Increasing nitrogen conservation by adding urease inhibitor NBPT to chicken compost manure

AbstractIn this study, we explored the role of biochar (BC) and/or urease inhibitor (UI) in mitigating ammonia (NH3) and nitrous oxide (N2O) discharge from urea fertilized wheat cultivated fields in Pakistan (34.01°N, 71.71°E). The experiment included five treatments [control, urea (150 kg N ha−1), BC (10 Mg ha−1), urea + BC and urea + BC + UI (1 L ton−1)], which were all repeated four times and were carried out in a randomized complete block design. Urea supplementation along with BC and BC + UI reduced soil NH3 emissions by 27% and 69%, respectively, compared to sole urea application. Nitrous oxide emissions from urea fertilized plots were also reduced by 24% and 53% applying BC and BC + UI, respectively, compared to urea alone. Application of BC with urea improved the grain yield, shoot biomass, and total N uptake of wheat by 13%, 24%, and 12%, respectively, compared to urea alone. Moreover, UI further promoted biomass and grain yield, and N assimilation in wheat by 38%, 22% and 27%, respectively, over sole urea application. In conclusion, application of BC and/or UI can mitigate NH3 and N2O emissions from urea fertilized soil, improve N use efficiency (NUE) and overall crop productivity.

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Effects of bamboo biochar on nitrogen conservation during co-composting of layer manure and spent mushroom substrate

Environmental Technology ◽

10.1080/09593330.2021.1936201 ◽

2021 ◽

pp. 1-24

Author(s):

Bangxi Zhang ◽

Beibei Fan ◽

Iram Hassan ◽

Yutao Peng ◽

Ruonan Ma ◽

...

Keyword(s):

Spent Mushroom Substrate ◽

Nitrogen Conservation

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Foliar Urea with N-(n-butyl) Thiophosphoric Triamide for Sustainable Yield and Quality of Pineapple in a Controlled Environment

Sustainability ◽

10.3390/su13126880 ◽

2021 ◽

Vol 13 (12) ◽

pp. 6880

Author(s):

Mohammad Amdadul Haque ◽

Siti Zaharah Sakimin ◽

Phebe Ding ◽

Noraini Md. Jaafar ◽

Mohd Khanif Yusop ◽

...

Keyword(s):

Nitrogen Loss ◽

Growth Yield ◽

Fruit Weight ◽

Soluble Solids ◽

Urea Solution ◽

Urease Inhibitor ◽

N Losses ◽

N Accumulation ◽

Yield And Quality

In agricultural production, nitrogen loss leads to economic loss and is a high environmental risk affecting plant growth, yield, and quality. Use of the N fertilizer with a urease inhibitor is thus necessary to minimize N losses and increase the efficiency of N. This study aimed to evaluate the effects of N-(n-butyl) Thiophosphoric Triamide (NBPT) on the growth, yield, and quality of pineapple. The experiment involved two foliar fertilizer treatments: 1% (w/v) urea solution with NBPT (2.25 mL kg−1 urea) was treated as NLU (NBPT Liquid Urea), and the same concentration of urea without NBPT served as the control. Both were applied 12 times, starting 1 month after planting (MAP) and continuing once a month for 12 months. The application of urea with NBPT notably increased the above-ground dry biomass per plant (20% and 10% at 8 and 12 MAP, respectively), leaf area per plant (23% and 15% at 8 and 12 MAP, respectively), N accumulation per plant (10%), PFPN (Partial Factor Productivity) (13%), and average fruit weight (15%) compared to the treatment with urea alone (control). The analysis of quality parameters indicated that urea with NBPT improves TSS (Total Soluble Solids) (19%), ascorbic acid (10%), and sucrose (14%) but reduces the total organic acid content (21%) in pineapple. When using urea with a urease inhibitor (NBPT), there was a significant improvement in growth, yield, quality, and nitrogen use efficiency, with the additional benefit of reduced nitrogen losses, in combination with easy handling. Hence, urea with a urease inhibitor can be used as a viable alternative for increasing pineapple yield by boosting growth with better fruit quality.

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Fate of sulfamethoxazole in compost, manure and soil amended with previously stored organic wastes

The Science of The Total Environment ◽

10.1016/j.scitotenv.2021.150023 ◽

2021 ◽

pp. 150023

Author(s):

Laure Vieublé Gonod ◽

Lesline Dellouh ◽

Aurore Andriamalala ◽

Valérie Dumény ◽

Valérie Bergheaud ◽

...

Keyword(s):

Organic Wastes ◽

Compost Manure

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Effect of Fertilization with Urea and Inhibitors on Growth, Yield and CBD Concentration of Hemp (Cannabis sativa L.)

Sustainability ◽

10.3390/su13042157 ◽

2021 ◽

Vol 13 (4) ◽

pp. 2157

Author(s):

Ioanna Kakabouki ◽

Angeliki Kousta ◽

Antigolena Folina ◽

Stella Karydogianni ◽

Charikleia Zisi ◽

...

Keyword(s):

Plant Height ◽

Field Experiments ◽

Cannabis Sativa ◽

Nitrification Inhibitor ◽

Growth Yield ◽

Urease Inhibitor ◽

Significance Level ◽

Yield And Quality ◽

Positive Effect ◽

Urea Fertilization

Field experiments were conducted during 2019 in two different locations in Greece (Athens and Farsala) to evaluate the effect of urea and urea fertilization with inhibitors on the agronomic yield and quality characteristics of two cannabis varieties (Cannabis sativa L.), “Uso31”and “Fedora 17”. The experimental design was split-plot with four different fertilization treatments—control, Urea (U), urea with Urease Inhibitor (UI), and urea with Nitrification Inhibitor (NI) and urease inhibitor (UI). The significance of differences between treatments was estimated by using Tukey’s test with a significance level of p = 0.05. The plant height was significantly affected by the different fertilizations and different varieties as well as by the two locations. The maximum plant height was 197 cm for “Fedora 17”in Farsala. The seed yield was higher forthe urea with inhibitors treatment in both varieties. The Cannabidiol (CBD) content was significantly affected by the fertilization—it was higher in urea with inhibitors in “Uso31”and “Fedora 17” treatments. The lowest CBD content value was 1.29% (control) and the highest was 1.69% (urea NI + UI). In conclusion, in both varieties, it seems that urea with inhibitors has a positive effect on their growth, as well as on the increase in cannabidiol (CBD) content.

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