Uptake and Utilization of Nitrogen from Organic Fertilizers Influenced by Different Doses of Copper

Abstract

Copper is a microelement involved in the metabolism of nitrogen compounds in plants. Good utilization of nitrogen from soil and fertilizers by plants requires an adequate supply of copper. The aim of the study was to determine the effect of increasing levels of copper (100, 200, and 300 mg Cu·kg−1 of soil) applied together with various organic fertilizers (cattle manure, chicken manure, and spent mushroom substrate) on nitrogen content and uptake by cocksfoot (Dactylis glomerata L.) and the coefficient of nitrogen utilization from organic fertilizers. The pot experiment was carried out in three growing seasons (May–September) in greenhouse, and in this cocksfoot was grown and harvested four cuts in each year. Copper and organic fertilizers were applied once in the first year before sowing cocksfoot, and the after-effect was investigated in the second and third years. Application of different amounts of copper did not influence the nitrogen content in the biomass of cocksfoot. At the same time, soil application of this micronutrient in the amount of 100 mg Cu∙kg−1 of soil caused an increase in nitrogen uptake in the biomass of cocksfoot. Application of 100 and 200 mg Cu·kg−1 of soil caused an increase in the coefficient of nitrogen utilization from the organic fertilizers, which was highest effect in the case of cattle manure. All of the organic materials used increased the content of nitrogen and its uptake by cocksfoot, but the greatest effect was noted following application of chicken manure. The study showed no synergistic or antagonistic relationships between copper and nitrogen.

Mineral Materials as a Neutralizing Agent Used on Soil Contaminated with Copper

“…With regard to the content of copper in soil and nitrogen in plant biomass, there are a number of studies confirming the synergism between these elements. Such results were obtained by Kuziemska et al [63]. In that research, the nitrogen content of cocksfoot grass biomass increased in the first year of cultivation as a result of the increasing copper content in the soil (100-300 mg Cu kg −1 ).…”

Effect of addition of organic manures on basmati yield, nutrient content and soil fertility status in north-western India

“…The increase in macronutrients uptake might be due to the increased yield of grain and straw as well as the introduction of certain amount of N through organic manures. The different results of N uptake under different treatments were due to the different nitrogen content in organic fertilizers as well as their different mineralization rates in the soil [ 45 ]. Poultry manure enhances soil characteristics, allowing for the establishment of a larger root density and reduced leaching, which enhances the crop's nutrient-absorption capability thus increasing nutrient uptake in crop.…”

Impact of manures and fertilizers on yield and soil properties in a rice-wheat cropping system

“…When FYM was applied with a 75% NPK fertilizer, N absorption was found to increase in the case of wheat straw. The FYM has a higher C:N ratio, which resulted in the immobilisation of N [33], while the sole application of inorganic fertilizers led to N loss because of leaching as well as volatilization [34,35]. Farmyard manure improved soil properties, thus resulting in higher root density and reduced leaching, which improved the nutrient absorption capability of the crop.…”