The Phnom Penh soil element belongs to the family Aphididae and the subfamily. Also known as the Oriental scorpion, the variety is excellent, the reproduction and growth are fast, the feeding method is relatively simple, the artificial breeding cost is low, and the product sells well. Now introduce the technology of farming in Phnom Penh.

1. Preparation for the breeding grounds and pottery tanks in Phnom Penh.

The old rural houses are cleaned and disinfected. As long as they can be shaded and sheltered from the rain, they should be placed in a pottery tank to raise the Phnom Penh. The pottery cylinder generally has an outer diameter of 49 cm and a height of 58 cm. Level the site, put a basin, place the pottery on the basin, and then place 3-4 layers of bricks in the pottery jar (to leave space) to absorb moisture and adjust the humidity, then place a 30 cm high stone on the brick. Can be placed in the nursery. In order to avoid the escape of the Phnom Penh earth elements or natural enemies, the cylinder mouth should be covered with a mesh cover.

Second, the density of stocking in Phnom Penh.

General stocking is the trapping of wild Phnom Penh soils, requiring most adults to become adults, and will soon be able to lay eggs. Therefore, only 100-150 can be stocked per cylinder.

Third, feed and delivery methods.

Phnom Penh soil elements are omnivorous insects, like wheat bran, rice bran, bean cake, bean dregs, etc. also eat a variety of green grass, vegetable leaves, melon peel and other green feed. The fried wheat bran, rice bran, bean cake and bean dregs can enhance their appetite, and the green fodder must be kept fresh and clean. The Phnom Penh soil element is an insect that crouches at night, and the feeding time should be in the evening, and the feeding amount should be appropriate. Usually, the material is added once a day in the evening, and the feed residue is observed in the morning on the second day. If it has been eaten clean, it should be increased in the second day. It is necessary to remove the remaining materials in time to prevent mildew.

Fourth, the appropriate temperature and humidity environment.

Temperature is an important condition for the growth of aphids in Phnom Penh, preferably 20-35 °C. When the temperature is below 15 °C, the activity is weak; when the temperature exceeds 38 °C, attention should be paid to ventilation and cooling. The humidity in the cylinder must be strictly controlled, generally about 75% relative humidity.

5. Prevention and control of natural enemies and pests and diseases.

xx 金边土的天敌主要是蚂蚁，所以盆必须放在水箱下面以防止蚂蚁入侵，石灰可以喷在盆外。陶器罐，砖块，石块等必须先暴露在阳光下并进行消毒。应该进行严格的检查。不要将螨虫带入水箱;严格控制饲料，麦麸，米糠和豆饼必须用微火煮熟，这样可以杀死死螨，也可以使饲料具有香气，刺激金边的食欲。

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