Zinc deficiency in crops is one of the most widespread micronutrient problems, affecting a wide range of agricultural products. Common symptoms include leaf chlorosis, shortened internodes, clustered leaves, distorted growth, stunted plant development, low seed set, and reduced yields. To address this issue, applying zinc fertilizer is an effective solution. When zinc is supplied, crop growth improves significantly, leading to higher seed-setting rates, better cold and disease resistance, and increased production by 10% to 30%.
Soil zinc deficiency is prevalent in many regions, especially in areas with high groundwater levels, winter fields, muddy soils, high altitudes, and cooler climates. The excessive use of compound and phosphate fertilizers can also trigger zinc deficiency, making it necessary to supplement with zinc-based fertilizers. Additionally, the adoption of hybrid varieties and high-yield farming techniques increases the demand for zinc, further highlighting the need for zinc fertilizer application.
Zinc fertilizer is beneficial for a variety of crops, including corn, wheat, cotton, rapeseed, fruit trees, vegetables, soybeans, peanuts, artichokes, and tobacco. Its use not only enhances yield but also improves product quality, making it a valuable tool for farmers aiming for sustainable and profitable agriculture.
The application methods for zinc fertilizer vary depending on the crop and soil type:
1. **Paddy fields**: Apply 200 grams of granular zinc per acre. It can be used as a seedbed fertilizer in Putian or mixed with granular fertilizer and fine soil during field preparation for surface application.
2. **Dryland fields**: Use 200 grams of granular zinc per acre. Mix it with compound fertilizer or fine soil before spreading across the field prior to planting.
3. **Fruit trees**: Apply 5 to 10 grams of granular zinc per tree, depending on the size of the canopy. It can be combined with compound and organic fertilizers and applied as a spring or fruit-enhancing fertilizer. Spread it along the drip line of the tree after digging a small trench.
It's important to apply zinc fertilizer early in the growing season for maximum effectiveness. Combining it with nitrogen, phosphorus, and potassium fertilizers can enhance its benefits and improve overall crop performance. Always follow recommended application rates to avoid overuse. Granular zinc has a residual effect, so it is typically applied once a year or every other year in deficient soils. Proper timing and correct dosage are key to achieving the best results.
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