Narrow-leaf pineapple in Phnom Penh has strong adaptability, barren tolerance, drought tolerance and less pests and diseases. It is an important pioneer crop in newly cultivated mountainous areas, easy to cultivate, with high yield and intercropping and interplanting. It is a good tree species for developing hilly areas in the south, developing rural economy and making farmers rich.

Planting 3800 ~ 4000 pineapples in Phnom Penh requires a large number of seedlings. There are three commonly used methods, such as plastic germination, asexual reproduction and tissue culture. Time and method of accelerating germination: Choose plants with 40 cm green leaves from May to165438+1October, including 40 Cayenne and 35 Philippines. Each plant was irrigated with mixed solution of 250 mg/L ethephon and 25ml 1% urea and 0.5% potassium chloride to accelerate germination. On the 5th and 2nd day after treatment, 25 ml of plastic solution with the times of 1200 ~ 1500 and 600 ~ 750 were used to irrigate the roots respectively. Asexual propagation, common seedling raising, that is, using small terminal buds in the field.

The classification of small bud, small bud suction and fruit tumor bud heel went abroad after being cultivated in nursery. The small buds left on the fruit stalk after fruit picking are used for growth and seedling raising, and the old stems are used for cutting propagation. Tissue culture seedlings were cultured in Ms medium at room temperature of 30℃, illumination of 65438±02h or natural illumination.

The technical points of high-quality and high-yield pineapple in Phnom Penh are as follows: 1. Choose a good garden and a place facing south, with abundant sunshine, abundant water resources and convenient transportation as the commodity production base. Second, scientific planting, improving poor soil before planting and applying sufficient base fertilizer; Choose strong seedlings for planting. Density: 3000 ~ 4000 plants of Kane and 4000 ~ 5000 plants of Queen. Thirdly, the management of fertilizer and water should be strengthened after planting. The amount of fertilizer applied per mu in Guangxi is 42.2kg of nitrogen, 26.8kg of phosphorus and 38.5kg of potassium, with n ∶ P2O5 ∶ K2O =1∶ 0.62 ∶ 0.9; Fertilization period, generally from June 65438+February to February of the following year, apply bud-promoting fertilizer before bud picking, and apply strong bud fertilizer from July to August after fruit picking; Applying a strong fruit and bud promoting fertilizer between the bud promoting fertilizer and the strong bud promoting fertilizer; Apply foliar fertilizer once a year in April, June, July and September, and topdressing twice a year in May and August, with 1% urea and 0.5% potassium sulfate solution; Apply base fertilizer after fruit picking. Water conservancy management should be timely irrigation and drainage, flood control and drought relief. Fourth, do other management well, such as properly removing buds and leaving buds in order not to affect the growth and development of fruits; To promote flowers, we must promote flowers; In order to improve the weight and quality of the fruit, after all the florets withered, the fruit was sprayed with 50 mg/L gibberellin and 0.5% urea solution, and sprayed again 20 days later, and then sprayed with 70 mg/L gibberellin and 0.3% urea solution. In order to make the fruit mature evenly, when the fruit reaches the seventh maturity, 300 mg/L ethephon is used to accelerate the fruit ripening.