scholarly journals Effect of Amino Acid and Titanium Foliar Application on Smooth-Stalked Meadow Grass (Poa pratensis L.) Macronutrient Content

2021 ◽  
Vol 11 (23) ◽  
pp. 11421
Author(s):  
Adam Radkowski ◽  
Iwona Radkowska ◽  
Jan Bocianowski ◽  
Karol Wolski ◽  
Henryk Bujak

As plant growth stimulants, Ti and amino acids affect physiological processes of plants, promoting their vegetative and generative development and improving their yield and its quality. An experiment was carried out at the Experimental Station of the University of Agriculture in Krakow on degraded black earth soil formed from loess. Its aim was to determine the effect of two products, one containing amino acids and the other with Ti, on the Poa pratensis yield and its quality. Foliar application of amino acids and Ti, used on their own and together, constituted the main factor of the experiment. It was found that the treatment with both stimulants applied together significantly affected plant parameters. Compared to control, plants treated with those growth stimulants produced higher dry matter yields and contained significantly more phosphorus, potassium, calcium, magnesium, and sodium in dry matter. The highest effect was recorded on plots where combined application of amino acids and Ti was used. Almost as good results were recorded when amino acids were applied on their own. Regarding the cuts, higher effects were noted in the first and second ones than in the third. The growth stimulants used in the present experiment had a positive effect on the chemical composition of Poa pratensis meadow plants. The results indicated that the treatment significantly increased macronutrient content, compared to control plants. The most favourable effects were recorded for plants on the plot with combined application of amino acids and Ti. Similar results were also obtained on plots where only amino acids were used. Regarding the harvests, better results were noted in the first and second ones than in the third. In view of the potential benefits, it would be advisable to extend and update research on the effects of these stimulants on other common varieties of forage grasses.

2019 ◽  
Vol 38 (4) ◽  
Author(s):  
G. Rajitha ◽  
M. Srinivasa Reddy ◽  
P.V. Ramesh Babu ◽  
V.Uma Maheshwari

Groundnut is an important edible oilseed crop of our country and edible oil economy primarily depends upon groundnut production. Secondary and micronutrient fertilization is essential for enhancing the productivity of groundnut crop. Calcium, Magnesium and Sulphur requirements are highest in oil seed crops followed by pulses and least in cereals. The response of groundnut to secondary and micronutrients was studied on sandy loam soils. Combined foliar application of secondary and micronutrients along with RDF recorded significantly highest pod yield of 2654 kg ha-1 and haulm yield of 3603 kg ha-1 as compared to RDF (1500 and 2551 kg ha-1 of pod and haulm yield, respectively) and also the highest uptake of primary nutrients (N, P and K) by haulm and pod at harvest which might be because of highest dry matter production with the combined application of all the nutrients.


Agronomy ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1202
Author(s):  
Tomasz Dziugieł ◽  
Wanda Wadas

This paper analyzes the effects of the foliar application of the seaweed extracts Bio-algeen S90 (Ascophyllum nodosum) and Kelpak SL (Ecklonia maxima), as well as the humic and fulvic acids in HumiPlant (leonardite extract) on the macronutrient content in tubers of very early potato cultivars (‘Denar’, ‘Lord’, ‘Miłek’) and their ionic ratios. The field experiment was carried out in central-eastern Poland over three growing seasons, using Haplic Luvisol. The biostimulants were applied according to the manufacturers’ recommendations. Potatoes were harvested 75 days after planting. The use of biostimulants increased potassium (K) content in tubers, on average, by 1.26 g∙kg−1 of dry matter compared with the untreated control tubers. Bio-algeen S90 did not affect the phosphorus (P) content in tubers, whereas Kelpak SL and HumiPlant reduced the phosphorus content, on average, by 0.063 g∙kg−1 of dry matter. The biostimulants did not affect calcium (Ca), magnesium (Mg), or sodium (Na) content in tubers. The use of biostimulants resulted in an increase in the mass ratios of K+:Ca2+, K+:Mg2+, and (K+ + Na+):(Ca2+ + Mg2+) in early crop potato tubers, compared with the untreated control tubers, but did not affect the mass ratios of Na+:Ca2+ and Na+:Mg2+ or the mass ratio of Ca:P. The macronutrient content in early crop potato tubers and their ionic ratios depended on the cultivar and environment conditions.


Biochar ◽  
2021 ◽  
Author(s):  
Jing Peng ◽  
Xiaori Han ◽  
Na Li ◽  
Kun Chen ◽  
Jinfeng Yang ◽  
...  

