Most good garden soils aren’t formed naturally; they are human-made. The way to make the best garden soil is to use ample amounts of organic amendments. Because these materials are continually being broken down and used in the soil, you should replenish them each time you prepare the soil for planting. Compost and many commercial products are good organic amendments. (You can also replenish the soil by a process called green manuring.)
Good Garden Soil Will Have Several Qualities:
1) soak up water readily, yet drain fairly rapidly;
2) hold enough moisture for plants to grow;
3) remain loose and crumbly even in dry weather;
4) have ample space for air to circulate and roots to grow freely;
5) be easy to work;
6) produce good crops with only occasional applications of fertilizer.
You can normally tell a high-quality soil by its smell. These kinds of soil usually have a pleasant smell and are full of earthworms.
When you add organic amendments, put them down in a 3 to 6-inch-deep layer on top of the soil and work them into a depth of 9 to 12 inches.
7 Steps to Awesome Homemade Compost
The purpose of composting is to turn the waste materials from your garden and kitchen into a rich, organic, soil-conditioning material. A compost pile does this efficiently by accelerating the natural processes that occur when dead leaves, grasses, and other materials decompose. Piling organic materials up while they decay is better than digging them into the ground because, when piled up, they don’t temporarily rob growing plants of available nitrogen while breaking down. What you put in your compost pile will depend on the waste material available from your garden and kitchen, but you should follow a few basic rules, so you don’t create a trash pile.
1) Layer Material
Spread a layer of plant material, such as fallen leaves, green or dry weeds, and grass clippings, on a flat piece of cleared ground. Add layers of manure (or a few handfuls of a nitrogen-rich fertilizer), topsoil, and kitchen scraps (except meat, fat, and bones). Keep adding more layers until you’ve used up all the debris. Don’t put too much of one material in the same layer, or it will tend to pack together, slowing the breakdown and causing odor.
2) Chop & Grind
Chop or grind materials into small pieces before you add them to the pile. Smaller particles offer more surfaces for decay organisms to work on. Materials such as grass clippings that are too fine, however, should be mixed with coarser pieces, so they don’t turn into a slimy mass.
3) Turn up the Heat
Heat build-up is essential to make compost. Too shallow a pile won’t hold enough heat in, and breakdown will be slower. A compost pile 4 to 6 feet high will hold heat well and let air circulate. A bin will make it easier to stack compost to this height. Steam rising from the pile is a sign that heat is being generated.
4) Moist but Not Soaked
Keep the pile moist, but not soggy. Too much water limits the air supply. A pile with a slightly concave shape will catch and hold the moisture better. During prolonged periods of heavy rainfall, cover the pile with a plastic sheet or tarp to keep it from becoming soggy. If it does get too wet, frequent turning will restore it to a healthy condition.
5) Turn, Turn, Turn
Turn the pile every few weeks. Good air circulation discourages odor and flies and speeds decay. Turning also moves the outer, undecomposed material into the center so it can break down. Plenty of succulent material, such as lawn clippings and soft green weeds, should be well mixed with dry or woody materials.
6) Add Nitrogen
Nitrogen is needed by the decay-producing bacteria. Sources of nitrogen are fresh manure, blood meal, sewage sludge, and commercial fertilizers.
7) Harvest the Black Gold
Compost is ready to use when it is crumbly, and the original materials have decomposed beyond recognition—usually, about three months after the heap is built. Sift the compost before you use it to eliminate large, undecomposed chunks.
Using Green Manure to Fertilize Your Garden
Planting a green manure cover crop is a good way to add organic matter to your soil in a large garden. It is not, as its name suggests, green-colored manure but a crop that is grown specifically for turning under.
Any of the fast-growing members of the grass family (annual ryegrass, barley, or oats) or the legume family (clover, vetch, lespedeza, broad beans, or peas) may be planted. You could also use mustard, kale, or other broad-leafed plants. Lawn grass seeds, such as bluegrass or fescue, grow too slowly to be practical.
A green manure crop is usually planted in early fall so that it will be half-grown by spring. The entire crop is then tilled into the ground a month or so before planting time. In regions with sub-zero winter temperatures, it’s best to seed the crop between standing vegetables in late summer so plants can root before a heavy frost.
If you must delay turning the crop under because the soil is too wet, keep the crop down to an easily handled size by cutting it with a scythe, shears, or rotary mower.
The crop does not have to be mature to be turned under. Although the top growth may be sparse, the well-developed root system will add a substantial amount of organic matter as it decays.
Purchasing Organic Amendments for Your Garden Soil
If you want to save money, shop around for proper, inexpensive, weed-free amendments or for amendments that are free for the hauling. Depending on where you live, you might find free peanut, rice, or almond hulls; pecan shells; cannery waste; or cider mill pomace. (Cotton- producing states enforce regulations against the use of cotton gin wastes to prevent the spread of insects.)
Other Amendments for Better Garden Soil:
This is a fairly expensive but excellent soil amendment. Several types are sold. Coarse brown sphagnum or hypnum peat moss is generally superior to sedge peats, which are usually black and extremely fine-textured. Most peat moss sold in bales is air-dried. Wet it thoroughly before you mix it into the soil.
Various wood products, mainly sawdust and barks, are inexpensive substitutes for peat moss. These amendments are sold in bagged, baled, or bulk form (the bulk form is the cheapest). You can get these products from commercial firms and sometimes directly from lumber mills or yards. You can buy wood products, either raw or treated. Raw sawdusts rob nitrogen from the soil as they break down, and a few kinds contain materials that can harm some types of plants. For that reason, most commercial products have been treated with nitrogen and allowed to compost to some degree before they are sold. These commercial wood products are generally safe to use for all kinds of plants. If you buy raw sawdust, add a nitrogen fertilizer to it and let it compost for a while before you dig it into the soil.
All forms of manure make useful soil amendments. They improve soil structure and act as mild fertilizers. Besides the manures mentioned below, other kinds, such as rabbit and sheep manure, may be available in some areas. These should be composted before using them. In some arid regions where salt buildup in the soil is a problem, it’s probably best to use soil conditioners other than manure. Steer manure. Processed manures usually come from cattle feedlots. They’ve been treated to kill weed seeds. Use them sparingly (add no more than eight cubic feet per 100 cubic feet of soil) as soil conditioners. Some kinds have high contents of soluble salts. Water heavily after sowing seeds pr transplanting plants to wash away excess salts. Fresh manure or stable litter. Fresh manure needs to be aged before it is used as a soil amendment, or it will burn plants. Composting is a good way to age it. If the temperature remains high enough, many weed seeds that are usually present will be killed. Fresh horse manure can also be dug into the soil to heat old-fashioned hotbeds.
Full of nutrients and virtually free of weed seeds, chicken or turkey manure has long been a favored soil amendment. It must be aged or composted before you mix it into the soil. Fresh poultry manure will quickly burn a newly-planted crop. Some gardeners use fresh chicken manure when they plant a green manure crop in the fall. The growing crop absorbs nutrients from the manure. After being spaded under the following spring, the decomposing material gradually and safely dispenses nutrients to the growing vegetables.
If you have any special composting or garden soil amendments that you use let me know in the comments!