scholarly journals Effects of Different Fertilization Measures on Corn Yield and Soil Nitrogen Level in Hollow Village On the Loess Plateau

2021 ◽  
pp. 729-736
Author(s):  
Lei Shi ◽  
Zhong Zheng Liu ◽  
Liangyan Yang ◽  
Wangtao Fan
Keyword(s):  
Nitrogen Content ◽  
Loess Plateau ◽  
Total Nitrogen ◽  
Soil Nitrogen ◽  
Organic Fertilizer ◽  
Maize Yield ◽  
Corn Yield ◽  
Curing Agent ◽  
N Content ◽  
Total N

Problems of poor soil structure and nutrient deficiency in the reclamation of abandoned homesteads, and improvement of the soil condition after land reclamation to arable land and rapidly resume agricultural production were investigated. Organic fertilizers, curing agent and fly ash as amendment materials were selected. A plot test with seven different return materials in order to obtain the effects of different amendment materials on nutrient improvement in the reclamation of abandoned homestead soils in loess areas was conducted. After 3 years of maize crop cultivation, soil samples were collected and analyzed for total soil nitrogen content under different treatments. The results showed that the maize yield in each plot showed different additives contributed to the increase in maize yield to different degrees, while the addition of organic fertilizer had a more significant effect on the increase in yield. In the treatment of the experimental plots with the addition of curing agent + organic fertilizer, there was a significant effect on the enhancement of the content of total nitrogen in the soil tillage layer after three years of maize cultivation. The total N content of the surface soil (0~15 cm) increased from 0.32 to 0.64 g/kg, and that of the soil from 15~30 cm increased from 0.31 to 0.66 g/kg. The total N content of the soil from 0~60cm showed an increasing trend year by year, but the increase was gradually reduced. The total nitrogen content of soil in the depth of 60~105 cm showed a decreasing trend year by year. In the remediation of hollow villages in loess plateau, the compound application of organic fertilizer and ripening agent can significantly improve the soil nutrient content, condition of farmland and increase in maize yield, which is the most suitable material for field return in the remediation of hollow villages in loess plateau, and is of great significance to improve the quality of field return in the remediation of hollow villages. Bangladesh J. Bot. 50(3): 729-736, 2021 (September) Special

Influence of growing various crops in five different fixed rotations on the changes in nitrate and total nitrogen content of soils

1985 ◽  
Vol 104 (3) ◽  
pp. 609-613 ◽  
Author(s):  
K. N. Sharma ◽  
A. L. Bhandari ◽  
M. L. Kapur ◽  
D. S. Rana
Keyword(s):  
Nitrogen Content ◽  
Total Nitrogen ◽  
Soil Nitrogen ◽  
Nitrate Nitrogen ◽  
Balance Sheet ◽  
Total Nitrogen Content ◽  
Soil N ◽  
Total N ◽  
Soil Layers ◽  
Total Soil N

SummaryThe results on the influence of various crops in five different fixed rotations on the ohanges in nitrate and total N content of soils are reported. Groundnut contributed largely to the accumulation of nitrate nitrogen in the soil profile (to a depth of 120 cm). Bajra fodder exhausted the soil nitrogen reserve to a great extent. Wheat and maize, in a rotation, reduced nitrate leaching to deeper soil layers. Summer moong also left a large amount of unabsorbed nitrate in the profile. Total nitrogen content of the soil decreased after the harvest of cereals. Maximum depletion occurred after the harvest of bajra crop. Potato (a crop which received a heavy dressing of N fertilizer) and legumes contributed to the soil N reserve. A balance sheet of N indicated net gains of total soil N in four of the five cropping sequences. A net loss of 75 kg N/ha was observed in bajra fodder-potato-wheat rotation.

scholarly journals The effect of sub-irrigation with untreated and treated municipal wastewater on organic matter and Nitrogen content on two soil types

