1、Legume straw incorporation with optimal nitrogen fertilizer improves

Optimizing nitrogen fertilizer and straw application is essential for sustainable agricultural development. However, the effects of variations and related factors associated with nitrogen fertilizer reduction combined with different straws on soil quality and greenhouse gas emissions remain unclear.

2、Does Straw Add Nitrogen to Soil? – The Nitrogen Myth

Straw’s ability to add nitrogen to soil is largely dependent on the soil’s microbial activity and nitrogen-cycling processes. In soils with high microbial populations and activity, straw can be broken down and its nitrogen released, making it available to plants.

3、Combining Straw Mulch with Nitrogen Fertilizer Improves Soil and

The sole use of nitrogen fertilizer threatened both the physiology and production of maize in rain-fed areas. Therefore, we proposed that wheat straw mulching with N fertilization would increase maize yield by improving soil fertility, physiology, and nitrogen use efficiency.

4、Effects of Straw and Nitrogenous Fertilizers on the Soil Aggregate

Specifically, 250 kg ha − 1 nitrogen application under straw return (SRN250) demonstrated an enhancement in soil aggregate organic carbon (SOC) content, leading to improved soil physical attributes and stability within the 0–40 cm soil depth.

5、The competitive effects of crop straw return and nitrogen fertilization

Higher nitrogen fertilizer input (>100 kg/ha) accelerates H⁺ production with low straw return. Straw return compensates for cations removed during harvest, reducing H⁺ buildup. Balanced nitrogen and straw return optimizes soil carbon-to-nitrogen ratio, alleviating acidification.

Straw mulching with fertilizer nitrogen: An approach for

However, the straw mulching amount should be further studied with minimum nitrogen fertilizer for an environment‐friendly and effective approach for improving the soil biological properties with adequate crop production on a sustainable basis in the semi‐arid region of China.

N Fertilizer in Combination with Straw Improves Soil Physicochemical

Thus, we concluded that plowing ammoniated straw with N fertilization is a promising strategy for improving soil fertility and crop productivity in winter wheat–summer maize rotation systems in the sub-humid, drought-prone areas of northwestern China.

Combining Straw Mulch with Nitrogen Fertilizer Improves Soil and Plant

Mulching and nitrogen (N) fertilization are the main drivers for sustainable crop production. The sole use of nitrogen fertilizer threatened both the physiology and production of maize in rain-fed areas.

Effects of Straw Incorporation and Fertilizer Interaction on Nitrogen

Combining straw mulch with nitrogen fertilizer has been shown to enhance soil and plant physio-chemical attributes, leading to increased photosynthetic efficiency, nitrogen use efficiency, and grain yield (Akhtar et al., 2023a).

Maize Straw and Nitrogen Fertilizer Alter Soil Carbon and Nitrogen

Combining straw with nitrogen fertilizer is an important strategy that influences soil fertility and crop yield. N availability may further affect carbon mineralization (C min) and nitrogen mineralization (N min) in the soil by influencing the microbial decomposition of straw.

Straw, a byproduct of agricultural activities, primarily consists of plant stems and leaves. In farming, straw is often reused as fertilizer, but whether to add nitrogen fertilizer and why it is necessary warrants exploration.

Why Add Nitrogen Fertilizer to Straw?

1. Enhance Soil Fertility Nitrogen is a critical component of proteins and essential for crop growth. Soil lacking sufficient nitrogen can stunt crop development and reduce yields. Adding nitrogen fertilizer to straw replenishes soil nitrogen, boosting fertility and promoting healthy plant growth.

2. Facilitate Nutrient Absorption Nitrogen fertilizer increases soil nitrogen levels, enabling crops to absorb nitrogen and other nutrients more efficiently. This is particularly important for nitrogen-demanding crops like legumes and certain vegetables.

3. Improve Soil Structure Balanced nitrogen application enhances soil physical properties, such as aeration and water retention, improving its resilience to drought and flooding. This sustains long-term soil health.

4. Reduce Chemical Fertilizer Use Combining straw with nitrogen fertilizer lowers reliance on synthetic fertilizers, reducing environmental pressure and supporting sustainable agriculture.

5. Boost Crop Quality Proper nitrogen use can enhance crop traits, such as fruit sweetness and taste, increasing market value.

How to Apply Nitrogen Fertilizer Wisely

1. Select Appropriate Nitrogen Sources Choose fertilizers like urea, ammonium nitrate, or ammonium phosphate based on crop needs and soil conditions. Urea is a widely used option.

2. Control Application Rates Excessive nitrogen leads to imbalances and pollution. Tailor dosages to soil fertility and crop requirements.

3. Combine with Other Nutrients Pair nitrogen with phosphorus, potassium, or organic fertilizers to optimize nutrient uptake and prevent deficiencies.

4. Timing Matters Apply nitrogen early to maximize benefits. Avoid over-application during peak growth to prevent excess foliage and pest risks.

5. Integrate Organic Fertilizers Mix nitrogen fertilizers with organic matter (e.g., compost) to enrich soil ecology and improve long-term fertility.

6. Monitor Soil and Crops Regularly test soil and assess crop health to adjust fertilization strategies.

adding nitrogen to straw is an effective soil management practice. It enhances fertility, supports crop growth, and reduces environmental impact. success depends on scientific application, including proper timing, dosage, and integration with other nutrients. Farmers should tailor approaches based on local climate, soil, and crop needs to ensure sustainable agricultural productivity.