Evaluation and control of the nutritional status of cereals

Abstract

Methods of quantitative diagnosis of the nutritional status of the young plant and quantitative prognosis of final yield were based on preliminary models constructed by using selected results ('pure'-effect data) from pot experiments with oats and spring wheat. The bases of the models -a fixed dry matter weight level of aerial parts of the plant and absolute and relative reference values -and the procedure by using the models were tested by relationships between predicted and obtained final yields. Highly significant correlation coefficients > 0.9 (p < 0.001) were found.

Asymetria wiedzy a aktywność informacyjna konsumentów na rynku produktów żywnościowych

“…Według badania przeprowadzonego przez AC Nielsen, 17% badanych Polaków w ogóle nie rozumie informacji żywieniowej umieszczonej na etykietach i opakowaniach żywności, a 47% rozumie ją częściowo, podczas gdy analogiczne dane np. dla Ameryki Północnej to: 3% i 33% [Nielsen 2008].…”

Evaluation and control of the nutritional status of cereals

“…Prerequisites to obtain clear and reproducible relationships were: 1) a well-defined stage ofdevelopment of the young plant-a fixed Dry Matter weight level (DMw-level) -as the basis for the chemical composition 2 2) values of reference for estimating absolute and relative nutrient deficiency or excess based on the concept of pure-effect of any nutrient at a fixed DMw-level on final yield a A complete quantitative fertilization system was developed based on the above relationships and comprised:…”

“…estimation of the nutritional status of the young plant based on quantity and quality of yield 7 The present work deals with the possible transfer of the above fertilization system to cereals grown under field conditions with emphasis on control of quantity of grain yield. estimation of the nutritional status of the young plant based on quantity and quality of yield 7 The present work deals with the possible transfer of the above fertilization system to cereals grown under field conditions with emphasis on control of quantity of grain yield.…”