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2012—2014年在甘肃省秦安县,以17年生‘北京7号’桃为试材,探讨不同覆盖方式下袋控缓释肥对桃树新梢生长、叶片光合作用、产量和果实品质的影响,以期为半干旱浅山丘陵沟壑区省力高效施肥研究提供参考。结果表明,使用袋控缓释肥促进了桃树新梢生长,提高了叶绿素含量、光饱和点、净光合速率,增加了单果重和产量,对果实可溶性固形物、可滴定酸和维生素C含量影响不显著。因此,袋控缓释肥适宜在黄土高原浅山干旱区桃园推广应用,土壤覆盖材料首选麦草,其次为玉米秸秆,再次为地膜。
2012-2014 In 17th Anniversary of ’Beijing No.7’ Peach in Qin’an County, Gansu Province, the effects of bagging controlled release fertilizers on shoot growth, leaf photosynthesis, yield and fruit quality of peach trees under different coverage were studied , In order to provide a reference for the study of fertility and efficiency fertilization in semiarid hilly and gully areas. The results showed that the use of bag-controlled slow-release fertilizer promoted the shoot growth of peach trees, increased chlorophyll content, light saturation point and net photosynthetic rate, increased fruit weight and yield. Soluble solids, titratable acid and vitamin C content The effect is not significant. Therefore, the bag-controlled slow-release fertilizer is suitable for popularization and application in the Taoyuan area in the arid arid region of the Loess Plateau. The wheat straw is the preferred soil covering material, followed by the corn stalk and again the plastic film.