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Reduce Lead in City Gardens
Many substances pollute the air around us, particularly in cities. Some chemicals even get into our garden soil and plants, and these can affect our health. One is of these is lead. We may not see or taste it, but some crops grown in cities may contain dangerous amounts of lead. So we need to…
Make Drylands Productive with Planting Pits
Even if you have dry, desert soils with a hard crust you can improve your land and grow crops again. In parts of West Africa farmers make cracked, hardpan soils productive again by planting their grain seeds in small pits. They plant sorghum and millet this way. Here’s how you can make these planting pits….
The Rubber-Tire Groundnut Sheller
Groundnuts, or peanuts, are one of the major cash crops in some regions of Thailand and are an important source of protein for rural people. Thousands of Thai farmers work farms of less than one hectare of land, producing groundnuts by manual methods. This is a labour‑intensive process which, along with the low productivity of…
Chickens Fertilize and Weed the Garden
If you have a small farm or market garden you might be interested in a cheap way to fight weeds, fertilize the soil, and increase crop yields. Some people call it a chicken tractor even though it doesn’t have the engine that a normal tractor has. Instead it’s a bottomless cage that you can move…
Garden on Your Rooftop
Are you making the best possible use of the space above your head? I’m talking about the space on top of your house – the rooftop! It’s possible to harvest lots of fresh vegetables from a rooftop garden and deliver them directly to your kitchen table. Go up to your rooftop or out to your…
Grow Vegetable Vines in Small Spaces
Fresh vegetables can be costly to buy at the market. But you can grow them yourself at home. Even if you live in the city or the village and don’t have much space, you can still plant vegetables that grow on vines. A huge variety of these grow in the tropics: cucumbers, gourds, pumpkins, climbing…
You and your environment
No. 1: Plastics harm the environment Did you know that most plastic is not biodegradable? That means that it does not decompose naturally and turn into another material without polluting the environment. There are 46 different types of plastics, and technologies to recycle them are not well developed. There have been experiments to produce something…
Use the Sun to Cook your Food
One way people sometimes describe a really hot day is to say, “It’s so hot, you could fry an egg on the ground.” Well, how about cooking vegetables in a box in the sun? You can do this using the rays from the sun. This is called cooking with solar energy. Cooking with solar energy…
Raising Guinea Pigs for Meat or Money
When you think of guinea pigs you might think of cute, cuddly little pets. But for the highland people of South America, and people in parts of Africa and Asia, guinea pigs mean extra food and income. Maybe you would like to try raising guinea pigs. First of all, the meat is delicious. You can…
Choosing a Fishpond Site
A fishpond is an enclosed body of water used to raise fish. It can be made of concrete or earth and it has both an inlet and an outlet to allow water to flow through. Here are some things to consider when you select a site for a fishpond. Water supply is the most important…