2019 ◽  
Keyword(s):  
Organic Matter ◽  
Nitrogen Content ◽  
Total Nitrogen ◽  
Municipal Wastewater ◽  
Tap Water ◽  
Soil Mass ◽  
Treated Wastewater ◽  
Total N ◽  
Untreated Wastewater ◽  
Zone Ii

<p>In order to study the chemical parameters of the soil after sub-irrigation with wastewater, a system was installed in one of the greenhouses of the Agricultural University of Athens. Wastewater was applied subsurface into the soil mass of the pots were used. Three treatments were used: Untreated wastewater (U), Treated wastewater (T) and tap water (W) as control. Two different types were used: Soil (a) characterized as Sandy loam and soil (b) characterized as Loamy sand. Moreover, in order to investigate the change of total Nitrogen and organic matter concentrations at the point where the emitter was placed, the soil mass was divided into two zones. The upper (zone I) and the lower one (zone II). The total nitrogen content, ammonia nitrogen (NH4-N), nitrogen nitrate (NO3-N) and the percentage of organic matter, were determined in the soil samples. Statistically significant differences (p &lt;0, 05) were observed in the organic matter and the total N%, only for soil (b). For soil (a), organic matter percentage was increased in zone (I) (irrigation with treated wastewater at 20 cm depth). For soil (b), total N% was increased in zone (I), while nitrate and ammonium were increased in zone (II) (irrigation with untreated wastewater at 20 cm depth).</p>

scholarly journals Isotopic of nitrogen and chemical analysis of deferred grazing marandu palisadegrass fertilized with urea and poultry litter

2016 ◽  
Vol 37 (4Supl1) ◽  
pp. 2609 ◽  
Author(s):  
Vania Luzia Fournou de Lima ◽  
Carlos Ducatti ◽  
Paulo Roberto de Lima Meirelles ◽  
Luciane Do Carmo Seraphim ◽  
Marco Aurélio Factori ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Total Nitrogen ◽  
Crude Protein ◽  
Organic Fertilizer ◽  
Poultry Litter ◽  
Neutral Detergent Fiber ◽  
Chicken Manure ◽  
Control Treatment ◽  
Total N ◽  
Urochloa Brizantha

This study aimed to evaluate and quantify the methodology of stable isotopes, 15N values for the organic fertilizer (chicken manure) and inorganic (urea). In addition to evaluating the incorporation rate, chemical half-life and analysis thereof, for possible traceability through the pasture fertilized with different sources of N. The technique of employment with use of tracer stable isotope 15N possible to estimate the changes in the N soil, even in the face of the various changes that take place concurrently. The methodology determines the path of both N isotopes (15N and 14N), providing information about the system and estimating N transformation rates The experimental work was conducted at the Faculty of Veterinary Medicine and Animal Science, UNESP Botucatu. An area of 576m2 was used for the parcels, which were divided between the 3 treatments with 4 repetitions each: T1 - control treatment without fertilization; T2 - fertilization with urea and T3 - organic fertilizer with poultry litter. The grass was cut every 15 days, three months after fertilization, for a total of four periods of grazing exclusion. Experimental samples were analyzed for the isotopic nitrogen and crude protein, neutral detergent fiber, acid detergent fiber, cellulose, hemicellulose and lignin composition. Degradation of poultry litter, the sand bag method was analyzed by linear regression. (delta-N-15) forage, fodder percentage of nitrogen, percentage of total nitrogen sheet, (delta-N-15) on the sheet, and (delta-N-15) at the helm were different between treatments. To this end collection, difference was observed for% Total Nitrogen, % Total N in sheet, % Total N in the trunk and% Total N at the helm. The crude protein analysis revealed significant differences between treatments, while the crude protein and lignin differ according to time after fertilization. The technique of N stable isotope effectively distinguish the composition of organic and inorganic fertilizers in deferred grazing pastures of Urochloa brizantha cv. Marandu. Forage quality was not influenced by the source of N.

