scholarly journals N-(n-Butyl) Thiophosphoric Triamide (NBPT)-Coated Urea (NCU) Improved Maize Growth and Nitrogen Use Efficiency (NUE) in Highly Weathered Tropical Soil

2020 ◽  
Vol 12 (21) ◽  
pp. 8780
Author(s):  
Muhammad Muhaymin Mohd Zuki ◽  
Noraini Md. Jaafar ◽  
Siti Zaharah Sakimin ◽  
Mohd Khanif Yusop
Keyword(s):  
Nitrogen Use Efficiency ◽  
Plant Uptake ◽  
N Uptake ◽  
Growth Yield ◽  
Dry Weight ◽  
Tropical Soil ◽  
Nitrogen Use ◽  
Weight Yield ◽  
Coated Urea ◽  
Use Efficiency

Nitrogen (N) fertilizer is commonly used to supply sufficient N for plant uptake, for which urea is one of the highly preferred synthetic N fertilizers due to its high N content. Unfortunately, N provided by urea is rapidly lost upon urea application to soils through ammonia volatilization, leaching, and denitrification. Thus, treatment of urea with urease inhibitor (N-(n-Butyl) Thiophosphoric Triamide (NBPT)) is among the solutions to slow down urea hydrolysis, therefore reducing loss of NH3 and saving N available for plant uptake and growth. A field study was carried out to evaluate the effects of NBPT-coated urea (NCU) at varying rates on growth, yield, and nitrogen use efficiency (NUE) of maize in tropical soil. The experiment was conducted at Field 15, Universiti Putra Malaysia, Serdang, Selangor, Malaysia, and maize (Zea mays var. Thai Super Sweet) was used as the test crop. The results showed that all maize grown in soils applied with urea coated with NBPT (NCU) (T2, T3, T4, and T5) had significantly (P ≤ 0.05) higher chlorophyll content compared to the control (T0 and T1). The surface leaf area of maize grown in NCU-treated soils at 120 kg N h−1 (T3) was recorded as the highest. NCU at and 96 kg N ha−1 (T3 and T4) were relatively effective in increasing maize plant dry weight, yield, and N uptake. Improvement of NUE by 45% over urea was recorded in the treatment of NCU at 96 kg N ha−1. NBPT-coated urea (NCU) at 96 kg N ha−1 had potential to increase the growth, yield, nitrogen uptake, and NUE of maize by increasing the availability of N for plant growth and development.

scholarly journals Penggunaan Azotobacter dan Kompos Kulit Buah Kakao Terhadap Pertumbuhan dan Efisiensi Penggunaan Nitrogen Pada Pembibitan Utama Kelapa Sawit

2021 ◽  
Vol 23 (1) ◽  
pp. 50
Author(s):  
Wilda Lumban Tobing ◽  
Mariani Sembiring
Keyword(s):  
Nitrogen Use Efficiency ◽  
Oil Palm ◽  
N Uptake ◽  
Dry Weight ◽  
Research Area ◽  
College Of Agriculture ◽  
Nitrogen Use ◽  
Fruit Skin ◽  
Use Efficiency ◽  
The University

<p>The expansion of oil palm plantations continues to increase so that it requires quality seed. Nurseries need to be done before moving to the field. The use of Azotobacter and cocoa fruit skin compost is one way to increase the  growth and nitrogen use efficiency in oil palm in main nursery. This research was aimed to know the growth and nitrogen use efficiency of palm oil in main nursery. This research was conducted on the research area of the Agricultural Agribusiness College of Agriculture Practices (STIPAP) Medan and the Laboratory of Balai Pengkajian Teknologi Pertanian (BPTP) of North Sumatra and the Agricultural Laboratory of the University of North Sumatera from February until Juli 2013. The method used was Randomized Group Design factorial with 3 replications and followed by Duncan test at α=5%. The first factor is Azotobacter including without giving Azotobacter (A0), 20 ml/polybag (A1) and 40 ml/polybag (A2). The second factor is cocoa fruit skin compost, which consists of 3 of them, namely without compost (K0), 125 g/polybag (K1), and 250 g/polybag (K2). The research parameters were plant dry weight (g), nitrogen uptake (mg) and N use efficiency (EPN). The results showed that the use of Azotobacter and cocoa fruit skin compost were able to significantly increasing dry weight of plant and N uptake of oil palm seeds and gave the highest EPN value of 12.93.  </p>

