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Remember to scout early-planted soybeans


Tom J. Bechman
WIDE WINDOW: Sporadic weather conditions in early spring contributed to soybean planting being spread out this year. This field was planted April 9. Don’t neglect scouting early beans if you’re still planting.
Soybean Watch: Keep an eye on soybeans that are already growing while you’re still planting.
Suggested Event
Jun 15, 2021 to Jun 17, 2021
A relatively warm, dry spell in early April led to planters running in parts of the eastern Corn Belt, especially in southern counties. Many of those planters during the first couple weeks of April were planting soybeans.
Early-planted soybeans tended to yield better than later-planted fields in 2020, although there were exceptions, notes Steve Gauck, a regional agronomy manager for Beck’s based near Greensburg, Ind. Beck’s sponsors Soybean Watch ’21. Exceptions were some later-planted fields that still yielded well. Almost all soybeans planted early in 2020, ....

Steve Gauck , Shaun Casteel , Purdue University Corn Soybean Field , Purdue University Extension , Beck Practical Farm Research , Corn Belt , Soybean Watch , Purdue University Corn , Soybean Field Guide , Practical Farm Research , ஷான் சாதி , பர்‌ட்யூ பல்கலைக்கழகம் சோளம் சோயாபீன் புலம் , பர்‌ட்யூ பல்கலைக்கழகம் நீட்டிப்பு , பெக் ப்ர்யாக்டிகல் பண்ணை ஆராய்ச்சி , சோளம் பெல்ட் , சோயாபீன் வாட்ச் , பர்‌ட்யூ பல்கலைக்கழகம் சோளம் , சோயாபீன் புலம் வழிகாட்டி , ப்ர்யாக்டிகல் பண்ணை ஆராய்ச்சி ,

Why some pull leaf samples at pollination


Final sampling time
Samples were pulled at the V5 stage in 2020. Zinc was borderline. Adding it might have boosted yields, even though zinc was added with the starter. At the 12-leaf stage, tissue tests showed that key nutrient levels for nitrogen and potassium were dropping, most likely because the field had just suffered through a very dry period. Rain refreshed the plants, but nutrient levels weren’t up yet when samples were taken hours after the rain.
The recommended time to take the third sample if you’re only taking three is at R1, Bower says. According to the Purdue University Corn and Soybean Field Guide, it’s just before pollination and silking. By R2, kernels have formed blisters. In the Corn Watch 2020 field, samples were pulled at R2, which is still valuable information. ....

Purdue University , United States , Betsy Bower , Ceres Solutions , Purdue University Corn , Corn Watch , Genetics Direct , Soybean Field Guide , பர்‌ட்யூ பல்கலைக்கழகம் , ஒன்றுபட்டது மாநிலங்களில் , பந்தயம் போவர் , சிஇஆர்இஎஸ் தீர்வுகள் , பர்‌ட்யூ பல்கலைக்கழகம் சோளம் , சோளம் வாட்ச் , ஜெநெடிக்ஸ் நேரடி , சோயாபீன் புலம் வழிகாட்டி ,

Apply hula-hoop method to determine soybean stands


Tom J. Bechman
ROLL THE HOOP: Jim Facemire, Edinburgh, Ind., counts plants within the hula hoop after rolling it in a random spot within the field.
Once you determine stands, figure out if enough plants are present.
How do you determine if you have enough soybean plants to leave the stand? Shaun Casteel, Purdue University Extension soybean specialist, is working on a way to make that decision based on a drone flight. Until he does, your best option is field scouting, using a hula-hoop rolled at random in several places within a field to determine average stand count.
Casteel says the key is to take those stand counts early, when soybeans are no bigger than the VC stage, with a pair of unifoliate leaves extended over the cotyledons. ....

Steve Gauck , Shaun Casteel , Purdue University Extension , Purdue University Extension Corn Soybean Field , Purdue University Extension Corn , Soybean Field Guide , Purdue Guide , ஷான் சாதி , பர்‌ட்யூ பல்கலைக்கழகம் நீட்டிப்பு , பர்‌ட்யூ பல்கலைக்கழகம் நீட்டிப்பு சோளம் சோயாபீன் புலம் , பர்‌ட்யூ பல்கலைக்கழகம் நீட்டிப்பு சோளம் , சோயாபீன் புலம் வழிகாட்டி , பர்‌ட்யூ வழிகாட்டி ,