Yeŋö ye nafa ye Silver Black Earth looi? Silver black earth membrane silver face up, black face down, silver face has a reflective effect, in high temperature sun can reduce the sun's light to prevent soil high temperature, silver face by the sun's light reflecting on the back of the crop's leaves so that the aphids can't survive under the leaves, thus playing a role of insect protection. A ye kɛ̈ɛ̈r ye kɛ̈ɛ̈r ye kɛ̈ɛ̈r ye kɛ̈ɛ̈r ye kɛ̈ɛ̈r ye kɛ̈ɛ̈r ye kɛ̈