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| 1. | What is the disadvantage of using chemical fertilisers in modern agriculture system? | 
| Answer» Explanation: ┏─━─━─━─━∞◆∞━─━─━─━─┓ ✭✮ӇЄƦЄ ƖƧ ƳƠƲƦ ƛƝƧƜЄƦ✮✭ ┗─━─━─━─━∞◆∞━─━─━─━─┛ FERTILIZERS➫ A chemical or natural substance added to soil or land to increase its fertility. Manure➫ A fertilizer made from animal waste. ➧ It better to USE compost than chemical fertilizers because:- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=⤵ ❱ It is easier to prepare. ❱ It is environment friendly. ❱ It is cheap. ❱ It less harmful. ➧ Advantage of Fertilizers:- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=⤵ ❱ They they improve the structure of the soil. ❱ It increase its ability to hold water and nutrients. ❱ They improve water movement into the soil. ➧ Disadvantage of Fertilizers:- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=⤵ ❱ It leads to eutrophication. ❱ It effects on waterways caused by chemical run off of the excess fertilizer. ❱ They grow plants but do nothing to sustain the soil. ❱ It can cause:- ♦ Cardiac Disease ♦ Several Cancers ♦ RESPIRATORY Ailments ➧ Types of Fertilizers are:- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=⤵ [1] Complete inorganic fertilizers:- ❱ These types of inorganic fertilizers contain all three major MACRONUTRIENTS:- ♦ Nitrogen (N) ♦ Phosphorous (P) ♦ Potassium (K) [2] Special purpose fertilizer:- ❱ These types of fertilizer are formulated ESPECIALLY to target certain plants' requirements or certain soil deficiencies. ➧ Benefits of Compost & Chemical Fertilizers:- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=⤵ ❱ It helps to decontaminate soil. ❱ They improve the structure of the soil. ❱ They increase soil ability to hold water & nutrients. ❱ They provide a healthy medium for plant growth. _________ Thanks...✊ | |