Variations and Typical Impact Factors of Soil Nitrogen Content during the Vegetation Succession in Limestone Mountains

2013 ◽  
Vol 664 ◽  
pp. 142-145
Author(s):  
Shan Shan Zhang ◽  
Li Yuan Yang ◽  
Hui Wang ◽  
Qing Lin Chen ◽  
Qian Li
Keyword(s):  
Organic Carbon ◽  
Nitrogen Content ◽  
Total Nitrogen ◽  
Soil Nitrogen ◽  
Mineral Soil ◽  
Impact Factors ◽  
Organic Carbon Content ◽  
Soil Mineral Nitrogen ◽  
Platycladus Orientalis ◽  
Positive Correlations

In order to explore the variations and impact factors of soil nitrogen contents, 0-20 cm mineral soil under herb, shrub, Platycladus orientalis plantation of limestone mountains after restoration for 5 years and 10 years were collected and examined in Jinan, Shandong province. The results showed that there was different soil mineral nitrogen content under different vegetation during the natural succession and artificial restoration succession. Shrub community (14.35 mg/Kg) > herb community (12.73 mg/Kg); Platycladus orientalis plantation restored for 10 years (27.82 mg/Kg) > Platycladus orientalis plantation restored for 5 years (20.76 mg/Kg). NO3--N has highly significant positive correlations with soil organic carbon and total nitrogen content (r = 0.626, 0.564, p 4+-N has not significantly correlated with total nitrogen and organic carbon content (r = 0.218, 0.155). However, it has highly significant positive correlation with the NO3--N (r = 0.531, p 3--N and NH4+-N have highly significant negative correlations with soil pH (r = -0.657, -0.605, p < 0.01), respectively. But the correlation with the soil moisture was not significant (r = -0.181, 0.114). The research provided base information for the evaluation of restoration effects and restoration practice on the limestone mountains.

scholarly journals Spatial variability of total soil nitrogen and sulphur content at two conventionally managed fields

2008 ◽  
Vol 54 (No. 10) ◽  
pp. 413-419 ◽  
Author(s):  
V. Vaněk ◽  
J. Balík ◽  
J. Šilha ◽  
J. Černý
Keyword(s):  
Spatial Variability ◽  
Crop Yield ◽  
Soil Nitrogen ◽  
Coefficient Of Variation ◽  
Sulphur Content ◽  
N Content ◽  
Total N ◽  
Total Soil ◽  
Positive Correlations ◽  
Total Soil Nitrogen

Spatial variability of total soil nitrogen and sulphur content has been observed in two plots (I – 54 ha and II – 32 ha). Soil samples were taken from the topsoil in a regular grid, which was localised by GPS (individual sampling points were 80 m apart); subsequently total soil N and S contents were analysed. The average N content in plot I was 0.16%; in plot II it was 0.12%. The content of S in plots I and II was 0.09% and 0.08%, respectively. Spatial variability of total N differed in separate parts of the plots. A higher variability was recorded in plot I, where the coefficient of variation (<I>CV</I>) was 15.7%, whereas in plot II it was only 11.1%. However, sulphur showed only little variability, and thus its coefficient of variation was low (2.5 a 2.3% in plots I and II, respectively). A positive and mostly conclusive relationship has been observed between the N content of soil and the crop yield. This effect was more significant in plot II. The S content in soil showed no correlation with yield. Furthermore, positive correlations were observed between field altitude, soil moisture and crop yield in both plots.

scholarly journals The Impact of Fertilizer Amendments on Soil Autotrophic Bacteria and Carbon Emissions in Maize Field on the Semiarid Loess Plateau

2021 ◽  
Vol 12 ◽  
Author(s):  
Jinbin Wang ◽  
Junhong Xie ◽  
Lingling Li ◽  
Zhuzhu Luo ◽  
Renzhi Zhang ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Loess Plateau ◽  
Structural Equation ◽  
Organic Fertilizer ◽  
Maize Yield ◽  
Crop Productivity ◽  
Chemical Fertilizer ◽  
Equation Modeling ◽  
Autotrophic Bacteria ◽  
The Impact

