1、How Much Boron Fertilizer per Mu is Appropriate for Rapeseed?

Considering the agronomic characters, yield and utilization efficiency of boron fertilizer, it is recommended that the amount of boron fertilizer used in this rapeseed planting area should be about 15.00 kg/hm~2.

2、Effect of balanced application of boron and phosphorus fertilizers on

Abstract Rapeseed (Brassica napus L.) is extremely sensitive to both boron (B) and phosphorus (P) deficiencies. Application of chemical fertilizers is generally considered to be an effective agronomic practice to improve crop productivity, and it also affects soil bacterial community.

3、不同硼肥用量对油菜产量与养分含量的影响

Abstract In this paper, field experiments with different boron fertilizer dosage were carried out for 3 con-secutive years under suitable NPK fertilizer application.

4、Boron Nutrition and Boron Application in Crops

In this paper, we will review the respective progress and report about the Chinese studies on the function of B, diagnosis of B status of plants and techniques of B fertilizer application.

Current rape fertilization measures

Application of boron fertilizer can play a preventive and control role, which is more important for hybrid rapeseed and high quality rapeseed. Boron is generally sprayed once in the flood season and early flowering period.

Fertilization tips for rapeseed after spring

Rapeseed "flowering but not realizing" is a physiological disease caused by boron deficiency. Application of boron fertilizer has a good effect of increasing yield.

Pay attention to boron supplement in rapeseed

Therefore, special attention should be paid to the application of boron fertilizer to the drought-bearing rapeseed. Even if rapeseed fields with boron fertilizers have been applied at the time of sowing or transplanting, foliar spraying of boron is still required during flowering.

The effect of boron fertilizer on rapeseed

Fourth, other methods of boron: Boron acid per acre of 10 to 15 grams or 200 grams of borax or seed soaked in water containing boron for 12 hours, has the effect of improving rapeseed yield.

Scientific fertilization of winter rapeseed in the Yangtze River Basin

The production level is 150~200 kg/mu: timely application of manure, nitrogen fertilizer (N) 3.0 kg/mu, potassium fertilizer (K ​​2 O) 2.5 kg/mu. The base fertilizer has no field for applying boron fertilizer. In the early stage of convulsion to flowering, the lob sand is sprayed with 0.3 kg/mu.

[PDF] Effects of Different Boron Fertilizer Dosage on Yield and

Excessive amount of boron fertilizer is not conducive to the absorption of nitrogen, phosphorus and potassium nutrients in rapeseed. Based on the above studies, it is recommended that the applicable amount of boron fertilizer in rape production in this region is 7.5 kg/hm2.

In rapeseed cultivation, the application amount of boron fertilizer is a critical consideration. Boron fertilizer significantly impacts the growth, development, and yield of rapeseed. Below is a detailed guide on boron fertilizer usage for one mu of rapeseed:

1. Understanding the Role of Boron Fertilizer

• Promotes Root Development: Boron enhances root growth, improving the plant’s ability to absorb water and nutrients. This boosts overall growth speed and disease resistance.
• Improves Photosynthetic Efficiency: Boron increases photosynthetic efficiency in leaves, raising the content of sugars, proteins, and other organic compounds in plants. This directly enhances rapeseed yield and quality.
• Strengthens Stress Resistance: Boron improves the plant’s resilience to pests, diseases, drought, and saline conditions, reducing crop losses.

2. Determining the Optimal Application Rate

• Soil Conditions: Soil boron levels directly affect rapeseed’s boron needs. Low-boron soils require higher boron fertilizer doses, while boron-rich soils need less.
• Crop Variety and Growth Stage: Different rapeseed varieties have varying boron requirements. Adjust applications based on growth stages (e.g., seedling, bolting, or maturity stages).
• Recommended Dosage: According to agricultural guidelines, apply 50–100 grams of boron fertilizer per mu. Adjust based on soil tests and crop observations.

3. Application Methods and Precautions

• Uniform Spreader: Spread boron fertilizer evenly across the field before soil tillage to ensure proper mixing.
• Avoid Overapplication: Excessive boron can cause toxicity, stunting growth. Stick to recommended doses.
• Safe Storage: Boron fertilizer is water-soluble and may react chemically. Store in a dry, cool place away from children and pets.

4. Practical Examples

• Regional Success Story: In a boron-deficient region, optimized boron use increased rapeseed yields by ~15%, proving its effectiveness.
• Farmer’s Experience: A farmer noticed poor growth due to insufficient boron. After adjusting to recommended levels, plant health and yield improved significantly.

Proper boron fertilizer application is vital for maximizing rapeseed yield and quality. avoid overapplication to prevent toxicity. Tailor dosages to soil conditions and crop needs for best results.

Key Terms: Boron fertilizer, photosynthetic efficiency, stress resistance, soil boron content, bolting stage.