Determining the right corn plant population

first_imgShare Facebook Twitter Google + LinkedIn Pinterest By Matt Hutcheson, CCA, Product Manager, Seed Consultants, Inc.One factor that greatly influences corn yields is plant population. Determining the correct plant population may take some effort, however, it is a critical factor that every corn grower needs to get right in order to maximize yields. Recent research performed by universities and seed companies has determined that that yields increase significantly as populations are increased up to a point of 34,000 seeds per acre. In general, yields begin to level off at planting rates around rates 36,000 seeds per acre. Recent studies have also determined that even in low yield environments planting rates of 31,000 seeds per acre maximize yield and economic return. In very productive, 250 bushels per acre yield environments, research results show that higher populations (38,000+ seeds per acre) maximize yields. Breeding and advances in genetics have improved the modern corn plant’s ability to yield at higher populations when compared to corn hybrids from the past.Are your populations too low? Although kernel weight and the number of kernels per ear are important factors in determining yield, yields are driven by the number of ears per acre. Higher numbers of smaller uniform ears will result in better yields than low numbers of large “flex” ears. Keep in mind, flex ears cannot make up for large gaps between plants that exist where populations are too low. In most situations, corn hybrid populations should be at least 32,000 plants per acre. According to Purdue corn agronomist Bob Nielsen: Results from 67 field-scale trials around Indiana suggest that optimum plant population for corn grown under typical yield levels and growing conditions is approximately 32,100 plants per acre or seeding rates of about 34,000 seeds per acre at 95% stand.Determining the correct population for each field may be a challenge, but using university recommendations of 32,000 plants per acre is a good starting point. While rates of 38,000 seeds per acre are too high for much of our sales territory, rates of 28,000 seeds per acre are too low and may be keeping producers from maximizing yields.The challenge in determining the right population is taking into consideration several factors, including: soil type and expected yield levels, flex vs. determinant ears, hybrid stress tolerance, etc. Below are some key points to keep in mind when determining plant populations.Plant populations should be adjusted based on field yield levels and soil types.Modern hybrids perform best at higher populations when compared to hybrids from the past.Ear flex cannot make up for large gaps in plant stands at a low population.Yield is driven by ears per acre, more ears result in higher yields.Hybrids with below average stress tolerance and flex ears should not be planted at excessively high populations, especially in lower yield environments where plant stress will occur.Determinant-eared hybrids will perform better at higher populations and will maintain uniform ear size.last_img read more

Five naxals held in Chhattisgarh

first_imgFive naxals were arrested from two places in Chhattisgarh’s insurgency-hit Bijapur district, the police said on Tuesday.While three cadres were picked up from Potenar village under Jangla police station limits, two others were held from the forest of Basaguda police station area on Monday, a local police official told PTI. Separate teams of District Force and Central Reserve Police Force (CRPF) were involved in these operations.Those arrested from Jangla area are identified as Lekam Balram (38), Alma Rama (32) and Aalam Pandu (51) who all are lower-rung cadres, he said, adding that Balram and Rama were carrying reward of ₹10,000 and ₹5,000, respectively, on their heads.Two cadres who were arrested from the forest of Chipurbhati and Putkel villages are identified as Veko Podia (27) and Punem Hunga (27), both active members of Dandakaranya Adivasi Kisan Majdoor Sangthan (DAKMS), a frontal wing of Maoists, he said.They all were allegedly involved in incidents of torching vehicles, putting up Maoist pamphlets and posters and damaging roads, the official said.last_img read more

Meerut police bust girl kidnapping case

first_imgMeerut police busted an alleged case of interfaith kidnapping when it recovered the girl, a minor, from Chandigarh on Thursday. The policemen were shocked when they discovered that the kidnapper was a man named Abhishek, who not only belonged to the same village as the girl but was also of the same caste.The girl’s brother had lodged an FIR under Section 363 of the IPC against three Muslim men who lived in the neighbourhood.Police sources say that he was instigated by a local leader who claimed to represent Hindu Yuva Vahini.On July 18, Mini (13, named changed), a resident of Rasoolpur Aurangabad village that falls under Bhawanagar police station, was coming from tuition when she was allegedly kidnapped by unidentified men. Her brother Ajay Kumar lodged an FIR.On July 22, a group of villagers protested in front of the SSP office in Meerut alleging that it was an interfaith case and demanded action against Nafis, Aas Mohammed and Shakeel, who lived in the neighbourhood.Booked under POCSO“On Thursday, the police recovered the girl from Chandigarh and booked culprit Abhishek under relevant sections of the POCSO Act,” Avinash Pandey, SP (Rural), Meerut, told The Hindu. On Friday, the police charged the girl’s brother and others under Sections 153A, 298, 120B of the IPC for promoting enmity.last_img read more

Agreement signed to address escalation of violence racial tensions in Thunder Bay

first_imgDennis Ward APTN National NewsThe Nishnawbe Aski Nation (NAN) along with the Fort William First Nation has signed a statement of commitment with the City of Thunder Bay to improve the lives of Indigenous peoples in a city that seems to be in crisis.Signed on Fort William First Nation Tuesday, the agreement recognizes that the escalation of violent incidents in the city has created a “crisis for the leadership and citizens of Fort William and NAN,” according to a statement released by the three parties.In the agreement, the parties expresses concern for the safety and well-being of Indigenous people who live in and visit the city, especially youth who must relocate from their home communities in order to pursue their education at post-secondary school, college and university.Each party also recognizes the “urgent need to improve relations” among the Indigenous population and non-Indigenous population.Read a copy of the document here: Statement of CommitmentThe agreement follows months of turmoil in Thunder Bay.Thunder Bay’s Acting Mayor Joe Virdiramo signed the document on behalf of the city of Thunder Bay because Mayor Keith Hobbs has stepped aside after being charged with extortion.Two Anishinaabe youth were found dead in the city’s waterways this past May and Ontario’s Chief Coroner asked York Regional Police to investigate the deaths after First Nation leaders called for the RCMP to take over the cases because they had no confidence in the abilities of the Thunder Bay police.The city has also developed a reputation for rampant racism. It has the highest rate of police reported hate incidents against Indigenous peoples in the country.Barbara Kentner, an Anishinaabe woman, died last month from injuries the family believes were inflicted during a targeted assault in January. Kentner was hit with a trailer hitch thrown from a car with four occupants.Only one of the occupants, Brayden Bushby, 18, was charged with aggravated assault. According to Thunder Bay police, investigators are still waiting for a report from Ontario’s coroner before deciding whether to upgrade charges against Bushby.Along with Hobbs, JP Levesque, the city’s chief of police, is also facing criminal charges while the Police Service and its Board are both being investigated by Ontario’s police watchdog.Senator Murray Sinclair was recently appointed as an investigator and tasked to look into the administration of the Thunder Bay police board.The agreement signed on Tuesday recognizes “systemic racism exists in Thunder Bay and must be dismantled.”According to the statement released by the three parties, the commitment calls on the signatories to work collaboratively to ensure the safety and well-being of First Nations students while in the City of Thunder Bay and to work to address issues affecting the health, safety and security of all residents, regardless of ethnicity, in a respectful and appropriate manner.An anti-racism campaign will be developed to eliminate racism against Indigenous people in Thunder Bay by challenging racist, hateful, ignorant discourse directed toward Indigenous people and address systemic racism in organizations and institutions, according to the statement.A “student safety plan” will also be developed.Contact Dennis here: dward@aptn.calast_img read more