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Calcium and magnesium are essential secondary nutrients for plant growth, which directly affect cell wall development, photosynthesis, stress resistance, and crop fruit quality. As a mainstream nutritional fertilizer, agricultural calcium magnesium granular fertilizer is widely applied in fruit trees, vegetables, flowers, and aquaculture. It effectively solves common problems such as leaf yellowing, fruit cracking, blossom-end rot, and flower and fruit drop caused by calcium and magnesium deficiency. With various types and customized formulas available on the market, many growers and farmers struggle with model selection and scientific application. This article comprehensively introduces the core functions, main types, professional purchasing skills, application methods and applicable scenarios of calcium magnesium fertilizer, helping users select and apply fertilizers scientifically to improve crop quality and yield.

Long-term application of acid fertilizers leads to severe acidification and compaction in most orchard soil, hindering root growth and triggering calcium-deficient diseases such as fruit cracking. Calcium ammonium nitrate supplies nitrogen and calcium simultaneously. With mild chemical property, it can gradually improve soil conditions. This article introduces its improvement effects, application methods and matched fertilization schemes.

Most farmers struggle to distinguish between blended fertilizer, mixed fertilizer, and compound fertilizer during fertilizer purchasing and field application. These three common multi-nutrient fertilizers all contain nitrogen, phosphorus, and potassium, yet they differ greatly in nutrient composition, production processes, particle uniformity, fertilization stability, and crop absorption efficiency. Choosing the wrong fertilizer will lead to insufficient fertilizer effects, uneven nutrient supply, increased planting costs, and reduced crop yields. This article elaborates on the core differences among the three fertilizers from three key dimensions: nutrient composition, production technology, and practical application effects, helping growers select and apply fertilizers scientifically to maximize crop productivity.

Integrated water and fertilizer system is widely used in greenhouses and orchards, with water-soluble NPK fertilizers as core topdressing. Improper application causes fertilizer burn, pipeline blockage and nutrient waste. This article introduces standardized application skills to boost fertilizer efficiency and cut planting costs.

Ammonium chloride is a physiologically acidic quick-acting nitrogen fertilizer widely applied in agriculture. Featuring stable nitrogen content and high cost performance, it is extensively used for grain crops and fiber cash crops. Nevertheless, due to containing chloride ions and its property of acidifying soil, it has strict restrictions on applicable crops, soil types and application methods. Many growers encounter soil compaction, poor crop quality and low fertilizer efficiency because they fail to distinguish applicable scenarios and ignore fertilizer application taboos. This article comprehensively introduces the chemical characteristics, applicable crops, application features and prohibitions of ammonium chloride, guiding growers to apply fertilizer scientifically, avoid risks and increase yields.

Magnesium deficiency commonly causes yellow leaves in field fruit trees, weakening photosynthesis and reducing fruit quality and yield. Magnesium sulfate features high solubility and rapid absorption, effectively replenishing soil magnesium and relieving leaf chlorosis. This article introduces its supplement mechanism, application methods and orchard matching fertilization solutions.