Effects of Application Rate of Nitrogen, Phosphorus and Potassium in Loess Soil on Yield and Quality of Yunyan 87 and Its Recommended Formula

唐, 越岳

doi:10.12677/jocr.2023.112009

JOCR

2023

DOI: 10.12677/jocr.2023.112009

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Effects of Application Rate of Nitrogen, Phosphorus and Potassium in Loess Soil on Yield and Quality of Yunyan 87 and Its Recommended Formula

越岳唐

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2024

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Efficiency Analysis and Evaluation of Variable Fertilizer Spreading Based on Realtime Spectral Information on Wheat

CHEN,

CHANG,

JIN

et al. 2024

INMATEH

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Studying the effect of variable fertilization during the jointing stage on winter wheat production in the rice-wheat rotation area is critical for evaluating the application effect and economic benefits of variable fertilization technology. The variable fertilization experiment of wheat was carried out in Jiangsu province by using the self-developed fertilizer applicator. Three fertilization methods were used to conduct a comparative analysis of the fertilization amount, population structure, and yield of winter wheat during the jointing stage. On this basis, the economic feasibility of variable fertilization during the jointing stage was evaluated. The experimental results showed that the control accuracy of variable-rate fertilization with fertilization equipment was greater than 95%. After variable fertilization, the coefficient of variation of NDVI values in the winter wheat canopy spectral data remained between 0.076 and 0.125, and the Christensen uniformity coefficient remained between 0.901 and 0.940. Compared with the traditional empirical balance method for quantitative fertilization of plots, the real-time variable fertilization plot used 13.6 kg/hm2 less fertilizer during the jointing stage. The findings validate that implementing variable fertilization can help reduce nitrogen fertilizer input, improve nitrogen fertilizer utilization efficiency, reduce environmental pollution, and enhance the sustainability of agricultural production.

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Efficiency Analysis and Evaluation of Variable Fertilizer Spreading Based on Realtime Spectral Information on Wheat

CHEN,

CHANG,

JIN

et al. 2024

INMATEH

View full text Add to dashboard Cite

show abstract

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Effects of Application Rate of Nitrogen, Phosphorus and Potassium in Loess Soil on Yield and Quality of Yunyan 87 and Its Recommended Formula

Cited by 1 publication

References 5 publications

Efficiency Analysis and Evaluation of Variable Fertilizer Spreading Based on Realtime Spectral Information on Wheat

Efficiency Analysis and Evaluation of Variable Fertilizer Spreading Based on Realtime Spectral Information on Wheat

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