what happens when chemical fertilizers and pesticides used in agriculture
Answers
PROS:
Use of pesticides and fertilizers has agricultural benefits. Plants feed off soil nutrients required for their healthy growth and development. Over time, if these nutrient supplies are not replenished, soil will be incapable of sustaining plant life. Fertilizers are used to put these nutrients back into the ground. Organic fertilizers like livestock manure improve soil quality, but they release nutrients slowly. Manufactured fertilizers, on the other hand, give soil the quick boost needed during the growing season. Pesticides also provide an agricultural benefit by controlling pests that can damage or kill plants, saving at least 8 percent of crops annually.
CONS:
The pros of pesticide and fertilizer use are offset by the problems related to their toxicity. For example, pesticides used to protect crops from harmful pests often kill beneficial insects. Runoff of chemicals used in pesticides and fertilizers can drain into streams and lakes, and eventually our water supplies. Excess nitrogen from fertilizer runoff can cause excessive algae growth in rivers and lakes. Pesticides can also adversely affect the health of people who use them, as well as people who live near large agricultural areas, not to mention those who consume food treated with chemical pesticides. As many as 20,000 Americans suffer from pesticide poisoning each year, and the World Health Organization estimates 1 to 5 million people worldwide are affected by pesticide poisoning annually
Answer:
we use chemical fertilizer and precticides in agriculture for many reasons such as to keep away weeds,insects,and even to grow the crop healthy but it has an adverse effects on the crop as it mixes up with soil and are absorbed by the plants and release themselves in it,and when we eat the food these chemicals react in our body causing various diseases, where as some of it couldn't make through the soil get washed by excess water or rain and mix up in the river polluting it as well as harming the lives present in there.