scholarly journals Effects of Irrigation and Nitrogen Fertilizer Input Levels on SoilNO3--N Content and Vertical Distribution in Greenhouse Tomato (Lycopersicum esculentumMill.)

Scientifica ◽  
2016 ◽  
Vol 2016 ◽  
pp. 1-13 ◽  
Author(s):  
Xiukang Wang ◽  
Yingying Xing
Keyword(s):  
Vertical Distribution ◽  
Block Design ◽  
Fertilizer Application ◽  
N Fertilizer ◽  
N Use Efficiency ◽  
N Recovery ◽  
N Content ◽  
Use Efficiency ◽  
N Use ◽  
Drip Fertigation

The purpose of this study is to investigate the interactions between irrigation and fertilizer treatments on soilNO3--N content and vertical distribution under drip fertigation in greenhouse tomatoes. Randomized block design with three replications and the treatments consisting of three levels of irrigation and three levels of N fertilizer were used. Three irrigation levels were W1 (100%  ET0), W2 (75%  ET0), and W3 (50%  ET0) and fertilizer levels were F1 (N240–P2O5120–K2O150 kg hm−2), F2 (N180–P2O590–K2O112.5 kg hm−2), and F3 (N120–P2O560–K2O75 kg hm−2). The result demonstrates that dynamics of soilNO3--N and its response to drip fertigation and levels of N moved toward the fore soil moist, and the average soilNO3--N content with W3 treatment was 1.23 times higher than that of the W1 treatment in 0–60 cm at 43 days after transplanting. The negative correlation between N use efficiency and levels of fertilizer N and the N recovery efficiency was increased with increases of N fertilizer application. The fertilizer nitrogen rate greatly significantly influenced soilNO3--N content. Avoiding N leaching through controlled matching N fertilizer application and controlled irrigation to tomato N demand is the key to maintain crop yield and improve N use efficiency.

Effects of nitrogen fertilizer application on seed yield, N uptake, N use efficiency, and seed quality of Brassica carinata

2013 ◽  
Vol 93 (6) ◽  
pp. 1073-1081 ◽  
Author(s):  
E. N. Johnson ◽  
S. S. Malhi ◽  
L. M. Hall ◽  
S. Phelps
Keyword(s):  
Seed Yield ◽  
Seed Quality ◽  
N Uptake ◽  
Fertilizer Application ◽  
Brassica Carinata ◽  
N Fertilizer ◽  
N Use Efficiency ◽  
Use Efficiency ◽  
N Rates ◽  
N Use

Johnson, E. N., Malhi, S. S., Hall, L. M. and Phelps, S. 2013. Effects of nitrogen fertilizer application on seed yield, N uptake, N use efficiency, and seed quality of Brassica carinata . Can. J. Plant Sci. 93: 1073–1081. Ethiopian mustard (Brassica carinata A. Braun) is a relatively new crop in western Canada and research information on its response to N fertilizer is lacking. Two field experiments (exp. 1 at 3 site-years and exp. 2 at 4 site-years) were conducted from 2008 to 2010 in Saskatchewan and Alberta, Canada, to determine effect of N fertilizer application on Brassica carinata plant density, seed and straw yield, N uptake in seed and straw, N use efficiency (NUE), N fertilizer use efficiency (NFUE) and seed quality. N rates applied were 0 to 160 kg N ha−1 and 0 to 200 kg N ha−1 in exps. 1 and 2, respectively. Plant density was not affected by increasing N rate at 5 site-years but declined with high rates of N application at 2 site-years. Seed yield responded to applied N in 6 of 7 site-years, with the non-responsive site having a high total N uptake at the 0 kg N ha−1 rate (high Nt value). There were no sites where seed yields were maximized with the N rates applied. Response trends of straw yield and N uptake were similar to that of seed yield at the corresponding site-years. NUE and NFUE generally declined as N rate increased. Protein concentration in seed generally increased and oil concentration in seed decreased with increasing N rates. In conclusion, the responses of seed yield, total N uptake, NUE, and NFUE to applied N was similar to those reported in other Brassica species with the exception that a rate was not identified in which Brassica carinata yields were maximized.

