One constant for the Reints has been their commitment to banding fertilizer in the strip because it saves time, fuel and fertilizer costs. CSR-corn suitability rating. At the first National Strip-Tillage Conference in Cedar Rapids, Iowa, the Reints shared research, comparing broadcast application of fertilizer in a conventionally tilled cornfield with banded application in strip-tilled field.
To illustrate their comparison, — see video below — they pulled corn plants from the two different fields and mounted 8 plants on a board, 6 inches apart, to represent a 34, planting population. The Reints then weighed, on a gram scale, the exact amount of potassium K , phosphorus P and sulfur applied for a bushel-per-acre yield goal. For the broadcast application, they applied pounds per acre of diammonium phosphate , pounds per acre of potassium chloride and pounds per acre of ammonium sulfate They applied pounds of diammonium phosphate, 75 pounds of potassium chloride and 75 pounds of ammonium sulfate.
The longtime no-tiller and strip-tiller builds his fertilization strategies around the philosophy that like humans, crops need to eat on a regular basis to grow and remain healthy. We know that corn plants determine how many rows will be around an ear at V3 stage, and how long that ear will be at V8. The cornerstone of his split-application system is the banded placement of nutrients in spring with the strip-till rig. Then a second application system of the dual-tube knife applies about 10 gallons per acre of a blend from Indiana-based CarboTech America, a direct liquid fertilizer supplier.
I want that soil profile to be layered with nutrition, eliminating our corn from being pale yellow until it finally runs into the fertilizer hot spot. They comply and get along with the teachers in order to achieve in their exams. In a sense the teacher is their instrument. Opportunism is an adaptation that will develop usually in the second year at school but may be temporary before the pupil develops their stable attitude to school.
Opportunist pupils change between trying to gain the approval of their teachers and their peers. Ritualists are deviants but only to the extent that they reject the goals of education. Retreatists reject both the goals and means laid down by the school. However, they are not outright rebellious. Colonizers attach no great importance to academic success. But will try to get away with enough to stay out of trouble. They will copy or cheat if they think they can get away with it.
In the early s, Professor Eric Bolton, the former senior chief inspector of schools in England, said few teachers could do it effectively.
He believed that "most teachers aim for the middle: The bright children are frustrated and the ones at the bottom get left behind". The latest picture is given by this year's annual report of the chief inspector of schools which says "almost all" secondary schools set or band pupils by ability. The extent of setting varies greatly from subject to subject. Three-quarters of maths lessons observed by inspectors used ability sets and it was used in well over half of all lessons in science and foreign languages.
Very few PE, art or music lessons involved setting. Anyone seeking definitive advice on which method is best will, I fear, be disappointed by the chief inspector's conclusion that "there is no clear statistical link between the extent of setting in schools and the attainment of pupils".
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