Research on Water and Fertilizer Use Strategies for Silage Corn Under Different Irrigation Methods to Mitigate Abiotic Stress
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View abstract on PubMed
Summary
This summary is machine-generated.Optimized irrigation and fertilization for silage maize in the Yellow River Basin balances water scarcity and forage needs. A medium fertilizer rate and dynamic irrigation strategies improve crop yields and water savings, supporting sustainable agriculture.
Area Of Science
- Agricultural Science
- Environmental Science
- Hydrology
Background
- The Yellow River Basin faces increasing water scarcity and forage demand, impacting silage maize production.
- Optimizing irrigation and fertilization is crucial for sustainable agriculture in water-stressed regions.
Purpose Of The Study
- To optimize integrated irrigation and fertilization regimes for silage maize under water-fertilizer-heat stress.
- To evaluate the performance of drip irrigation with mulch (DIM) and shallow-buried drip irrigation (SBDI) systems.
Main Methods
- Utilized the AquaCrop model, validated with field experiments and 35 years of meteorological data.
- Quantified impacts of water, fertilizer, and heat stress on silage maize.
- Assessed soil moisture, canopy cover, and aboveground biomass simulation accuracy.
Main Results
- Water and fertilizer stress were primary constraints in dry years; temperature stress in wet years.
- A medium fertilizer rate (555 kg·ha<sup>-1</sup>) and dynamic irrigation (90-180 mm) were optimal.
- DIM maximized yield in wet years; SBDI excelled in water saving during normal/dry years.
Conclusions
- The "hydrological year-irrigation method-threshold" framework supports precision management for silage maize.
- Findings provide scientific support for sustainable livestock farming in arid regions.
- Optimized regimes enhance crop productivity and water use efficiency.
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