scholarly journals Effects of PU, USG and NPK briquette on nitrogen use efficiency and yield of BR22 rice under reduced water condition

2014 ◽  
Vol 11 (2) ◽  
pp. 215-220
Author(s):  
A Naznin ◽  
H Afroz ◽  
TS Hoque ◽  
MH Mian
Keyword(s):  
Block Design ◽  
N Fertilizer ◽  
N Use Efficiency ◽  
Water Yield ◽  
Deep Placement ◽  
Science Field ◽  
Randomized Complete Block Design ◽  
Use Efficiency ◽  
Reduced Water ◽  
N Use

An experiment was conducted at the Soil Science Field Laboratory of Bangladesh Agricultural University, Mymensingh during the aman season of 2012 to investigate the effects of prilled urea (PU), urea super granule (USG) and NPK briquette on NH4- N concentration in field water, yield and nitrogen (N) use efficiency (NUE) of BR22 rice under reduced water conditions. The experiment was laid out in a randomized complete block design with three replications. There were altogether eight treatment combinations viz. T1: Control (No N fertilizer), T2: 52 kg N ha-1 from USG, T3: 104 kg N ha-1 from USG, T4: 78 kg N ha-1 from PU, T5: 120 kg N ha-1 from PU, T6: 51 kg N ha-1 from NPK briquette, T7: 78 kg N ha-1 from USG and T8: 78 kg N ha-1 from NPK briquette. Water samples were collected from rice field for seven consecutive days after deep placement of USG and the first split application of PU and the samples were analyzed for NH4-N. The Highest concentration of NH4-N in water was observed at the second day of PU application followed by gradual decrease with time. The yield contributing characters like plant height, panicle length, number of effective tillers hill-1 and grains panicle-1 were significantly influenced by different treatments. The highest grain yield of 3.93 t ha-1 was recorded from 104 kg N ha-1 as USG (T3) and the lowest value of 2.12 t ha-1 was obtained from control. The N use efficiency was increased when the N was applied as USG. The overall results revealed that application of USG and NPK briquette may be practised for obtaining better yields in addition to increasing the efficiency of N fertilizer. DOI: http://dx.doi.org/10.3329/jbau.v11i2.19897 J. Bangladesh Agril. Univ. 11(2): 215-220, 2013

scholarly journals Integrated use of farm manure and synthetic nitrogen fertilizer improves nitrogen use efficiency, yield and grain quality in wheat

2020 ◽  
Vol 15 (1) ◽  
pp. 29-34 ◽  
Author(s):  
Abdur Rehim ◽  
Maryam Khan ◽  
Muhammad Imran ◽  
Muhammad Amjad Bashir ◽  
Sami Ul-Allah ◽  
...  
Keyword(s):  
Nitrogen Use Efficiency ◽  
Block Design ◽  
N Uptake ◽  
N Fertilizer ◽  
N Use Efficiency ◽  
Growth And Yield ◽  
Limiting Factor ◽  
Nitrogen Use ◽  
Use Efficiency ◽  
N Use

Lower nitrogen use efficiency (NUE) is a major yield limiting factor in semi-arid regions due to poor organic contents of the soils. There is a close relationship between soil organic matter and NUE of fertilizers. Therefore, this study was conducted to assess the effect of sole N fertilizer and its combinations with organic amendments (farm manure combinations) on N use efficiency and crop productivity. For this purpose, a two-year field study was conducted to access the influence of integrated use of synthetic N fertilizer (urea) and farm manure on N use efficiency and wheat productivity. Treatments include i.e. Control, 100% N by Urea + 0%N by farm manure (FM), 75% N by Urea + 25 % N by FM, 50% N by Urea + 50% N by FM, 25% N by Urea + 75% N by FM, 0% N by Urea + 100% N by FM arranged in a triplicate randomized complete block design having recommended N rate of 150 kg ha–1. The results revealed that the treatment having 75% Urea and 25% FM followed by 50% Urea and 50% FM showed better results in term of wheat growth and yield. There was 98% increase in N uptake of wheat grains and 200% increase in NUE by the application of 75% urea+25% FM relative to sole application of urea. This study suggests use of 3:1 ratio of urea and FM for maximum NUE and sustainable wheat production.

