new way for agricultural export earnings and drive the scale-up and high efficiency of our country's flower industry, producing very significant economic benefits.

2. Economic Benefits For the industrialized production supported by this technology, calculated at an annual output of 30,000 potted flowers per 667 sq m, with an average price of 30 yuan per plant, the annual output value of potted flowers is 900,000 yuan per 667 sq m, and after deducting costs, a profit of 600,000 yuan can be obtained per year. Fresh cut flowers yield 100,000 stems per 667 sq m, calculated at 2.0-3.0 yuan per stem, with an annual output value of 200,000-300,000 yuan per 667 sq m, and after deducting costs, a profit of 150,000-200,000 yuan per 667 sq m per year can be obtained.

3. Applicable Regions South China.

4. Promotion Methods Promotion is carried out through product outreach and technical training.