scholarly journals Implications of soil nitrogen enhancement on the yield performance of soybean (Glycine max) in cadmium-polluted soil

2021 ◽  
Author(s):  
Beckley Ikhajiagbe ◽  
Matthew C Ogwu ◽  
Ivhobe Izuapa Omoayena
Keyword(s):  
Glycine Max ◽  
Nitrogen Fertilization ◽  
Polluted Soil ◽  
Growth And Yield ◽  
General Control ◽  
Vegetative Development ◽  
N Application ◽  
Nitrogenous Fertilizer ◽  
Growth Development ◽  
Positive Controls

The growth, development and yield of important crop plants like soybean (Glycine max) are constantly under threat by continuous inputs of cadmium in the biosphere as a result of various industrial activities. This study investigated the level to which, addition of nitrogen fertilization can enhance plant survival, growth and yield development in a cadmium-polluted. Three accessions of Glycine max (TGm1, TGm2 and TGm3) were sown in a 12 mg/kg-cadmium polluted, which was thereafter amended with urea (FU), ammonia (FA), and ammonium nitrate (FN) singly and in combinations of equal proportions. A non-fertilized Cd-polluted soil and a general control constituted the negative and positive controls. Results showed that although N application did not enhance yield dispositions of soybean in Cd polluted soil, significant impact on vegetative development was noteworthy. Compared to yield of control plants, cadmium pollution imposed a 26.1 % reduction in per plant yield in TGm1, compared 1.71 % in TGm3. Generally, addition of nitrogenous fertilizer further suppressed crop yield by as much as 80 % in plants sown in cadmium-polluted soil. However, application of ammonia fertilizer to TGm2 improved its yield performances in the cadmium-polluted soil

scholarly journals Implications of soil nitrogen enhancement on the yield performance of soybean (Glycine max) in cadmium-polluted soil.

2021 ◽  
Author(s):  
Beckley Ikhajiagbe ◽  
Matthew Chidozie Ogwu ◽  
Ivhuobe Izuapa Omoayena
Keyword(s):  
Glycine Max ◽  
Polluted Soil ◽  
Growth And Yield ◽  
General Control ◽  
Vegetative Development ◽  
N Application ◽  
Soil P ◽  
Nitrogenous Fertilizer ◽  
Growth Development ◽  
Positive Controls

Abstract The growth, development and yield of important crop plants like soybean (Glycine max) are constantly under threat by continuous inputs of cadmium in the biosphere as a result of various industrial activities. This study investigated the level to which, addition of nitrogen fertilization can enhance plant survival, growth and yield development in a cadmium-polluted. Three accessions of Glycine max (TGm1, TGm2 and TGm3) were sown in a 12 mg/kg-cadmium polluted, which was thereafter amended with urea (FU), ammonia (FA), and ammonium nitrate (FN) singly and in combinations of equal proportions. A non-fertilized Cd-polluted soil and a general control constituted the negative and positive controls. Results showed that although N application did not enhance yield dispositions of soybean in Cd polluted soil, significant impact on vegetative development was noteworthy. Compared to yield of control plants, cadmium pollution imposed a 26.1% reduction in per plant yield in TGm-1, compared 1.71% in TGm-3. Generally, addition of nitrogenous fertilizer further suppressed crop yield by as much as 80% in plants sown in cadmium-polluted soil. However, application of ammonia fertilizer to TGm-2 improved its yield performances in the cadmium-polluted soil.

scholarly journals Biomass Accumulation and Industrial Yield of Irrigated Sugarcane Submitted to Sources and Doses of Nitrogen Grown in Cerrado Oxisol

2019 ◽  
Vol 11 (9) ◽  
pp. 167 ◽  
Author(s):  
N. F. da Silva ◽  
F. N. Cunha ◽  
M. B. Teixeira ◽  
F. A. L. Soares ◽  
E. C. da Silva ◽  
...  
Keyword(s):  
Experimental Design ◽  
Nitrogen Fertilization ◽  
Biomass Accumulation ◽  
Average Increase ◽  
N Application ◽  
Split Plot ◽  
Gross Income ◽  
Growth Development ◽  
Red Latosol ◽  
Industrial Yield

The sugar and alcohol sector have invested heavily in technologies to increase the productivity of sugarcane and consequently the gross income of sugar and alcohol; among these practices irrigation and fertilization stands out. Based on the hypothesis that the source and the availability of nitrogen influence the growth, development and yield of irrigated sugarcane in the cerrado region, this study aimed to evaluate the accumulation of biomass and yield to define the best source and dose of nitrogen fertilization in irrigated sugarcane, in the cane-plant cycle, in a very clayey dystrophic Red Latosol, cerrado phase. The experiment was carried out at the Raízen Plant, located in the municipality of Jataí-GO. Brazil. The variety IACSP95-5000 was used in a randomized block experimental design, analyzed in a split-split-plot scheme, with four replicates. The factors evaluated were in the plots of four N rate (0, 60, 120 and 180 kg ha-1); In the split-plot two N sources (urea and ammonium nitrate) and as split-split-plot were represented by four evaluation periods (210, 250, 290 and 330 days after the planting-DAP). The irrigation was by sprinkling, performed by a central pivot. The highest gross sugar yield and gross alcohol yield in the average source of 131.72 kg N ha-1 had an average increase of 32.19%, compared to without N application 0 kg N ha-1.