RELATIVE PERFORMANCE OF BORON, SULPHUR AND ZINC COATINGS ONTO PRILLED UREA FOR INCREASING PRODUCTIVITY AND NITROGEN USE EFFICIENCY IN MAIZE

2017 ◽  
Vol 54 (4) ◽  
pp. 577-591 ◽  
Author(s):  
VIJAY POONIYA ◽  
YASHBIR SINGH SHIVAY ◽  
MADAN PAL ◽  
RADHIKA BANSAL
Keyword(s):  
Nitrogen Use Efficiency ◽  
Field Experiments ◽  
N Uptake ◽  
Maize Yield ◽  
Nitrogen Use ◽  
Total N ◽  
Prilled Urea ◽  
Zn Uptake ◽  
Coated Urea ◽  
Use Efficiency

SUMMARYDeficiencies of micro (Zn, B) and secondary (S) nutrients are well-documented in soil as well as in cereal crops, leading to decreased crop yields and low nutritional quality of food. We evaluated the effects of coated urea on maize yield, N and Zn uptake, and input cost relationships. Field experiments were conducted on maize to test boron-coated (BCU), sulphur-coated (SCU) and zinc-coated urea (ZnCU) during 2013 and 2014. On the basis of 2 years’ average data, the highest grain yield was achieved with 0.5% BCU, 5% SCU and 2.5% ZnCU as zinc sulphate hepta hydrate. These treatments increased yields by 5.4, 12.8 and 9.9% over prilled urea (PU), respectively. Application of 0.5% BCU (supplying 1.4 kg B ha−1), 5% SCU (supplying 14.1 kg S ha−1) and 2.5% ZnCU (supplying 7.05 kg Zn ha−1) registered the highest N concentrations and uptake in grain and stover. Total N uptake (grain + stover) was increased by 7.6, 16.7 and 17.1% with BCU, SCU and ZnCU treatments over PU. As compared to PU, Zn concentration in maize grain was significantly higher and total Zn uptake (grain + stover) increased by 32.4% with 2.5% ZnCU. Coated urea materials also enhanced the partial factor productivity (PFPN), agronomic efficiency (AEN), recovery efficiency (REN) and harvest index (HIN) over those of PU. From the economic viewpoint this study suggests that coating of urea with 0.3% boron, 5% sulphur or 2% zinc gives maximum net returns and benefit-cost ratio. Our data indicate that coating of B, Zn and S onto urea increases maize yield, profitability and nitrogen use efficiency in the western Indo-Gangetic plains of India.

scholarly journals Nitrogen Use Efficiency of Local and National Aromatic Rice Varieties in Indonesia

2018 ◽  
Vol 5 (3) ◽  
pp. 79-88
Author(s):  
Chairunnisak Chairunnisak ◽  
Sugiyanta Sugiyanta ◽  
Edi Santosa
Keyword(s):  
Nitrogen Use Efficiency ◽  
N Uptake ◽  
Aromatic Rice ◽  
Rice Varieties ◽  
Nitrogen Use ◽  
N Content ◽  
Low Input ◽  
Plot Yield ◽  
Use Efficiency ◽  
Sampling Plot

Nitrogen use efficiency (NUE) is a necessitate in order to enhance sustainable rice farming in Indonesia. Thus, objective of present research was to evaluate NUE of local and national Indonesian superior aromatic rice treated with different levels of nitrogen fertilizer (N). Planting plot was arranged using five levels of N as the main plot, i.e; 0, 45, 90, 135 and 180 kg ha-1; and two rice varieties as subplot, i.e: Sigupai Abdya (local) and Inpari 23 Bantul (national). The results showed application 180 kg N ha-1 to Sigupai  Abdya significantly increased the plant height. However, it also postponed the flowering time. Inpari 23 Bantul treated with 180 kg N ha-1 produced the highest number of tillers. Combination of 90 kg N ha-1 with Sigupai Abdya variety significantly reduced the number of empty grains. Sigupai Abdya variety has a higher number of grains per panicle and sampling plot yield than Inpari 23 Bantul, and  dosage 90 kg N ha-1 increases grain yield per clump also sampling plot yield significantly. Nitrogen at 180 kg N ha-1 made Sigupai Abdya variety has high N content and absorption N in primordia phase, and the Inpari 23 Bantul variety had grain with high N content. Nitrogen at 90 kg ha-1 caused Sigupai Abdya variety at primordia phase had NUE higher than Inpari 23 Bantul. This study showed that local variety Sigupai Abdya is suitable for development as rice with low input NKeywords: Aceh aromatic, low input, nitrogen dose, N uptake, Oryza sativa L. 

