When agriculturists use inorganic plant food they risk overusing it and as a result damage the structure and components of the soil they intended to improve in the first place. With the natural fertiliser you will provide your plants with what they need and at the same time you won't leave waste that might go into streams and rivers. Blood aliment is always a safe bet because you can dilute in water and can be poured into the ground. Another alternative is decapods exoskeletons products that have high quantities of Ca and that will help new plants due to the gradual free of substances. - Chemical plant food: this kind is not actually a natural option because it is generally made of processed ingredients. It seems that water-related products do have a beneficial effect on plants. Algae concentrates are a good unprocessed plant food because they contain everything the plant needs to develop in a healthy and strong way. Apart from fish coating and algae concentrates, gardeners often use plant food made of decapods exoskeleton. Take the example of poultry farms. Apart from growing chickens to sell, they also get chicken dung, and as they cannot use because they do not have fields to fertilise they just throw it away. Instead of getting rid of such useful raw material they could start a natural plant food processing complex and earn more money. Apart from helping the planet you will be helping yourself as well because if you use a fluid plant food to fertilise your grass you will not spend as much time and money on it anymore. Although inorganic substances tend to be quite effective, you need to consider its harmful effects not only on your grass but also on your family and pets. One thing you need to consider is that either natural or chemical plant food, both of them have pros and cons, but we need to say that natural plant food products are the ones that will have a less negative impact on the world. Remember that natural does not mean that you can use as much plant food as you want in order to improve your plants' aspect.