The soil temperature of the return-to-field group is lower than that of the control from March to June each year, which delays the flowering period of apples and avoids the influence of "cold spring" on apples
Every year from March to June, the soil temperature of the field group is lower than that of the control, which delays the flowering period of the apples and avoids the effect of the "reverse spring chill" on the apples
From March to June every year, the soil temperature of the returning group was lower than that of the control group, which delayed the flowering of apple and avoided the influence of "late spring cold" on apple<br>