scholarly journals Single and split nitrogen dose in wheat yield indicators

2018 ◽  
Vol 22 (1) ◽  
pp. 16-21 ◽  
Author(s):  
Juliane S. P. Costa ◽  
Rubia D. Mantai ◽  
José A. G. da Silva ◽  
Osmar B. Scremin ◽  
Emilio G. Arenhardt ◽  
...  
Keyword(s):  
Block Design ◽  
Wheat Yield ◽  
N Use Efficiency ◽  
Phenological Stages ◽  
Split Dose ◽  
N Supply ◽  
N Release ◽  
Residual N ◽  
Use Efficiency ◽  
N Use

ABSTRACT Single or split nitrogen (N) supply can maximize the expression of wheat yield indicators. The objective of the study was to evaluate the greater N use efficiency on wheat yield indicators by the single and split N supply under favorable and unfavorable year conditions to the crop in succession system of high and reduced residual N release. The study was conducted in 2014 and 2015, in a randomized complete block design with four replicates in a 4 x 3 factorial, for N-fertilizer doses (0, 30, 60, 120 kg ha-1) and supply forms [full dose (100%) in the phenological stage V3 (third expanded leaf); split dose (70 and 30%) in the phenological stages V3/V6 (third and sixth expanded leaves, respectively) and; split dose (70 and 30%) in the phenological stages V3/R1 (third expanded leaf and early grain filling)], respectively, in soybean/wheat and maize/wheat cultivation systems. The highest N use efficiency for wheat yield was obtained with the single dose supply in favorable year of temperature and rainfall and with the split dose in the V3/V6 stages in unfavorable year, regardless of the succession system of high and reduced residual N release.

scholarly journals Pengaruh pemupukan N terhadap serapan dan efisiensi penggunaan N, serta hasil padi hibrida

Jurnal Agro ◽  
2022 ◽  
Vol 8 (2) ◽  
pp. 262-273
Author(s):  
Risqa Naila Khusna Syarifah ◽  
Zulfa Ulinuha ◽  
Purwanto Purwanto
Keyword(s):  
Hybrid Rice ◽  
Block Design ◽  
N Uptake ◽  
N Use Efficiency ◽  
Optimum Dose ◽  
Rice Varieties ◽  
Randomized Block Design ◽  
Use Efficiency ◽  
N Use

Pemupukan N pada padi hibrida menjadi krusial mengingat varietas padi hibrida sangat responsif, sehingga harus diketahui dosis yang tepat untuk menghasilkan produksi yang tinggi. Penelitian ini bertujuan untuk mengkaji pengaruh dosis N terhadap serapan N, efisiensi penggunaan N, dan hasil padi hibrida. Penelitian menggunakan Rancangan Acak Kelompok yang diulang tiga kali. Faktor pertama adalah varietas padi hibrida yang terdiri dari Varietas Mapan P05, Varietas SL-8 SHS Sterling, dan Varietas Intani 602. Faktor kedua adalah dosis pemupukan N yang terdiri dari kontrol tanpa pemupukan N, dosis N 100 kg ha-1, dan dosis N 200 kg ha-1. Terdapat respon yang beragam antar varietas padi hibrida terhadap taraf pemupukan N, Serapan N, efisiensi penggunaan N tertinggi yang dihasilkan oleh varietas Intani 602 masing-masing sebesar 138,57 %, dan 36,13%. Serapan N tanaman padi tertinggi dicapai pada dosis N 100 kg ha-1, dan efisiensi penggunaan N tertinggi pada dosis N 200 kg ha-1. Hasil gabah tertinggi dicapai pada varietas Mapan P05 sebesar 7,42 t ha-1, dan dosis pemupukan N 100 kg ha-1 memberikan hasil tertinggi sebesar 7,47 t ha-1. Implikasi dari penelitian ini bahwa dosis nitrogen 100 kg ha-1 dapat menjadi acuan sebagai dosis pemupukan N varietas padi hibrida di Indonesia. Hybrid rice is responsive to nitrogen, so it’s necessary to find the optimum dose to optimize the production. The  aim of this research was to examine the effect of nitrogen on N uptake, N use efficiency, and yield of hybrid rice. This study used a randomized block design with three replications. The first factor consisted of the  Mapan P05 variety, the SL-8 SHS Sterling variety, and Intani 602 variety. The second factor was Nitrogen dosage consisted of control, 100 kg ha-1, and 200 kg ha-1. There were various responses among hybrid rice varieties to the level of fertilization. The highest N uptake and N use efficiency was achieved in the Intani 602 variety at 138.57% and 36.13%, respectively. The highest N uptake was achieved at 100 kg ha-1 of N, and the highest N use efficiency was at 200 kg ha-1. The highest yield was achieved in the Mapan P05 variety (7.42 t ha-1), and the dose of N at 100 kg ha-1 gave the highest yield (7.47 t ha-1). The implication of this research is that the nitrogen dose of 100 kg ha-1 can be used as a reference for hybrid rice varieties fertilizer in Indonesia.