Soil autotrophic bacteria play a crucial role in regulating CO2 fixation and crop productivity. However, the information is limited to how fertilization amendments alter soil autotrophic bacterial community, crop yield, and carbon emission efficiency (CEE). Here, we estimated the impact of the structure and co-occurrence network of soil autotrophic bacterial community on maize yield and CEE. A long-term field experiment was conducted with five fertilization treatments in semiarid Loess Plateau, including no amendment (NA), chemical fertilizer (CF), chemical fertilizer plus commercial organic fertilizer (SC), commercial organic fertilizer (SM), and maize straw (MS). The results showed that fertilization amendments impacted the structure and network of soil Calvin–Benson–Bassham (CBB) (cbbL) gene-carrying bacterial community via changing soil pH and NO3–N. Compared with no amendment, the cbbL-carrying bacterial diversity was increased under the SC, SM, and MS treatments but decreased under the CF treatment. Soil autotrophic bacterial network contained distinct microbial modules that consisted of closely associated microbial species. We detected the higher abundances of soil cbbL-carrying bacterial genus Xanthobacter, Bradyrhizobium, and Nitrosospira. Structural equation modeling further suggested that the diversity, composition, and network of autotrophic bacterial community had strongly positive relationships with CEE and maize yield. Taken together, our results suggest that soil autotrophic bacterial community may drive crop productivity and CEE, and mitigate the atmospheric greenhouse effect.

scholarly journals Pemanfaatan Limbah Kulit Pisang Sebagai Pupuk Organik Cair dan Aplikasinya Terhadap Pertumbuhan Tanaman Kangkung Darat (Ipomea Reptans Poir)

2018 ◽  
Vol 6 (4) ◽  
pp. 219
Author(s):  
Ince Manis ◽  
Supriadi Supriadi ◽  
Irwan Said
Keyword(s):  
Plant Growth ◽  
Nitrogen Content ◽  
Plant Height ◽  
Total Nitrogen ◽  
Organic Liquid ◽  
Organic Fertilizer ◽  
Banana Peel ◽  
Liquid Fertilizer ◽  
Wet Weight ◽  
Number Of Leaves

Banana peel waste utilization as organic manure and its application has been made to the land kale plant growth (Ipomea reptans Poir). This paper aims to describe how to manufacture liquid organic fertilizer from the waste banana skin, determine the total nitrogen content of liquid organic fertilizer and the effect of liquid organic fertilizer waste banana skin on plant growth kale land (Ipomea reptans Poir). The method used was experimental at the stage of making a liquid organic fertilizer waste banana peel in fermentation, the determination of total nitrogen content and the application of the organic liquid fertilizer waste banana skin using a randomized block design (RBD) with 4 treatments include P0 (0 mL); P1 (20 mL); P2 (40 mL); and P3 (60 mL).The parameters measured were plant height (cm), the number of leaves (leaf) and wet weight (g). The growth data of the swamp cabbage land (Ipomea reptans poir) were analyzed by using the statistical test analysis of variance (ANOVA) then followed by Duncan test with significance level of 5%. The results showed that levels of total nitrogen of the organic liquid fertilizer waste was 0.032% and the application of the organic liquid fertilizer of banana peel waste on the growth of swamp cabbange land (Ipomea reptans poir) influence on plant height (cm) and wet weight (g) but have no effect on the number of leaves (leaf). Treatment P2 (40 mL) showed the best result for the average plant height (cm), the number of leaves (leaf) and wet weight (g) of the swamp cabbage land (Ipomea reptans poir).

scholarly journals The Feasibility of Organic Nutrient Management in Large-scale Sweet Corn Production for Processing

