Agronomic Crops

Production and Harvesting

Agronomic crops provide food, feed grain, oil, and fiber for domestic consumption and are a major component of US export trade. In Pennsylvania, agriculture is one of the most important industries. Visit Penn State Extension’s vast resources to find information on planting, growing, and harvesting agronomic crops such as corn, barley, canola, rye, soybeans, hemp, and wheat. Find the best tips on no-till crop management and crop rotation.

Agronomic Crops Production

A wide variety of agronomic crops are grown in the United States, including corn, soybean, small grains, specialty crops such as malting barley, canola, and industrial hemp, rye, and wheat.

Different factors have to be considered if you want good quality crops and high production. For example, sweet corn production requires a low initial investment and many field operations can be custom-hired. Corn can be grown and harvested for silage where cropland is limited. Nutrient management is also fundamental when it comes to corn and bean production. An integrated pest/crop management strategy also plays an important role in successful agronomic production.

For optimum yield, planting at the right time, temperature, and spacing are crucial. Small grain crops, for example, are currently maturing earlier than normal, thanks to warmer temperatures during the winter and a higher growing degree day accumulation than normal. Wet weather can delay wheat planting, but issues such as these can be overcome if you factor variety selection, rotations, seeding depth and rate into your planting decisions.

Soybeans have a long history of production in Pennsylvania and because of the climate, it’s a crop that lends itself well to double-crop soybean production. Penn State Extension offers a number of different resources for anyone interested in soybean production, such as a Soybean Production Field Days and Soybean Production Workshops.

A number of specialty crops are also being grown such as winter barley, malting barley, and industrial hemp. The successful production of these types of crops requires specialist knowledge and understanding. For the production of industrial hemp, for example, a waiver is required from the USDA and the state must also pass legislation approving hemp production and research. In Pennsylvania, Senate Bill 50 was passed out of committee and this allows and promotes trial hemp production in the state.

Anyone thinking about becoming a producer doesn’t have to make all the decisions on their own. There are lots of resources available such as The Penn State Agronomy Guide, which provides comprehensive information on agronomic crops, soil, and pest management for farms of all sizes.

Crop Days, crop conditions reports and Crop Conferences also provide opportunities for you to learn about pesticide and nutrient management, the latest innovations for the coming seasons as well as courses to help you become a Pennsylvania Certified Crop Adviser. These professionals are well-versed in the crop scouting fundamentals for all the agronomic crops grown in the US today.

Seed Choice and Crop Rotation

If you want a healthy crop next season, there are decisions to be made before you put a single seed in the ground. Hybrid (corn) or variety (soybean) selection is important for successful crop production.

Should you, for example, base your decision on disease resistance ratings? Is it better to look for corn insect-resistant traits? Equally important is the quality of the seed, as it can serve as a vehicle for unwanted pathogens and weeds.

Crop rotation can play a vital role in maximizing profitability of agronomic crops. It increases crop yields by improving soils conditions and reducing weed and insect populations and helps producers use conservation tillage successfully.

No-till Agronomic Crops Production and Best Practices

No-till farming isn’t a new farming practice, but there are lots of things to be aware of when transitioning to that method. No-till is becoming more popular because it’s considered a more sustainable way to produce crops, as it improves soil and water conservation. However, it’s a method that requires commitment and perseverance and you could benefit from access to no-till crop management tips.

Field Crops Harvesting and Yield Assessment

Being able to estimate grain yield, field corn yield, and soybean yield early in the growing season is vital for agronomic crop producers. It’s required for crop insurance purposes, delivery estimates, planning harvest and storage requirements, and cash-flow budgeting.

Knowing the optimum time to harvest crops is another skill producers have to learn. Picking the right moment means losses will be minimal and profits increased. With some crops, the harvesting window is just a few days, making it all the more crucial to get the timing right.

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  1. The left plot received no fertilizer nitrogen, while the right was provided with 50 units of N at green-up, resulting in a significant increase in crop density, height, and appearance. Image Credit: J. Brackenrich, Penn State Extension.
    Articles
    Nitrogen Rate and Source Effects on Grass Hay Yield and Quality
    By Justin Brackenrich, Guojie Wang
    In Pennsylvania, nitrogen is often the most limiting resource in grass hay production, leading to reduced production quantity and quality. With improved nitrogen management, producers could increase yields by as much as 75%, while also significantly impacting production costs.
  2. Soybeans growing in cereal rye mulch that was terminated after planting. Credit: Grant Hoffer, 2023
    Articles
    Planting Green with Reduced Herbicides Improves No-Till Soybean Production
    By John Wallace, Ph.D., Grant Hoffer
    Planting green increases cereal rye biomass and can increase soybean yield compared with earlier termination or no rye. With a 1-pass program, it provided late-season weed control and yields similar to a 2-pass program without cover crops.
  3. Crimson clover and spring oat mixture in late spring. Credit: Grant Hoffer, 2024
    Articles
    Evaluating Nurse Crops to Improve Legume Cover Crop Performance
    By John Wallace, Ph.D., Grant Hoffer
    Performance of winter-hardy legume cover crops can improve with the use of a winter-killed oat nurse crop compared to cereal rye, including at later sowing dates. Legume performance varies widely based on weather conditions near establishment, but crimson clover and hairy vetch are the most consistent performers.
  4. A soil sample is collected for nematode testing. Note the soil in the bucket. Photo credit: A. Murillo Williams, Penn State Extension
    Articles
    Proactively Monitoring Plant-Parasitic Nematodes in Soybean Fields
    By Paul D. Esker, Alyssa Collins, Ph.D., Adriana Murillo-Williams
    Proactive nematode monitoring is essential for protecting soybean yields in Pennsylvania. Early detection and science-based management strategies can significantly reduce economic losses and ensure long-term crop sustainability.
  5. Soybean plant showing typical symptoms of white mold; Image Source: P. Esker, Penn State Extension
    Articles
    Development and Application of the Crop Manager Data Platform
    By Paul D. Esker
    The Open Crop Manager platform has collected over 15,000 scouting reports across 14 North Central Soybean States since 2022, providing growers with diagnostic aids and supporting research to improve soybean yield and profitability through data-driven insights.
  6. A recently planted “planting-green” plot; Jared Adam, Penn State
    Articles
    Exploring the Value of Planting Green for Insect and Slug Control
    By John Wallace, Ph.D., John Tooker, Ph.D., Jared Adam, M.S
    Our study showed that delaying cover crop termination and planting crops into living cover crops (“planting green”) can increase predator populations, which then limit the abundance of insect and slug pests and reduce the need for pesticides.
  7. Photo was taken standing between 30-inch no-till planted soybeans around the V3 growth stage.
    Articles
    Foliar Fertilizers and Sugars in Soybeans
    By Daniela Carrijo, Paul D. Esker
    In the absence of plant nutritional deficiency symptoms, foliar fertilizers did not increase yield. While the application of sugar-based products helped to alleviate crop injury symptoms caused by Cobra herbicide, it did not increase yield.
  8. Testing supplies for agricultural commodities. Photo Credit: Stephen Campbell, Penn State Extension
    Articles
    Where to Test Agricultural Commodities: A Lab Guide
    By Stephen Campbell, M.S, Erin Cuprinka, Mattie Sue Horchler, Austin Brown, Glen Bupp, Olivia Watson
    A comprehensive guide for Pennsylvania farmers on where to test agricultural commodities, featuring lab options, sample tips, and tools for better farm management decisions
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