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枣果干物质少的主要表现是果肉少,果皮颜色呈红黄色,而不是正常的紫红色,表皮皱褶多,有的果肉与果皮分离。干物质少影响枣的质量,导致价格低,影响经济收益,造成增产不增收。一、枣果干物质少的主要原因 1.肥水管理不当 (1)不施基肥、不追肥、不进行叶面喷肥。枣树生长期短,从4月发芽到10月落叶,总共有150天左右的生长期。生长前期各器官形成,养分消耗很多。如果没施基肥,又不追肥、不进行叶面喷肥,树体自身贮存养分不够,又不能从外界及时补充,直接影响花芽分化和枣果发育。 (2)施基肥晚,追肥晚,施肥单一。枣树落叶后,根系活动减弱,此时施基肥不会使树体吸收、贮存足够的养分;追肥晚,待果到速生期再施,事倍功半;施单一的氮肥,没有混施
Jujube dry matter less the main performance is less flesh, peel color was red and yellow, rather than the normal purple, epidermal folds and more, and some pulp and peel separation. Dry matter less affect the quality of jujube, resulting in low prices, affecting economic benefits, resulting in increased production without increasing income. First, jujube fruit dry matter less the main reason 1. Fertilizer and water management improper (1) non-base fertilizer, no dressing, no foliar fertilizer. Jujube growth period is short, from April germination to deciduous leaves in October, a total of about 150 days of growth. The formation of various organs at the early growth stage consumes a lot of nutrients. If you do not base fertilizer, and not topdressing, without foliar fertilizer, the tree itself is not enough storage of nutrients, they can not be supplemented from the outside world, a direct impact on flower bud differentiation and jujube development. (2) late base fertilizer, dressing late, fertilization single. Jujube leaves, the root activity weakened, this time does not make the basement fertilizer to absorb the body, storage of adequate nutrients; dressing late, to be fruit to the fast-growing period of re-application, with less effort; single nitrogen fertilizer, no mixing