Plants and photosynthesis. Animals eat food to get their energy. But green plants don't. Instead they make their own food, glucose, in a process called photosynthesis. We say that plants can photosynthesise. These are the things that plants need for photosynthesis: carbon dioxide.water. light.lants and photosynthesis. Animals eat food to get their energy. But green plants don't. Instead they make their own food, glucose, in a process called photosynthesis. We say that plants can photosynthesise. These are the things that plants need for photosynthesis: carbon dioxide.
Crop Rotation. Definition - What does Crop Rotation mean? Crop rotation is the systematic planting of different crops in a particular order over several years in the same growing space. This process helps maintain nutrients in the soil, reduce soil erosion, and prevents plant diseases and pests.
Crop rotations are essential to help control many of the crop-disease problems that occur in Pennsylvania. Diseases such as gray leaf spot in corn, take-all in wheat, and sclerotinia in soybeans can be partially controlled with crop rotation.n alternative to continuous corn is the corn/hay rotation that is common on many Pennsylvania dairy farms. This rotation often includes corn following an alfalfa-grass sod. One challenge in this rotation is control of the existing sod.