Sowing before the emergence of seedlings in case of rain and snow weather soil knots, should be broken in time to ensure that the whole seedling. Hu Ma entered the fir stage for the first weeding and loosening the soil, the bud stage for the second weeding, and then depending on the weeds in the field, pull out at any time. Seedling stage attention to the prevention and control of golden tortoise beetle, bud stage attention to the prevention and control of aphids and thrips.

Mulching time is better in fall or spring. Mulching first soil leveling pat light, to achieve fine, flat, clean. With a 120 cm wide film mechanical or artificial full ground mulching. Artificial mulching according to the width of the film on both sides of a shallow ditch about 5 cm deep, sowing with no monopoly, the film is unfolded, pulled tight and straight. Membrane edge with soil compaction and flattening, every 2 to 3 meters on the membrane pressure of a soil belt, in order to prevent wind uncovering the membrane.