First, read the English article below.

It may be difficult to find packaged lentil seeds at your local garden center. You may need to go to a specialty garden retailer or purchase from an organic seed business online. However, for planting purposes, any whole, dry lentils that you find in the grocery store will work just fine. Split lentils will not work, so be sure to get whole lentils. Place the seeds into a colander and rinse them with a bit of water. Pick out and throw away any that are broken, cracked, or discolored. Lentils thrive with the cool, crisp weather of March. Then, they reach maturity in the hot temperatures of summer. To keep your seeds alive, the ground temperature will need to be at least 40 degrees Fahrenheit (4 degrees Celsius) when you plant. If you have a frost after planting, don’t worry as most seedlings will survive this, even if they have to restart from the roots. If you want more flexible planting options, lentils can also be planted indoors as long as the room temperature is kept around 68 degrees Fahrenheit (20 degrees Celsius). In colder seasons, some people use indoor garden lighting to maintain a consistent temperature. Lentils grow well in both open gardens and containers. The key is to provide the plant with plenty of full sunlight. It helps to plant them alongside low lying plants so that the lentils are not overshadowed. Make sure that the soil stays moist without accumulating standing water on the top, as that can rot out the roots.  If you choose to plant your lentils in a container, choose one that is at least 8 inches (20 cm) deep to allow for full root maturity.  If you are concerned about the acidity or alkalinity of your soil, get a quick pH test from the garden store. Lentils grow well in the pH range of 6.0 to 6.5. 

Now, please write a short abstract for it in Vietnamese. Abstract:
Mua hạt giống hoặc đậu lăng khô. Rửa và phân loại hạt. Gieo trồng cây vào đầu mùa xuân. Chọn vị trí nhiều nắng và thoát nước tốt.