Cultivar and N Fertilizer Rate Affect Yield and N use Efficiency in Irrigated Durum Wheat

Crop Science ◽  
2014 ◽  
Vol 54 (3) ◽  
pp. 1175-1183 ◽  
Author(s):  
Zhejun Liang ◽  
Kevin F. Bronson ◽  
Kelly R. Thorp ◽  
Jarai Mon ◽  
Mohammad Badaruddin ◽  
...  
Keyword(s):  
Durum Wheat ◽  
N Fertilizer ◽  
N Use Efficiency ◽  
Fertilizer Rate ◽  
Use Efficiency ◽  
N Use ◽  
N Fertilizer Rate

scholarly journals Manure application increased crop yields by promoting nitrogen use efficiency in the soils of 40-year soybean-maize rotation

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Wei Hua ◽  
Peiyu Luo ◽  
Ning An ◽  
Fangfang Cai ◽  
Shiyu Zhang ◽  
...  
Keyword(s):  
Soil Properties ◽  
Nitrogen Use Efficiency ◽  
Crop Yields ◽  
N Use Efficiency ◽  
Organic Fertilizers ◽  
N Recovery ◽  
Nitrogen Use ◽  
Use Efficiency ◽  
N Use

Abstract It is great of importance to better understand the effects of the long-term fertilization on crop yields, soil properties and nitrogen (N) use efficiency in a rotation cropping cultivation system under the conditions of frequent soil disturbance. Therefore, a long-term field experiment of 40 years under soybean-maize rotation was performed in a brown soil to investigate the effects of inorganic and organic fertilizers on crop yields, soil properties and nitrogen use efficiency. Equal amounts of 15N-labelled urea with 20.8% of atom were used and uniformly applied into the micro-plots of the treatments with N, NPK, M1NPK, M2NPK before soybean sowing, respectively. Analyses showed that a total of 18.3–32.5% of applied N fertilizer was taken up by crops in the first soybean growing season, and that the application of manure combining with chemical fertilizer M2NPK demonstrated the highest rate of 15N recovery and increased soil organic matter (SOM) and Olsen phosphorus (Olsen P), thereby sustaining a higher crop yield and alleviating soil acidification. Data also showed that no significant difference was observed in the 15N recovery from residue N in the second maize season plant despite of showing a lower 15N recovery compared with the first soybean season. The recovery rates of 15N in soils were ranged from 38.2 to 49.7% by the end of the second cropping season, and the residuals of 15N distribution in soil layers revealed significant differences. The M2NPK treatment demonstrated the highest residual amounts of 15N, and a total of 50% residual 15N were distributed in a soil layer of 0–20 cm. Our results showed that long-term application of organic fertilizers could effectively promote N use efficiency by increasing SOM and improving soil fertility, and thus leading to an increase in crop yields. This study will provide a scientific reference and guidance for improving soil sustainable productivity by manure application.

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