Because wild ginseng is so valuable, poachers are common in regions where it is grown. Fencing off the area won't deter someone who knows the ginseng is there, but it may prevent people from discovering the site. A loud dog may be an excellent thief deterrent. Ginseng that grows too close together may spread disease between plants or compete with each other for nutrients. Consider removing or transplanting plants after the first growing season to get down to 6 plants per square foot (65 per square meter), and again after the second year of growth down to 1 or 2 plants per square foot (11 to 22 per square meter). You may also plant ginseng in other areas each year during the fall to develop an ongoing harvest. Many growers do this so they have mature ginseng to harvest each year after the first batch matures. One major advantage to the wild-simulated method is a reduced risk of pest and disease, due to the wider spacing. While a few plants or berries may be eaten occasionally, you are unlikely to lose many of the valuable roots, and diseases shouldn't spread between plants at a high rate. If you do encounter a problem, contact your local wildlife department for information about ginseng pesticides. Keep in mind that you may lose your organic certification or your credibility in selling wild-simulated ginseng if you use pesticides. You'll need to wait about 7 to 10 years for your plants to mature into large, valuable roots, but with the right site and a little luck. Growing ginseng with the wild-simulated method requires a lot of patience, but almost no maintenance. Check periodically to see if the ground remains moist and covered with a small amount of leaf litter. If your ginseng is planted densely, harvest after 4 years or the roots might begin to dwindle These roots will not be as valuable, however. The part of the ginseng plants above the surface will die back in the autumn, but grow again in the spring. It will grow bigger each time, and all the while, the root below will be growing larger. Once the...

How would you rephrase that briefly using Vietnamese?
Giữ bí mật và bảo vệ nơi trồng. Bỏ bớt cây những cây nhân sâm mọc dày mỗi năm. Nghiên cứu kỹ trước khi dùng phân bón và thuốc diệt sâu bệnh. Chờ đến khi cây trưởng thành. Cây sẽ không mọc quanh năm. Thu hoạch quả mọng đỏ sau năm thứ ba. Thu hoạch cây trưởng thành vào bất cứ thời gian nào sau năm thứ 7. Đào cẩn thận để không gây hại đến củ. Rửa và để khô nhân sâm.