行间生草对冀西北杏园果实发育期土壤水分及 果实产量、品质的影响.

In order to change the traditional soil management model of apricot orchard in Northwest Hebei province and explore the effects of grass between grows on soil moisture, in this study, the influences of grass between rows for 5 consecutive years on soil moisture, fruit yield and quality of Jinshuo apricot during fruit development period were studied with natural grass and alfalfa planting mode as treatments and cleaning tillage mode as the control(CK). The results showed that grass between rows could effectively increase the soil water content in 0-60 cm soil layer during fruit development period of Jinshuo apricot. Compared with the cleaning tillage mode(CK), the soil water content of alfalfa planting treatment was the highest at flowering stage, young fruit stage, and fruit expansion stage, which was 13.97%, 48.15%, and 40.23% higher than that of the cleaning tillage mode(CK), respectively. The soil water content of natural grass treatment was the highest at mature stage and post harvest, which was 23.07% and 26.45% higher than that of the cleaning tillage mode(CK), respectively. The soil water content of each treatment was the largest at young fruit stage and the smallest at fruit maturity stage during the whole fruit growth period of apricot. The effects of grass between rows were obvious on improving the fruit yield and quality of Jinshuo apricot, compared with CK, the single fruit quality of the treatments of alfalfa planting and natural grass increased by 8.16% and 5.28% respectively, and the single plant yield increased by 11.19% and 9.97% respectively. Compared with CK, the soluble solid content of the treatments of natural grass and alfalfa planting increased by 17.07% and 15.57% respectively, and the titratable acid content decreased by 20.79% and 16.83% respectively. Therefore, grass between rows could effectively improve soil moisture and fruit yield and quality in apricot orchard, it was suitable for large-scale extension in apricot orchard in Northwest Hebei. Considering from cost, natural grass was better than alfalfa planting. [ABSTRACT FROM AUTHOR]