Don't fertilize the soil with too much water. Too much water will cause poor air permeability of soil, leading to yellowing and suffocation of roots. It is very important to hoe properly, cut off the air roots above and tie the roots down. If it is a perennial crop, if it is a tree, the root system also needs to be moderately updated and pruned, because the white root that exercises the absorption function has a long life. By cutting roots moderately, the formation of multiple growth roots can be stimulated again, and the subsequent growth roots will turn white again.

In the case of a large amount of manure, if the rotary tiller is used to turn over the soil, when the turning depth is shallow (less than 20 cm), a large amount of manure is concentrated in the soil layer of 0-20 cm on the surface, which has a great influence on the root system of crops. Reasonable fertilization can ensure the content of available nutrients in the soil, but at the same time, it can't cause excessive fertilizer damage, let alone burn seedlings. Whenever there is a drought, the crops will wither. Once it rains or is irrigated, the seedlings will soon become slow and grow very vigorously. If the field is dry for a period of time and it rains again, it is quite beneficial to the roots of crops.

It can be covered with black plastic film to keep the ground temperature and raise roots. Crop roots need to be constantly updated. Low soil temperature causes the root system to stop growing and the root system is easy to age, so it is very important to cover the soil with plastic film to keep warm! Proper pruning of plant crown, timely removal of invalid branches and leaves, reduction of consumption and centralized supply of root nutrition are also conducive to promoting root growth. Rooting, nourishing land and balanced nutrition, it is suggested to apply suspended carbon liquid water-soluble fertilizer, which can promote the absorption and transformation of nutrient elements, improve the absorption and utilization rate of fertilizer, avoid fertilizer damage and affect the healthy growth of plants!

Prevent and control pests and diseases in time. Root rot, stem rot, Fusarium wilt and root-knot nematodiasis of crops seriously endanger the healthy growth of roots. For plots with serious soil-borne root diseases, rotation should be carried out, and soil disinfection should be carried out in time if slight diseases appear. Avoid using chemical fertilizers as soon as possible and use more organic fertilizers. The soil is loose and breathable, and the root system grows unimpeded. Only by maintaining the balance of nutrients needed by crops can crops have strong roots.