Cultivation techniques for successful introduction of excellent pineapple varieties in Hainan

"the appearance of Tainong No. 16 pineapple, which can be grown all year round, is no different from that of ordinary pineapples, but there is no need to carve fruit eyes. It can be sliced and eaten like watermelon." Hua Min, a researcher at the Tropical Fruit Research Institute of the Provincial Academy of Agricultural Sciences, said that they have solved a series of problems such as the easy formation of water-stained pineapple and low commercial fruit rate. The pineapple has delicate flesh and is easy to eat.

According to Hua Min, the Tropical Fruit Tree Research Institute and the Institute of Environmental and Plant Protection of the Chinese Academy of Tropical Agricultural Sciences jointly undertook the project of "introduction, trial and matching cultivation techniques of fine pineapple varieties" in 2002 to introduce fine pineapple varieties suitable for the climate and soil of our province. At present, the pineapple variety Tainong 16 and its supporting cultivation techniques have won the first prize for the transformation of scientific and technological achievements in Hainan Province in 2015.

"when Tainong 16 pineapple was first introduced to Hainan, although the plant was tall and vigorous, it was difficult to flower out of season." Hua Min continued that its fruit quality is also affected by soil, water, fertilization management and other factors, once improper cultivation and management, it is very easy to form water-stained pineapple, affecting the economic benefits of pineapple.

In order to solve the problem that it is difficult to regulate and promote flowers during childbirth, the researchers have developed techniques for regulating flowering, such as using different chemicals in different seasons, using ethylene in low temperature and drought, and using calcium carbide plus ethephon or calcium carbide in high temperature and drought. After year-by-year research, the tropical fruit institute has realized the artificial regulation of Tainong 16 pineapple to promote blossom and produce fruit every year. In addition, the researchers also used plastic film mulching plus plastic film sprinkler irrigation cultivation, fruit bagging and other techniques to develop a suitable amount and ratio of fertilizer for the growth of pineapple, gradually solving the problems caused by improper fertilization, such as too many water-stained pineapples, poor fruit quality, low commercial fruit rate, and so on.

"after the improvement, the cost-saving and efficiency of pineapple planting can now reach more than 2600 yuan per mu." Hua Min said that at present, Tainong 16 pineapple and its supporting cultivation techniques have been popularized and applied in cities and counties such as Haikou, Chengmai, Qionghai, Wanning, Wenchang, Changjiang, Ledong, and Danzhou, with an average yield of more than 3 tons per mu and an output value of more than 20,000 yuan.