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June 13, 2026AgronomyOpen Access

Effects of Different Nitrogen Fertilizer Management Modes on Maize Straw Decomposition and Soil Available Nutrients Under Shallow Buried Drip Irrigation

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Authors

YCYanting CaoLBLanfang BaiZCZhipeng Cheng

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Overview

Randomized trial examines nitrogen management impact on straw decomposition and soil nutrients in maize, suggesting improved fertilizer use strategies.

Key Points

  • This study aims to evaluate the effects of various nitrogen fertilizer management modes on maize straw decomposition and soil nutrient availability under drip irrigation.
  • Conducted a field experiment with five nitrogen fertilizer treatments: CK, 30%N, 45%N, 30%ON, and 45%ON.
  • Measured straw decomposition and nutrient release using nylon mesh bags and an exponential decay model.
  • Analyzed soil available nutrients in the 0–40 cm soil layer and assessed relationships using PCA.
  • The 30%ON treatment increased straw decomposition by 19.2% over CK, with a theoretical maximum decomposition rate higher than other treatments.
  • All treatments improved soil available nutrients, with 30%ON demonstrating increased nutrient release by 4.8% to 18.2%.
  • While initial yields were not higher, the 30%ON treatment exhibited significant yield advantages in the second year due to enhanced nutrient dynamics.

Cite This Study

Cao et al. (2026) studied this question.

synapsesocial.com/papers/6a2cf688faef96ed7f0583abhttps://doi.org/10.3390/agronomy16121147
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