AbstractCombined application of biochar with fertilizers has been used to increase soil fertility and crop yield. However, the coupling mechanisms through which biochar improves crop yield at field scale and the time span over which biochar affects carbon and nitrogen transformation and crop yield are still little known. In this study, a long-term field trial (2013–2019) was performed in brown soil planting maize. Six treatments were designed: CK—control; NPK—application of chemical fertilizers; C1PK—low biochar without nitrogen fertilizer; C1NPK, C2NPK and C3NPK—biochar at 1.5, 3 and 6 t ha−1, respectively, combined with chemical fertilizers. Results showed that the δ15N value in the topsoil of 0–20 cm layer in the C3NPK treatment reached a peak of 291 ‰ at the third year (2018), and demonstrated a peak of 402 ‰ in the NPK treatment in the initial isotope trial in 2016. Synchronously, SOC was not affected until the third to fourth year after biochar addition, and resulted in a significant increase in total N of 2.4 kg N ha−1 in 2019 in C3NPK treatment. During the entire experiment, the 15N recovery rates of 74–80% were observed highest in the C2NPK and C3NPK treatments, resulting in an annual increase in yields significantly. The lowest subsoil δ15N values ranged from 66‰ to 107‰, and the 15N residual rate would take 70 years for a complete decay to 0.001% in the C3NPK. Our findings suggest that biochar compound fertilizers can increase C stability and N retention in soil and improve N uptake by maize, while the loss of N was minimized. Biochars, therefore, may have an important potential for improving the agroecosystem and ecological balance. Graphic abstract


2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 175-175
Author(s):  
Élisabeth Chassé ◽  
Frédéric Guay ◽  
Marie-Pierre Létourneau-Montminy

Abstract This study was conducted to determine the effect of pelleting on the digestibility of corn-soybean meal-based diet in growing pigs. Two trials with 6 pigs cannulated at the distal ileum were conducted. In each trial, pigs were assigned to each treatment following a crossover design. In each experiment, the same diet, composed of corn and soybean meal with 10% wheat from two different feed mills, was served in pellet or mash form. Pelleting allowed an increase in digestibility in one of the trials. Apparent ileal digestibility (AID) of dry matter (DM), crude protein (CP) and digestible energy (DE) were improved with pelleting by 8, 12 and 9% (P< 0.01). The AID of amino acids (AA) was also improved (P< 0.05). Apparent total tract digestibility (ATTD) was increased by pelleting in DM, CP and DE by 5, 7 and 6% respectively (P< 0.01). The digestibility of the mash diet in experiment 1 was lower than in the pelleted diet in the experiment 1 and both diets in experiment 2 as shown by the interaction Pelleting X Trial which was significant for the AID and ATTD of DM, CP and DE (P< 0.01). Therefore, in experiment 1, pelleting allows to improve the digestibility of diet to the same level as in experiment 2. The AID of CP was higher by 37% in the mash diet from the second experiment compared to the one in the first experiment. Even though the same ingredients were chosen in the two experiments, this shows the variability in digestibility existing between different feed mills and ingredient sources. This difference was not observed in pelleted diets. The results obtained in these two trials show that pelleting can reduce the variability of digestibility and then give a good digestibility of diets even if the ingredients are of different quality or sources.


1976 ◽  
Vol 56 (3) ◽  
pp. 451-456 ◽  
Author(s):  
M. IVAN ◽  
J. P. BOWLAND

Four castrated pigs, each fitted with a re-entrant cannula in the terminal ileum, were used to study digestion in the small intestine. A nitrogen-free diet was used for the estimation of metabolic nitrogen and amino acids. Faba beans, as the sole source of dietary protein, were used raw or after autoclaving for 30 or 60 min. The four diets were fed to the pigs in a 4 × 4 latin square experiment. The pigs were fed each diet for 6 days prior to a 24-hr collection of total ileal contents. Autoclaving of faba beans had no significant effect on digestibility of dry matter, gross energy, nitrogen and individual amino acids except arginine, which was significantly increased. The intestinal uptake of arginine was the highest and of cystine the lowest in all faba bean diets. It was concluded that autoclaving faba beans had no beneficial effect on the digestion of nutrients in the small intestine of the pig.


Plants ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 599
Author(s):  
Živilė Tarasevičienė ◽  
Aloyzas Velička ◽  
Aurelija Paulauskienė

Phenolic compounds have a number of benefits to human health and can be used as preventive compounds for the development of some chronic diseases. Mentha plants are not only a good source of essential oils, but also contain significant levels of wide range of phenolic compounds. The aim of this research was to investigate the possibility to increase phenols content in Mentha plants under the foliar application with L-phenylalanine, L-tryptophan, L-tyrosine at two concentrations (100 mg L−1 and 200 mg L−1) and to create preconditions for using this plant for even more diverse purposes. Quantitative and qualitative analyses of phenols in mints were performed by HPLC method. Foliar application of amino acids increased the total phenol content from 1.22 to 3.51 times depending on the treatment and mint variety. The most pronounced foliar application to total phenols content was tryptophane especially in Mentha piperita “Swiss”. Mentha piperita “Swiss” was affected most by foliar application and the amount of total phenolic acids depending on the treatment ranged from 159.25 to 664.03 mg 100 g−1 (DW), respectively, non-sprayed and sprayed with tryptophane 100 mg L−1. Our results suggest that the biophenol content varies according to such factors as foliar application and variety, and every single mint variety has individual response to different applications of amino acids.