A meta-analysis of elevated [CO2 ] effects on soybean (Glycine max ) physiology, growth and yield

2002 ◽  
Vol 8 (8) ◽  
pp. 695-709 ◽  
Author(s):  
Elizabeth A. Ainsworth ◽  
Phillip A. Davey ◽  
Carl J. Bernacchi ◽  
Orla C. Dermody ◽  
Emily A. Heaton ◽  
...  
Keyword(s):  
Glycine Max ◽  
Elevated Co2 ◽  
Meta Analysis ◽  
Growth And Yield ◽  
Co2 Effects

scholarly journals Effects of Biofertilizer Produced from Bradyrhizobium and Streptomyces griseoflavus on Plant Growth, Nodulation, Nitrogen Fixation, Nutrient Uptake, and Seed Yield of Mung Bean, Cowpea, and Soybean

Agronomy ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 77 ◽  
Author(s):  
Aung Zaw Htwe ◽  
Seinn Moh Moh ◽  
Khin Myat Soe ◽  
Kyi Moe ◽  
Takeo Yamakawa
Keyword(s):  
Nitrogen Fixation ◽  
Plant Growth ◽  
Seed Yield ◽  
Mung Bean ◽  
Growth And Yield ◽  
Vegetable Crops ◽  
N Application ◽  
Npk Uptake ◽  
Phosphorus And Potassium ◽  
Leguminous Crops

The use of biofertilizers is important for sustainable agriculture, and the use of nodule bacteria and endophytic actinomycetes is an attractive way to enhance plant growth and yield. This study tested the effects of a biofertilizer produced from Bradyrhizobium strains and Streptomyces griseoflavus on leguminous, cereal, and vegetable crops. Nitrogen fixation was measured using the acetylene reduction assay. Under N-limited or N-supplemented conditions, the biofertilizer significantly promoted the shoot and root growth of mung bean, cowpea, and soybean compared with the control. Therefore, the biofertilizer used in this study was effective in mung bean, cowpea, and soybean regardless of N application. In this study, significant increments in plant growth, nodulation, nitrogen fixation, nitrogen, phosphorus, and potassium (NPK) uptake, and seed yield were found in mung beans and soybeans. Therefore, Bradyrhizobium japonicum SAY3-7 plus Bradyrhizobium elkanii BLY3-8 and Streptomyces griseoflavus are effective bacteria that can be used together as biofertilizer for the production of economically important leguminous crops, especially soybean and mung bean. The biofertilizer produced from Bradyrhizobium and S. griseoflavus P4 will be useful for both soybean and mung bean production.

scholarly journals Nitrogen Fertilization Effects on Physiology of the Cotton Boll–Leaf System

Agronomy ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 271
Author(s):  
Jing Chen ◽  
Liantao Liu ◽  
Zhanbiao Wang ◽  
Hongchun Sun ◽  
Yongjiang Zhang ◽  
...  
Keyword(s):  
River Basin ◽  
Nitrogen Fertilization ◽  
Yellow River ◽  
Yellow River Basin ◽  
Growth And Yield ◽  
The Yellow River ◽  
Nitrogen Rate ◽  
The Yellow River Basin ◽  
Source Sink ◽  
Subtending Leaves

The objective of this study was to assess the impacts of nitrogen on the physiological characteristics of the source–sink system of upper fruiting branches under various amounts of nitrogen fertilization. A two-year field experiment was conducted with a Bt cotton cultivar in the Yellow River Basin of China. The growth and yield of cotton of the upper fruiting branches were compared under four nitrogen levels: Control (N0, 0 kg ha−1), low nitrogen (N1, 120 kg ha−1), moderate nitrogen (N2, 240 kg ha−1), and high nitrogen (N3, 480 kg ha−1). The results indicated that in the subtending leaves in upper fruiting branches, chlorophyll content, protein content, and peroxidase (POD) activity dramatically increased with nitrogen application, reaching the highest under the moderate nitrogen treatment. The physiological characters in the seeds had the same trends as in the subtending leaves. Furthermore, the moderate nitrogen rate (240 kg ha−1) had a favorable yield and quality. Our results supported that a moderate nitrogen rate (240 kg ha−1) could coordinate the source–sink growth of cotton in the late stage, enhance the yield and fiber quality, and decrease the cost of fertilizer in the Yellow River Basin of China and other similar ecological areas.

