红心火龙果品质及产量对稻壳有机肥施用量的响应

本研究通过探索红心火龙果营养品质和产量对稻壳有机肥施用量的响应,旨在为红心火龙果的施肥管理提供参考.以5年生'台农二号'红心火龙果为供试材料,设置3个稻壳有机肥施用水平(低施肥量L:22500 kg/hm2;中施肥量M:45000 kg/hm2;高施肥量H:90000 kg/hm2),调查火龙果全年各批次果实的还原糖、...

Response of Quality and Yield in Red Pitaya to Change in Amounts of Chaff Organic Fertilizer

The objective of this paper is to evaluate the response of quality and yield in red pitaya to different amounts of chaff organic fertilizer to provide the theoretical foundation for red pitaya planting with chaff organic fertilizer. A field experiment was conducted to evaluate the performance of five-year-old ‘Tainong No.2’ red pitaya under three levels of fertilization amounts. The following fertilizer treatments were applied: (1) low fertilization amounts (L) at 22 500 kg/hm² chaff organic fertilizer, (2) moderate fertilization amounts (M) at 45 000 kg/hm² chaff organic fertilizer, (3) high fertilization amounts (H) at 90 000 kg/hm² chaff organic fertilizer. Reducing sugar, soluble protein, vitamin C (Vc), soluble solids, anthocyanin, and fruit yield were compared. The fruit quality, fruit number, and yield in some batches of red pitaya were significantly different among the three treatments. In batches with significant differences, the increase in fertilization amounts significantly increased anthocyanin, soluble solids, Vc, edible rate, fruit number and yield. Compared with L treatment, the anthocyanin content in the July 19 batch in M treatment significantly increased by 5.59%; the soluble solid in the September 6 batch in H treatment significantly increased by 6.95%; the Vc content in the October 23 batch in M and H treatment significantly increased by 24.11% and 14.29%; the fruit number in the September 6 batch in M and H treatment increased by 372.73% and 172.73%; the yield in the September 6 batch in M and H treatment increased by 373.44% and 165.63% (P<0.05). However, reducing sugar and soluble protein significantly decreased with the increasing fertilization amounts (P<0.05). The profitability of fertilization amounts in 22 500 kg/hm² was the best among the three treatments, and this fertilization practice was relatively good at nutritional quality and edible rate of red pitaya fruit. The results suggest that the application amounts of chaff organic fertilizer significantly improve the quality and edible rate of red pitaya fruit.