Author(s):  
K. Leshchukov ◽  
V. Masalov ◽  
N. Yarovan ◽  
M. Kotаlnikova ◽  
A. Mamaev

Purpose: to study the effect of feeding lactating cows with a feed additive enriched with a biocomplex of free L-amino acids of plant origin on the indicators of functional homeostasis, productivity and quality characteristics of milk.Materials and methods. Research and production tests were carried out on the basis of the OS "Streletskaya" branch of the Federal State Budgetary Scientific Institution "Federal Research Center of Legumes and Groats". To conduct scientific and production tests, 2 groups of cows of 3-4 lactation were formed, 70 heads each. The groups were formed on the principle of analogous pairs.The cows of the experimental group, starting from the second day after calving, in the morning, once a day, received a granulated feed additive "ZEO-AMINO" (Russia) fraction 0.2-0.7 mm at the rate of 2% of the dry matter of the ration daily for the first 100 days lactation. Experimental animals were monitored daily. Clinical examination of animals was carried out with obligatory control of the general condition, thermometry, counting of respiratory movements and rumen contractions, assessment of the udder condition. The productivity of cows was determined according to the results of control milking. Morphological and biochemical blood tests were performed.Results. It was revealed that the daily use of a granular feed additive of fraction 0.2-0.7 mm, starting from the second day after calving, once a day at the rate of 2% of the dry matter of the diet during the first 100 days of lactation, contributes to an increase in the average daily milk yield of cows on average by 15.9%; by 7 months lactation, an increase in the average daily milk yield was established by an average of 18.3%. It was found that feeding the supplement to cows after calving due to better absorption of nitrogen in the diet and accumulation of proteins in the animal's body allows partially neutralizing the negative consequences of negative energy balance after calving, and contributes to a more intensive recovery of live weight loss, which is reliably confirmed by indicators of animal productivity. The results of a biochemical blood test suggest that the use of a feed supplement in obtaining milk has a positive effect on the assimilation of the diet, metabolism and assimilation processes in the body, activates a number of vital functions during the normal course of physiological processes and ensuring functional homeostasis, which ultimately determines increasing the milk production of animals. Analysis of the quality indicators of milk allows us to conclude that the mass fraction of fat when feeding the additive increased by an average of 0.12 abs. %; the mass fraction of protein increased by an average of 0.22 abs.%.Conclusion. To increase milk productivity, reduce the negative effects of negative energy balance after calving, and more intensively restore body weight loss, as well as increase the efficiency of using feed proteins and normalize metabolic processes, it is recommended that daily use of the feed granulated dietary supplement "ZEO-AMINO" fraction in the diets of dairy cows 0.2-0.7 mm at the rate of 2% of the dry matter of the diet, starting from the second day after calving, once a day during the first 100 days of lactation.


1989 ◽  
Vol 29 (1) ◽  
pp. 69 ◽  
Author(s):  
GJ O'Leary ◽  
RM Binns ◽  
TR Lewis

The effects of delaying chemical fallowing in a pasture rotation on pasture quality and subsequent wheat yield were investigated at sites near Minyip and Charlton, Victoria, in 1983 and 1984. Three chemical fallows were commenced at different times and were compared with a conventionally cultivated fallow. The earliest chemical fallow was established, together with a conventional fallow, at the end of winter. The second chemical fallow commenced towards the end of the rapid spring growth period in mid-October (early hayfreezing), and the third in mid- November (late hayfreezing) on a grass-dominant pasture. The pasture in spring ranged from 51 to 72% digestible dry matter (DDM) but the quality declined to 42-50% DDM by the end of the fallow treatments in autumn at each site in both years. Weathering of the pasture over summer reduced it to roughage. In contrast to a conventional fallow, early hayfreezing of pasture reduced the yield of subsequent wheat crops at Minyip by 14% in 1984 and 26% in 1985. Late hayfreezing caused losses of around 35% in each year at Minyip. At Charlton yield losses were much lower with only 14% loss observed from late hayfreezing in 1985. Because the feed produced by hayfreezing was of very poor quality, hayfreezing cannot be recommended as a viable fodder conservation method as it could not adequately compensate for any yield loss.


Sign in / Sign up

Export Citation Format

Share Document