Effect of nitrogen fertilization on yield, storage losses and chemical composition of winter cabbage

1991 ◽  
Vol 71 (3) ◽  
pp. 943-946 ◽  
Author(s):  
S. Freyman ◽  
P. M. Toivonen ◽  
W. C. Lin ◽  
P. W. Perrin ◽  
J. W. Hall
Keyword(s):  
Ascorbic Acid ◽  
Chemical Composition ◽  
Key Words ◽  
Nitrogen Fertilization ◽  
N Fertilization ◽  
Nitrogen Rate ◽  
N Application ◽  
Storage Losses ◽  
White Cabbage ◽  
Brassica Oleracea L

Increasing rates of field nitrogen (N) application (0, 100, 200, 300, 400 and 500 kg N ha−1) resulted in markedly higher yields of winter white cabbage (Brassica oleracea L. var. capitata 'Bartolo') due to larger head size. Glucose and fructose contents increased with increased nitrogen. In contrast, ascorbic acid and sucrose contents declined slightly with increased nitrogen. Nitrogen rate had little effect on storage losses. The results indicated that increased N fertilization provided overall benefit to cabbage production. Key words: Cabbage, nitrogen fertilization, storage losses, yield

scholarly journals Nitrogen fertilization of vegetables cultivated under no-tillage after cover crops

2017 ◽  
Vol 35 (1) ◽  
pp. 103-110 ◽  
Author(s):  
Roberto BF Branco ◽  
Sally F Blat ◽  
Tais GS Gimenes ◽  
Rodrigo HD Nowaki ◽  
Humberto S Araújo ◽  
...  
Keyword(s):  
Plant Growth ◽  
Cover Crops ◽  
Nitrogen Fertilization ◽  
Nitrate Concentration ◽  
Dry Mass ◽  
Growth And Yield ◽  
No Tillage ◽  
Biological Fixation ◽  
Sunn Hemp ◽  
Nitrogen Rates

ABSTRACT The production of horticultural crops in no-tillage and in rotation with cover crops reduces the dependency in nitrogen fertilizer, due to increased soil organic matter and by biological fixation performed by legumes. Thus, the aim of this work was to study rates of nitrogen fertilization and cover crops in the agronomic performance of tomato and broccoli grown under no-tillage. The experiment was conducted in a split plot design with four replications. Treatments consisted of cover crops, sunn hemp and millet, and four rates of nitrogen fertilization (0, 50, 100 and 200 kg/ha of nitrogen), for both the tomato and broccoli crops. All soil management was performed in no-tillage. For tomato crops we evaluated the plant growth, the nitrate concentration of sprouts and fruits and yield of commercial and non commercial fruits. For broccoli we evaluated plant growth and yield. There was an interaction effect between cover crop and nitrogen rates to tomato growth measured at 100 days after transplanting, for plant height, number of fruit bunches, dry mass of leaves and diameter of the stalk. The tomato commercial fruit number and yield showed maximum values with 137 and 134 kg/ha of N respectively, on the sunn hemp straw. The nitrate concentration of the tomato sprouts was linearly increasing with the increase of nitrogen rates, when grown on the millet straw. For broccoli production, the maximum fresh mass of commercial inflorescence was with 96 kg/ha of N, when grown on the millet straw.

Nitrogen fertiliser alleviates the disorder straighthead in Australian rice

2006 ◽  
Vol 46 (8) ◽  
pp. 1077 ◽  
Author(s):  
B. W. Dunn ◽  
G. D. Batten ◽  
T. S. Dunn ◽  
R. Subasinghe ◽  
R. L. Williams
Keyword(s):  
Plant Growth ◽  
Growth And Yield ◽  
High Nitrogen ◽  
Physiological Disorder ◽  
N Application ◽  
Nitrogen Fertiliser ◽  
Eastern Australia ◽  
Growing Environment ◽  
Nitrogen Rates ◽  
N Status

Straighthead is a ‘physiological’ disorder of rice, the symptoms being floret sterility, deformed florets and panicles and reduced grain yield. Straighthead in rice is difficult to investigate because of its unpredictable occurrence under field conditions. An experiment was conducted in south-eastern Australia in 1996 to investigate the effect of rate and timing of N fertilisation on growth and yield of rice. The presence of straighthead at this location gave a unique opportunity to study the influence of crop N status. This paper reports the influence of N application on straighthead symptoms during this experiment. A significant reduction of straighthead occurred with higher rates of N application. Application of 250 kg N/ha pre-flood, improved plant growth and vigour with subsequent increased uptake and accumulation of S, P, K, Mg, Cu, Mn and Zn in the plant at panicle initiation. The reduction of straighthead at high nitrogen rates may be due to improved uptake of several essential nutrients, and Cu may be a critical nutrient. This study and earlier observations have shown the application of optimal levels of pre-flood nitrogen to achieve grain yields greater than 10 t/ha may reduce straighthead severity in the Australian rice-growing environment. The results in this paper are not presented as recommendations to growers but a contribution to the currently limited literature on straighthead in Australia.

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