The best time to sow sunflower seeds is once the frost risk has passed and the soil temperature is at least 50°F (10°C). Too cold soil may put them in a dormant state, delaying germination. To ensure healthy and uniform germination, also take care of the proper planting depth. How...
Tadao Y. Garrett
How to Do It: Purchase a soil test kit. We recommend the SoilKit for its accuracy and ease of use. Follow the kit’s instructions to collect a soil sample and send it for analysis. Amend your soil based on the results, focusing on the nutrients that are lacking. 1 2 3 4 5 Soil ...
How to Grow Green Onions from Seed Green onions are a hardy, low-maintenance crop that mainly need plenty of sun and rich, well-draining soil. Make sure to amend your garden bed with an inch or two of compost before planting, or use a high-quality potting mix if you’re growing in ...
An uneven lawn can make it challenging to grow grass and use your lawn mower, and the uneven surface can create tripping hazards. I suggest using topsoil to smooth out your lawn. Next, you should grade your soil— or determine the slope of the ground. You don’t want a completely flat...
Land plants thrive in soils showing vastly different properties and environmental stresses1. Root systems can adapt to contrasting soil conditions and stresses, yet how their responses are programmed at the individual cell scale remains unclear. Using si
Body farms are teaching scientists how to study the ground around human remains for evidence -- soil acidity can indicate how long a body has been leeching fluids into the Earth. What's more, forensic anthropologists are learning to pay heed to the effects of weather and environment on ...
Grow Medium (place to grow, soil isn’t your only choice) Temperature (room temperature or a little warmer is perfect during the day, cannot stand freezing at night) Nutrients (start at half as much as what’s recommended on the package) Water (maintain pH for best results, soil likes ...
To harvest, carefully dig (don’t pull or yank stems by hand) up the bulbs using a garden fork. Avoid damaging the roots, especially the root plate (where they attach to the bulb). Lift the plants and carefully brush off surplus soil, but do not remove any foliage or roots before put...
TECHNOLOGY FEATURE How to pull the blanket off dormant cancer cells Vivien Marx When asleep, cancer cells can evade chemo. When they wake up, they can cause cancer recurrence. By deciphering dormancy cues, labs explore how to break this cycle. Of the many types of cancer cell misbehav- ior...