scholarly journals Supplementing Nitrogen in Combination with Rhizobium Inoculation and Soil Mulch in Peanut (Arachis hypogaea L.) Production System: Part II. Effect on Phenology, Growth, Yield Attributes, Pod Quality, Profitability and Nitrogen Use Efficiency

Agronomy ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1513 ◽  
Author(s):  
Mousumi Mondal ◽  
Milan Skalicky ◽  
Sourav Garai ◽  
Akbar Hossain ◽  
Sukamal Sarkar ◽  
...  
Keyword(s):  
Plant Growth ◽  
Arachis Hypogaea ◽  
Nitrogen Use Efficiency ◽  
Growth Yield ◽  
Recommended Dose ◽  
Optimum Dose ◽  
Nitrogen Use ◽  
Peanut Crop ◽  
Arachis Hypogaea L ◽  
Use Efficiency

Peanut (Arachis hypogaea L.) is adorned as the one of the important sources of vegetable oil, protein, vitamins and several minerals, which could mitigate the nutritional gap worldwide. However, peanut cultivation in winter suffers from low temperature stress and knowledge lacuna regarding the optimum dose nitrogen. Therefore, the present investigations were carried out during the winter seasons 2015–2016 and 2016–2017 at the district seed farm of Bidhan Chandra Krishi Viswavidyalaya, an agricultural university in West Bengal, India (23°26’ N, 88°22´ E, elevation 12 m above mean sea level) to facilitate the comprehensive study of plant growth, productivity and profitability of an irrigated peanut crop under varied levels of nitrogen: with and without a rhizobium inoculants and with and without polythene mulch. Quality traits and nutrient dynamics were also itemized. Fertilizing with 100% of the recommended dose of nitrogen combined with rhizobium inoculant and polythene mulch significantly enhanced peanut plant growth, yield and yield-attributing traits, while resulting in the maximum fertilizer (i.e., nitrogen, phosphorus and potassium) uptake by different plant parts. The greatest number of root nodules occurred in the treatment that received 75% of the recommended dose of nitrogen with rhizobium supplementation under polythene mulch, while 50% of the recommended dose of nitrogen with no rhizobium resulted in maximum fertilizer nitrogen use efficiency. Applying the full recommended dose of nitrogen with the rhizobium inoculants and mulch resulted in maximum profitability in the peanut crop.

Growth, yield and nitrogen use efficiency of dry-seeded rice as influenced by nitrogen and seed rates in Bangladesh

2016 ◽  
Vol 186 ◽  
pp. 18-31 ◽  
Author(s):  
Sharif Ahmed ◽  
Elizabeth Humphreys ◽  
Muhammad Salim ◽  
Bhagirath S. Chauhan
Keyword(s):  
Nitrogen Use Efficiency ◽  
Growth Yield ◽  
Nitrogen Use ◽  
Use Efficiency

scholarly journals Synthesis of Climate, Soil Factors, and Nitrogen Management Practices Affecting the Responses of Wheat Productivity and Nitrogen Use Efficiency to Nitrogen Fertilizer in China

2018 ◽  
Vol 10 (10) ◽  
pp. 3533 ◽  
Author(s):  
Yunqi Wang ◽  
Jiapeng Yang ◽  
Rui Zhang ◽  
Zhikuan Jia
Keyword(s):  
Nitrogen Use Efficiency ◽  
Management Practices ◽  
Wheat Yield ◽  
Soil Factors ◽  
Nitrogen Use ◽  
N Application ◽  
Average Annual Temperature ◽  
Coated Urea ◽  
Use Efficiency ◽  
N Management

The reported effects of nitrogen (N) fertilizer on wheat yield and nitrogen use efficiency (NUE) vary greatly, due to differences in climate, soil factors, and N management practices in different regions of China. We collected literature published during 1950–2017 that reported the yield and NUE for wheat in China, under N application and control treatments, and analyzed the data therein. A significant increase in yield was observed with N application, and varied with climate, soil factors, and N management practices in different regions. A larger increase in yield was observed under an average annual temperature of 13–15 °C, an average annual precipitation of >800 mm, respectively. Greater yield-increasing effects were observed in soil with a coarse soil texture, lower soil total N, available N, and a soil pH of ≤7 and >8, respectively. In Northwest China, the yield increase was greater under multiple coated urea applications after anthesis, while the higher NUE was observed under single coated urea application before anthesis. In North China, the yield and NUE were greater under multiple coated urea applications before anthesis. In South China, the yield and NUE were greater under multiple N applications. Consequently, to improve wheat yield and NUE, site-specific N management practices should be adopted.

