How do I plant and harvest crops?

While standing in the crop area beside your home, tap the seed icon in the lower right corner to open the seed menu. Tap and drag the crops you want to plant over the plots where you want to grow them. When your crops are ready to harvest, walk up and tap on them.

How do I feed and collect products from my animals?

With corn or wheat in your inventory, tap on a hungry animal to feed it.