Yields

Soybean seeding rates: The balance between cost and yield

jvandyk — Thu, 05 Apr 2007 10:27:34 -0500

Study changes seeding rate recommendations.

Soybean seeding rates: The balance between cost and yield

jvandyk — Thu, 05 Apr 2007 10:27:34 -0500

Study changes seeding rate recommendations.

Yield response for 15- vs. 30-inch row spacing

jvandyk — Thu, 05 Apr 2007 10:20:49 -0500

Yield response to four harvest plant populations in 15” and 30” row spacing. Data collected from eight environments from 2004 to 2006. LSD (5%) for comparison: row spacing (RS) = 1.3 bu/acre, seeding rate (SR) = 1.4 bu/acre, and RS x SR = NS. Yield values are not significantly different from each other when the difference between values is less than the LSD.

Yield response across four planting dates

jvandyk — Thu, 05 Apr 2007 10:19:59 -0500

Yield response for four harvest plant populations averaged across four planting dates for two studies. Study 1 was conducted at Ames, Crawfordsville, and Nashua from 2003 to 2005. Study 2 was conducted at DeWitt, Nevada, and Whiting from 2004 to 2006. Yield values are not significantly different from each other when the difference between values is less than the LSD.

Yield response across four planting dates

jvandyk — Thu, 05 Apr 2007 10:19:59 -0500

United States corn grain yields

jvandyk — Wed, 14 Feb 2007 12:33:38 -0600

United States corn grain yields (1900–2005). (National Agricultural Statistics Service)

Increasing the frequency of corn in crop sequences: Grain yield and response to nitrogen -- a research update

jvandyk — Tue, 13 Feb 2007 16:07:25 -0600

Research results are presented.

Increasing the frequency of corn in crop sequences: Grain yield and response to nitrogen -- a research update

jvandyk — Tue, 13 Feb 2007 16:07:25 -0600

Research results are presented.

Increasing the frequency of corn in crop sequences: Grain yield and response to nitrogen -- a research update

jvandyk — Tue, 13 Feb 2007 16:07:25 -0600

Research results are presented.

The economics of corn on corn

jvandyk — Tue, 13 Feb 2007 15:40:14 -0600

Factors that apply to the individual producer are discussed.

The economics of corn on corn

jvandyk — Tue, 13 Feb 2007 15:40:14 -0600

Factors that apply to the individual producer are discussed.

The economics of corn on corn

jvandyk — Tue, 13 Feb 2007 15:40:14 -0600

Factors that apply to the individual producer are discussed.

300 bushels of corn . . . when and how?

jvandyk — Mon, 12 Feb 2007 10:34:43 -0600

Is it even possible to produce 300 bushels of corn per acre?

300 bushels of corn . . . when and how?

jvandyk — Mon, 12 Feb 2007 10:34:43 -0600

Is it even possible to produce 300 bushels of corn per acre?

More about early seed discounts

jvandyk — Tue, 14 Nov 2006 13:47:24 -0600

Risk management revisited.

Early seed discounts don't always pay

jvandyk — Mon, 09 Oct 2006 15:04:20 -0500

Don't be hasty when selecting hybrids.

What's the yield effect of uneven corn heights?

jvandyk — Fri, 16 Jun 2006 13:10:57 -0500

Research from around the world.

To be determined: Ear row numbers and kernels per row in corn

jvandyk — Fri, 02 Jun 2006 13:36:05 -0500

Increase yield by increasing kernel numbers.

Relationship between corn and soybean yields

jvandyk — Sun, 17 Feb 2002 13:00:00 -0600

Weather differences affect yields on the same land.