азотное питание | Библиотека ELiS

Grain quality forecasting by amino acid concentration in the leaf juice

Submitted by Гость (not verified) on Tue, 09/10/2024 - 22:38

Field experiments with soft wheat and malting barley, conducted on sod-podzolic medium loamy soil showed that under the influence of increasing rates of nitrogen nutrition in the leaf juice in the first stem node phase, the concentration of amino acids decreases. This fact is confirmed by high correlation coefficients. There is also a close correlation between the concentration of amino acids in the leaf juice, plant productivity and grain quality indicators.

Plant production processes and nitrogen metabolism of chinese cabbage (Brassica chinensis L.) when grown under led illumination

Submitted by Гость (not verified) on Tue, 07/09/2024 - 16:45

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The paper describes two series of experiments with Chinese cabbage (Brassica chinensis L.). The authors studied the productivity of crops and distribution of dry matter and nitrate pool in plant tissues. Plants were grown in a non-circulating passive hydroponic installation under white and red LEDs in nutrient solutions with various nitrogen concentrations (nitrate -from 40 to 150 mg/l, ammonia -from 0 to 70 mg/l). The study found positive correlation between the accumulation of dry weight of plants and the nitrogen concentration in the nutrient solution in the range from 40 to 120 mg/l.

Effect of nitrogen nutrition on yield and yield structure elements of spring barley varieties bred by FRC “Nemchinovka”

Submitted by Гость (not verified) on Tue, 07/09/2024 - 16:45

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The response of ten spring barley varieties bred by FRC “Nemchinovka” to increasing nitrogen nutrition has been studied. A positive effect of nitrogen fertilisation on the yield growth and the main elements of barley yield structure was found. The varieties Nadezhnyi, Raushan and Zlatoyar were highly responsive to more intensive nitrogen nutrition.