Nutrient Diagnosis and Precise Fertilization Model Construction of '87-1' Grape (Vitis vinifera L.) Cultivated in a Facility
文献类型: 外文期刊
作者: Wang, Haibo;Wang, Xiaolong;Liu, Chang;Shi, Xiangbin;Ji, Xiaohao;Wang, Shengyuan;Li, Tianzhong
作者机构:
关键词: formula fertilization;fruit quality;mineral elements;nutritional diagnosis;precise fertilization model
期刊名称: PLANTS-BASEL
ISSN: 2223-7747
年卷期: 2025 年 14 卷 21 期
页码:
收录情况: SCIE(2025版)
摘要: Rape is one of the most widely cultivated and highest-yielding fruit crops in the world. However, research on its precise nutrient diagnosis and fertilization theory is severely lacking, significantly restricting the development of the grape industry. In this study, an L16(45) orthogonal experimental design was applied to determine the effects of varying ratios of nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), and magnesium (Mg) on the fruit quality of '87-1' grape (Vitis vinifera L.) cultivated in a facility, aiming to optimize nutrient application rates and improve fruit quality. Among the treatments T5 (N2P1K2Ca3Mg4), T14 (N4P2K3Ca1Mg4), and T9 (N3P1K3Ca4Mg2), treatment T9 had the most significant effect on single fruit weight, total soluble solids (TSS) content, fruit firmness (FF), and fruit quality index (FQI) and was conducive to the positive accumulation of the above quality indicators. Based on a comprehensive multi-factor analysis of variance, the optimal fertilization combination for achieving a high FQI was N3P1K2Ca1Mg2, corresponding to application rates of 375.0, 0, 168.8, 0, and 70.5 kghm-2 for N, P2O5, K2O, CaO, and MgO, respectively. Furthermore, to establish standards for multivariate compositional nutrient diagnosis (CND) and define the nutrient sufficiency range for '87-1' grape fruit cultivated in a facility, the nutrient concentrations in various plant tissues and the soil and the FQI were measured across 80 treatments over five consecutive years. The nutritional status of the grapes cultivated under these treatments was calculated using the Technique for Order Preference by Similarity to Ideal Solution and the CND method. Based on the optimal nutrient ranges for high FQI sub-populations, a precise fertilization model was developed to facilitate economic fertilizer savings, quality improvement, and standardized grape cultivation in a facility.
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