What final live plant population should I target?
In Mississippi, cotton plant populations can vary from 30,000 to 55,000 plants per acre without seriously affecting yields, but 40,000 to 50,000 plants per acre is a good final target. This translates to a desired final population of 3 to 3.5 plants per row foot in 38-inch rows. Growers should avoid high plant populations because they can, 1) shorten the boll loading period, 2) decrease drought tolerance, 3) increase fruit shedding, and 4) increase number of small bolls. Extremely low populations should also be avoided because they can, 1) encourage vegetative development and large plant size, 2) delay reproductive development, 3) shift more bolls to outer fruiting branch positions and to vegetative branches, and 4) increase boll size and micronaire in key fruiting positions.
Seeding rate should be based on number of seed per row foot, rather than pounds of seed per acre. For example, if planting conditions are good and the desired population is 45,000 plants per acre, then the standard germination percentage should be a good predictor of emergence. If the standard germination is 80 %, then 45,000 divided by 0.80 equals 56,250. This means that 56,250 seeds should be planted per acre (same as 4 seeds per row foot in 38-inch rows) to attain a final stand close to 45,000 plants per acre (3.3 plants per row foot in 38-inch rows). Consider the scenario that the weather unexpectedly turns cool. Then, you expect field emergence to be close to the cool germination percentage (60 % in this case). For example, you would expect a final stand of about 33,750 [56,250 x 0.6] (2.5 plants per row foot in 38-inch rows), which is still within the acceptable range.
ELLISVILLE, Miss. -- Mississippi State University representatives met with agricultural clients in Ellisville recently to discuss research and education needs for 2018. More than 115 individuals attended this year's event.
STARKVILLE, Miss. -- Two highly anticipated online training modules are now available for those who plan to purchase or apply dicamba and similar herbicides.
The Mississippi State University Extension Service, in cooperation with the Mississippi Department of Agriculture and Commerce Bureau of Plant Industry, developed these new online training courses related to herbicides labeled for use with dicamba-tolerant cotton and soybeans in response to label changes from the Environmental Protection Agency.
STARKVILLE, Miss. -- In response to new Environmental Protection Agency regulations on the use of the herbicide dicamba, the Mississippi State University Extension Service is developing two online training courses to help cotton and soybean farmers follow the new rules.
STARKVILLE, Miss. -- The 2017 production value of Mississippi’s four largest row crops is forecasted to outperform the previous year by more than 7 percent.
Brian Williams, agricultural economist with the Mississippi State University Extension Service, predicted the combined value of soybeans, cotton, corn and rice will be nearly $2.1 billion this year. The total projected value for all agronomic crops is $2.5 billion, which would be a 6.4 percent increase over the $2.4 billion value reached in 2016.
STARKVILLE, Miss. -- Cover crop usage is gaining momentum on Midsouth farms and will be a major focus of the 2017 Mississippi State University Row Crop Short Course.
The MSU Extension Service will host the course at the Mill Conference Center in Starkville Dec. 4-6.