莲雾化肥减施增效技术应用效果研究

为发展生态循环农业,推进农业绿色先行先试支撑体系建设,开展莲雾化肥减施增效技术应用试验,在每亩化肥使用量减少5%以上的基础上实现莲雾化肥减施增效。本研究以三亚南鹿农庄莲雾为试材,常规种植管理为对照,设置了有机无机复合专用肥部分替代化肥、专用型莲雾炭基肥部分替代化肥、有机肥部分替代化肥、生物有机肥部分替代化肥以及全程智能水肥一体化试验区,并观测莲雾产量、肥耗、单果重、SPAD值、优等果率以及果实品质。结果表明,化肥减施条件下,与常规施肥处理相比,所有减肥处理均能提高莲雾单果重以及莲雾产量,其中在化肥减少17%的条件下,生物有机肥部分替代化肥处理的产量提高了31.8%,单果重提高了8.7%,可溶性固形物提高了57%,肥耗降低了37.1%,其化肥减施增效效果最好。

Study on application effect of chemical fertilizer reduction and efficiency improvement technology of wax apple

In order to develop ecological circular agriculture and promote the construction of agricultural green pilot support system, the application experiment of wax apple chemical fertilizer reduction and efficiency technology was carried out, and the efficiency of wax apple chemical fertilizer reduction was realized on the basis of reducing the use of chemical fertilizer by more than 5% per mu. In this study, the wax apple of Nanlu Farm in Sanya was used as the experimental material, and the conventional planting management was used as the control. The organic-inorganic compound special fertilizer partially replaced chemical fertilizer, special wax apple carbon-based fertilizer partially replaced chemical fertilizer, organic fertilizer partially replaced chemical fertilizer, bio-organic fertilizer partially replaced chemical fertilizer and the whole process intelligent water and fertilizer integration experimental area. The yield, fertilizer consumption, single fruit weight, SPAD value, excellent fruit rate and fruit quality were observed. The results showed that under the condition of reduced application of chemical fertilizer, compared with conventional fertilization treatment, all weight loss treatments could increase wax apple weight and wax apple yield, and when chemical fertilizer was reduced by 17%, the yield of bio-organic fertilizer partially substituted for chemical fertilizer increased by 31.8%, single fruit weight increased by 8.7%, soluble solids increased by 57%, fertilizer consumption decreased by 37.1%.