Becuase leaves and animal poo is biodegradable, which means it can be dissolved easily (unlike stuff like plastic and metal), and it is also very good for the plants because it isn't artificial like fertilizer u can buy in shops - it's organic.
farmers use a mixture of manures and fertilizers so that the nutrients which cannot be fulfilled by the manures can be fulfilled by the plants and the nutrients which are not in the fertilizers can be fulfilled by the manures ex-NPK [nitrogen, phosphate and potassium] fulfill the nutrients which are not present in the manures
Fertilizers are spread on fields by farmers to help their crops grow.
Farmers add nitrate fertilizers to their fields to provide essential nitrogen nutrients for plant growth. Nitrogen is a key element for plant protein synthesis and overall growth. The fertilizers help improve crop yield and quality by ensuring plants have enough nitrogen for optimal development.
The substances which are added to the soil in the form of nutrients like animal waste, plant waste for the healthy growth of plants are called manures and fertilizers are compounds which supply a specific nutrient to make the soil fertile.
Farmers use fertilizers to provide essential nutrients to the soil that are necessary for plant growth. They help supplement the soil's natural nutrient content, promoting healthier plants and increased crop yields. By applying fertilizers strategically, farmers can ensure that their crops receive the appropriate balance of nutrients to thrive.
Because all plants are able to extract plenty of carbon dioxide from the air, which gives them plenty of carbon. Nitrogen has to be in a form usable to the plant, which only symbiotic bacteria on the roots of legumes are able to take out of the air.
farmers used the shaduf to irrigate their fields :):) its true
no black farmers were allowed to work the fields.
In farmers fields.
Since the fields were filled with water the farmers word for the king. Instead of working in the fields they helped work on the temples and pyramids.
It's not entirely true to say, "...regularly add nitrate fertilizers..." since farmers in the US generally select the kind of fertilizers to use based on the nutrient needs of the crop, timing of application, and price of the fertilizer material. Nitrate fertilizers are one form they can use to get nitrogen, possibly the single most important nutrient, to their crops. However, nitrates are not always the most appropriate form to use, and so they also use ammonium types such as urea or anhydrous ammonia.
Farmers use manure on their fields because it is a natural fertilizer that enriches the soil with essential nutrients like nitrogen, phosphorus, and potassium. It also helps improve soil structure, retain moisture, and promote healthier plant growth. Additionally, using manure can reduce the need for synthetic fertilizers and minimize waste through recycling organic matter back into the soil.