2012 ◽  
Vol 22 (1) ◽  
pp. 25-36 ◽  
Author(s):  
Heidi J. Johnson ◽  
Jed B. Colquhoun ◽  
Alvin J. Bussan
Keyword(s):  
Green Manure ◽  
Sweet Corn ◽  
Soil Amendments ◽  
Organic Fertilizer ◽  
Organic N ◽  
Corn Yield ◽  
Corn Production ◽  
N Content ◽  
N Management ◽  
Green Manure Crops

There is significant interest from vegetable processors, growers, and consumers in organic sweet corn (Zea mays) production. Organic nitrogen (N) management is particularly challenging in high N consuming crops such as sweet corn because of the low N content and low N to phosphorus (P) ratios of organic soil amendments. Various management programs were compared to determine the optimal combination of soil amendments and green manure crops for organic sweet corn production. Alfalfa (Medicago sativa), rye (Secale cereale), and field pea (Pisum sativum) were used as green manure crops. Composted poultry manure and a high N content organic fertilizer were used as organic amendments. Ammonium nitrate was used in a conventional management program for comparison. Treatments were designed to deliver a full rate of N (150 lb/acre), a half rate of N (75 lb/acre), and to limit the amount of P applied. Phosphorus can become a source of pollution when applied to erodible soils, particularly when soils already contain excessive P. Sweet corn yield in many of the organic programs was highly variable among years while the yield was more consistent in the conventional program. This was attributed to differences in organic N mineralization in both the green manure crops and the amendments. The most stable yield from an organic treatment, among years, was achieved using the commercially available organic N fertilizer. Commercially available amendments were costly, and although organic sweet corn received a premium price in years when organic yields were lower, profit was reduced by the high cost of N management.

Soil Nitrogen Forms and Availability in Paddy Soil under Different Fertilization Methods

2014 ◽  
Vol 1073-1076 ◽  
pp. 643-647
Author(s):  
Ji Wang ◽  
Min Jie Fu ◽  
Yun Jiang Liang ◽  
Ze Yu Guan ◽  
Jiu Dao Li
Keyword(s):  
Amino Acid ◽  
Path Analysis ◽  
Nitrogen Content ◽  
Total Nitrogen ◽  
Soil Nitrogen ◽  
Organic Nitrogen ◽  
Paddy Fields ◽  
Available Nitrogen ◽  
Amino Acid Nitrogen ◽  
Hydrolyzable Nitrogen

To reveal the characteristics of soil organic nitrogen components under different long-term fertilization methods in paddy fields, 7 typical paddy fields in the Yanbian Korean Autonomous Prefecture of Jilin Province were selected, and soil samples were collected from 0 to 10 cm and 10 to 20 cm. The samples were analyzed for available nitrogen, total nitrogen and inorganic nitrogen content and each component of organic nitrogen. The results showed that soil nitrogen decreased with increasing soil depth in the soil profile. Different fertilization methods had a significant or greater effect on the available nitrogen, total nitrogen and organic nitrogen in 0 to 10 cm soil, and it had a significant effect on the total nitrogen content in 10 to 20 cm soil. Combined applications of organic and inorganic fertilizer was beneficial for improving available soil nitrogen. Applying organic fertilizer was beneficial for the accumulation of total nitrogen and organic nitrogen. Organic nitrogen was a major part of soil nitrogen. In terms of directly affecting the path analysis, the effects of ammonia sugar nitrogen, acid-hydrolyzable unknown nitrogen and non-hydrolyzable nitrogen on available nitrogen are significant. A small negative correlation was shown between amino acid nitrogen and available nitrogen. Amino acid nitrogen indirectly affected the available nitrogen through other components. In terms of the general effect of the path analysis, the influence of non-hydrolyzable nitrogen to available nitrogen was the highest. An important factor to consider in relation to reasonable fertilization is that promoting non-hydrolyzable nitrogen and unknown acid-hydrolyzable nitrogen transformed into available nitrogen and accumulated available nitrogen.

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