This post is one in a series in which more than 60 newsletter advisors share their Top Stock Picks for 2011. This special report is courtesy of TheStockAdvisors.com.

"One of the easiest ways to participate in the long-term demand for corn, wheat, cotton etc. is with a soft commodity-based exchange traded fund," says Gene Inger.

The editor of The Inger Letter explains, "We recommend the PowerShares DB Agriculture ETF (DBA) as our top pick for 2011.

"Both short and long-term factos suggest higher agricultural prices," says Leonard Goodall in No-Load Portfolios. Here, the fund expert looks at a pair of agriculture-based ETFs.

"Bad weather through the country has had a negative impact on the agriculture sector. Rain and flooding in the plains states has caused a delay in harvesting the winter wheat crop and other grains are behind in their normal growing season.

"Moreover, current grain supplies are low as compared with demand. These factors point to the possibility of higher grain prices in the months to come.

"Population growth will likely spur increased demand commodities," says ETF expert Doug Fabian. In Making Money Alert he looks at PowerShares DB Commodity (NYSE: DBC).

"World population growth trends suggest massive numbers of new global citizens on the way -- citizens that are going to require essentials such as food, clothing and shelter.

"For investors who want to ride this population wave, I offer you the PowerShares DB Commodity Index, an exchange-traded fund that seeks to track the performance of the Deutsche Bank Liquid Commodity index.

"There are many reasons to like the PowerShares DB Agriculture (NYSE: DBA), an exchange-traded fund that tracks agricultural commodity prices," says fund expert Doug Fabian.

In The ETF Trader, he explains, "We like the technical picture. In addition, we believe commodities are a great hedge against inflation.

"Overall, we like the patterns taking shape in the world's key agricultural crops. The price charts of crops like corn, soybeans, sugar and wheat all have given us one compelling message, and that message is it's time to buy.

"I remain a devoted long-term soft commodities bull; the grains and other soft agricultural commodities remain one of the most long-term compelling investment trends of our lifetime," says Eric Roseman.

In The Commodity Trend Alert, the advisor looks at the PowerShares DB Agriculture Fund (NYSE: DBA), noting "The grains and other soft agricultural commodities remain one of the most long-term compelling investment trends of our lifetime. I'm convinced that we remain in a long-term bull market for agricultural commodities.

"This historical trend began in 2006 and remains extremely powerful as population growth exceeds arable food supply combined with unpredictable weather patterns attacking supplies and causing droughts.