Hi, welcome back to my blog. For this entry, I want to share with you about activity we have done in week 6. In this week, we have learned a lot things about fertiziler. First of all, we need gathered at plantation workshop to listen briefing from Madam Salwa.
6.1 Madam Salwa introduced to students about fertilizers.
6.2 Types of fertilizers in the workshop
6.3 Madam Salwa explained to students how to identify the composition of nutrient in fertilizer
Micronutrient
- Fertile soil contain sufficient amount of micronutrient to meet the plant’s requirement
- The micronutrients consist of seven essential elements: boron, copper, chlorine, iron, manganese, molybdenum, and zinc.
- These elements occur in very small amounts in both soils and plants, but their role is equally as important as the primary or secondary nutrients.
- A deficiency of one or more of the micronutrients can lead to severe depression in growth, yield, and crop quality.
Macronutrient
- Fertile soil contain sufficient amount of macronutrient to meet the plant’s requirement
- Plants need relatively large amounts of nitrogen, phosphorus, and potassium. These nutrients are referred to as primary nutrients.
- The three secondary elements, calcium, magnesium, and sulfur, are required in smaller amounts than the primary nutrients.
Secondary macro nutrients such as:
-Calcium (Ca), Magnesium (Mg) Sulfur (S)
- Micro elements are also known as trace elements and sometimes people even call them the "multi vitamins" for plants.
- The micro elements of plants are made up of:
-Iron (Fe), Zinc (Zn), Manganese (MN), Boron (B),
Molybdenum (Mo) and Copper (Cu)
Deficiency symptoms
Mn Interveinal chlorosis & stunting
B General stunting, white young leaves
Mo Similar to N deficiency
Cl Chlorosis & necrosis of leaves
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| Composition of nutrient in fertilizer
For your information, Severe foliar symptom of oil palm,
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DISEASES – BASAL STEM ROT (BSR) |
