More cards in this set

What do contact herbicides do?

How do insects reduce crop yields?

Why are livestock given antibiotics?

How can we control pests without pesticides?

What are the main principles of integrated control?

What abiotic factors must be controlled to increase productivity?

What are the cultural methods of managing nutrient supplies?

Advantages of natural fertilisers?

Disadvantages of natural fertilisers?

Advantages of artifical fertilisers?