It's harvest time again. Of course, harvest season may not mean that much to you if you don't work in agriculture. Nonetheless, you can learn a lot from those who do - especially in your role as an investor.

Here are a few of these lessons to consider:

• "Feed" your portfolio. Through the proper combination of fertilizers and irrigation, farmers seek to maximize the growth of their crops. And if you want to give your portfolio the opportunity to grow, you need to "feed" it with the right mix of investments. This generally means you'll need to own a reasonable percentage of growth-oriented vehicles, such as stocks and stock-based securities. Keep in mind, though, that the value of these types of investments will fluctuate, sometimes sharply - and there's no guarantee you won't lose some or all of your principal.

• Be patient. Crops don't grow overnight. Farmers know that they will put in countless hours of work before they see the fruits of their labors. And they know that, along the way, they will likely experience setbacks caused by a variety of issues: too much rain, too little rain, insect infestations - the list goes on and on. When you invest, you shouldn't expect to "get rich quick" - and you can expect to experience obstacles in the form of bear markets, economic downturns, changes in legislation and so forth. Continuing to invest for the long term and focusing more on long-term results than short-term success can help you as you work toward your objectives.

• Respond to your investment "climate." Farmers can't control the weather, but they can respond to it. So, for example, when it's been dry for a long time, they can boost their irrigation. As an investor, you can't control the economic "climate," but you can make adjustments. To illustrate: If all signs point to rising long-term interest rates, which typically have a negative effect on long-term bond prices, you may need to consider reducing your exposure, at least for a while, to these bonds.

• Diversify. Farmers face a variety of risks, including bad weather and fluctuating prices. They can help combat both threats through diversification. For instance, they can plant some crops that are more drought-resistant than others, so they won't face complete ruin when the rains don't fall. As an investor, you should also diversify; if you only owned one type of financial asset, and that asset class took a big hit, you could sustain large losses. But spreading your dollars among an array of investments - such as stocks, bonds, cash and other vehicles - may help reduce the effects of volatility on your portfolio. (Be aware, though, that diversification by itself can't guarantee a profit or protect against loss.)

Relatively few of us toil in the fields to make our living. But by understanding the challenges of those who farm the land, we can learn some techniques that may help us to nurture our investments.

This article was written by Edward Jones for use by your local Edward Jones Financial Advisor. Rick Durbin, AAMS, Financial Advisor, 609 Calgary Court, Suite 5, Post Falls, ID (208) 773-1785 and Kim Durbin, Financial Advisor, N. 920 Highway 41, Suite 7, Post Falls, ID (208) 773-0009.