A quantitative genetics approach to nitrogen use efficiency in sugarcane

2010 ◽  
Vol 37 (5) ◽  
pp. 448 ◽  
Author(s):  
Alex Whan ◽  
Nicole Robinson ◽  
Prakash Lakshmanan ◽  
Susanne Schmidt ◽  
Karen Aitken
Keyword(s):  
Protein Content ◽  
Nitrogen Use Efficiency ◽  
Female Parent ◽  
Dry Weight ◽  
Plant Size ◽  
Saccharum Officinarum ◽  
Leaf Protein ◽  
Nitrogen Use ◽  
Shoot Dry Weight ◽  
Use Efficiency

The economic and environmental consequences of inefficient use of nitrogen (N) fertiliser in agricultural crops is of concern worldwide, so new crop varieties with improved nitrogen use efficiency (NUE) are sought. Here, we report the first study of mapping quantitative trait loci (QTL) for nitrogen physiology traits in sugarcane. QTL analysis was undertaken for each parent of a segregating bi-parental sugarcane mapping population. We grew 168 progeny under limiting (0.2 mM NH4NO3) and non-limiting (5.0 mM NH4NO3) N supplies in two glasshouse experiments. Significant marker-trait associations (MTA) were detected in each treatment for shoot dry weight, root dry weight, total shoot N, shoot internal NUE (iNUE; measured as units shoot dry weight per unit N), leaf protein content and glutamine synthetase (GS) activity. MTA for GS activity did not co-locate with other traits except leaf protein content, indicating that variation in GS activity is not linked to plant size or iNUE during early growth. Under high N, there were no significant MTA for iNUE among markers from the male parent, Q165, an Australian commercial cultivar, but six MTA were found for markers inherited from the female parent, IJ76–514, a Saccharum officinarum ancestral variety. The results indicate that variation for iNUE under high N may be lower in commercial varieties than unimproved genotypes. Further, four MTA were consistent with previous field-based research on sugar and biomass production. Our study provides initial evidence that QTL may be incorporated in sugarcane breeding programs targeting improved NUE.

Nitrogen use efficiency, economic return and yield performance of Pigeonpea [Cajanus cajan (L.) Millsp.] as influenced by nipping and fertility levels

2019 ◽  
Author(s):  
A.K. Dhaka ◽  
Satish Kumar ◽  
Bhagat Singh ◽  
Karmal Singh ◽  
Amit Kumar ◽  
...  
Keyword(s):  
Nitrogen Use Efficiency ◽  
N Uptake ◽  
Utilization Efficiency ◽  
N Balance ◽  
Flower Initiation ◽  
Recovery Efficiency ◽  
Nitrogen Use ◽  
Total N ◽  
Yield Attributes ◽  
Use Efficiency

An experiment was conducted to study nitrogen use efficiency in pigeonpea at Research farm, CCS Haryana Agricultural University, Hisar, India having three nipping treatments (no nipping, nipping at just start of branching and nipping at flower initiation) and five fertility levels (control, 20 kg N + 40 kg P2O5/ha, 30 kg N + 40 kg P2O5 /ha, 40 kg N + 40 kg P2O5/ha and 20 kg N + 40 kg P2O5/ha + foliar spray of 2% N immediately after nipping) replicated thrice in split plot design during growing seasons of 2016 and 2017. Nipping at start of branching reduced the plant height, while increased primary and secondary branches, pods/plant and yield over no nipping. Significantly higher total N uptake, protein content, net return, B: C, agronomical NUE, physiologic NUE, agro-physiologic NUE, apparent recovery efficiency, utilization efficiency of N and partial N balance were improved with nipping at start of branching. Among fertility levels, 40 kg N + 40 kg P2O5 / ha recorded significantly higher yield attributes with 39.7 per cent higher seed yield over control. Significantly higher agronomic NUE, physiologic NUE, agro-physiological NUE, apparent recovery efficiency, utilization efficiency of N, partial N balance and NER were recorded with 20 kg/ha as compared to higher nitrogen doses.

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