scholarly journals Effects of Rice Husk Biochar Coated Urea and Anaerobically Digested Rice Straw Compost on the Soil Fertility, and Cyclic Effect of Phosphorus

Plants ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 75
Author(s):  
Ashoka Gamage ◽  
Ben Basnayake ◽  
Janendra De Costa ◽  
Othmane Merah
Keyword(s):  
Soil Fertility ◽  
Rice Straw ◽  
Rice Husk ◽  
Nitrogen Fertilizer ◽  
Fertilizer Application ◽  
Rice Grain ◽  
Coated Urea ◽  
Rice Husk Biochar ◽  
High Yielding Varieties ◽  
Coated Fertilizers

Fertilizer application in rice farming is an essential requirement. Most of the high-yielding varieties which are extensively grown throughout the country require recommended levels of fertilizers to obtain their potential yields. However, effective, and efficient ways of fertilizer application are of utmost importance. Coated fertilizers are used to reduce leaching nutrients and improve the efficiency of fertilizer. However, conventional coated fertilizers such as Sulphur coated urea and urea super granules are not popular among rice farmers in Sri Lanka owing to the high cost. Mixing urea-coated rice husk biochar causes a slow release of nitrogen fertilizer. This coated fertilizer and rice straw compost reduction the cost of importations of nitrogen-based fertilizers per unit area of cultivation. The study aimed to evaluate the effects of rice husk biochar coated urea and anaerobically digested rice straw compost on the soil fertility, and the cyclic effect of phosphorus. Concerning the pot experiment, rice grain yield was significantly higher in Rice husk biochar coated urea, triple super phosphate (TSP), and muriate of potash (MOP) with anaerobically digested rice straw compost. The lowest yield was observed in the control. The release of phosphate shows a cycle effect which is an important finding. Rice husk biochar coated urea can potentially be used as a slow-releasing nitrogen fertilizer. In addition, the urea coated with biochar is less costly and contributes to mitigating pollution of water bodies by inorganic fertilizers (NPK).

scholarly journals Influence of integrated soil fertility management on the vegetative growth parameters of Zea mays in the guinea savanna eco-zone of Ghana

2020 ◽  
Vol 65 (2) ◽  
pp. 187-197
Author(s):  
Abukari Ammal ◽  
Adutwum Abunyewa ◽  
Edward Yeboah
Keyword(s):  
Zea Mays ◽  
Soil Fertility ◽  
Rice Husk ◽  
Nitrogen Fertilizer ◽  
Vegetative Growth ◽  
Growth Parameters ◽  
Inorganic Nitrogen ◽  
Soil Fertility Management ◽  
Fertility Management ◽  
Rice Husk Biochar

All over the world, attention has been drawn to the use of eco-friendly biochar application to improve crop productivity. In Ghana, there are available potential feedstocks left unused and can be used for the production of biochar. Therefore, this study investigated the effect of different rates of rice husk biochar and different rates of inorganic nitrogen (N) on the growth of Zea mays in Nyankpala, Northern Ghana. Field experiments were conducted in the cropping period of 2012. The treatments involved 4 different rates of inorganic nitrogen fertilizer (0 kg Nha-1, 30 kg Nha-1, 60 kg Nha-1 and 90 kg Nha-1) and 3 different rates of rice husk biochar (0 ton ha-1, 2 ton ha-1 and 4 ton ha-1). The treatments were allocated in a split-plot design with three replications. The vegetative parameters assessed were the number of leaves, plant height and plant girth. Treatments showed a significant (p<0.05) influence on all the traits considered. The combined effects of inorganic nitrogen fertilizer and rice husk biochar significantly influenced the vegetative growth parameters of Zea mays with the maximum values recorded at 4 ton ha-1rice husk biochar. Yet, this observation corresponds with 2 ton ha-1 rice husk biochar which recorded optimum growth parameters compared to the control. Within the limit of this work, it was concluded that growth parameters of Zea mays in the Guinea Savannah Eco-Zone of Ghana could significantly be improved by applying 4 ton ha-1 rice husk biochar. Integrated soil fertility management (ISFM), a prudent combination of inorganic fertilizers and residues from various sources to sustain the environment is currently a necessity. The experiment revealed that the application of rice husk biochar can improve the growth parameters of Zea mays. Yet, further experiments need to be done using higher rates of rice husk biochar to ensure the appropriate rate of biochar application.

scholarly journals Effect of pyrolysis temperature on Si release of alkali-enhanced Si-rich biochar and plant response

Biochar ◽  
2021 ◽  
Author(s):  
Meng Wang ◽  
Negar D. Tafti ◽  
Jim J. Wang ◽  
Xudong Wang
Keyword(s):  
Rice Straw ◽  
Rice Husk ◽  
Pyrolysis Temperature ◽  
Weak Acid ◽  
Rice Grain ◽  
Neutral Salt ◽  
Salt Solutions ◽  
Plant Disease Control ◽  
Si Content ◽  
Lower Temperature

AbstractRecent studies have shown that silicon (Si) dissolution from biochar may be influenced by the pyrolysis temperature. In addition, the enhancement of biochar by treatment with alkali has been proposed to produce a Si source that can be used for environmentally friendly plant disease control. In this study, biochars from rice straw and rice husk pretreated with KOH, CaO and K2CO3 and then pyrolyzed at 350, 450 and 550 °C were prepared to evaluate the effects of pyrolysis temperature on Si release and plant uptake from alkali-enhanced Si-rich biochar. Extractable Si and dissolution Si from the prepared biochars were assessed by different short-term chemical methods and long-term (30-day) release in dilute acid and neutral salt solutions, respectively, along with a rice potting experiment in greenhouse. For both rice straw- and husk-derived alkali-enhanced biochars (RS-10KB and HS-10K2B, respectively), increasing the pyrolysis temperature from 350 to 550 °C generally had the highest extractable Si and increased Si content extracted by 5-day sodium carbonate and ammonium nitrate (5dSCAN) designated for fertilizer Si by 61–142%, whereas non-enhanced biochars had more extractable Si at 350 °C. The alkali-enhanced biochars produced at 550 °C pyrolysis temperature also released 82–172% and 27–79% more Si than that of 350 °C produced biochar in unbuffered weak acid and neutral salt solutions, respectively, over 30 days. In addition, alkali-enhanced biochars, especially that derived from rice husk at 550 °C facilitated 6–21% greater Si uptake by rice and 44–101% higher rice grain yields than lower temperature biochars, non-enhanced biochars, or conventional Si fertilizers (wollastonite and silicate calcium slag). Overall, this study demonstrated that 550 °C is more efficient than lower pyrolysis temperature for preparing alkali-enhanced biochar to improve Si release for plant growth.

Rice grain and starch properties: Effects of nitrogen fertilizer application

2011 ◽  
Vol 86 (1) ◽  
pp. 219-225 ◽  
Author(s):  
Narpinder Singh ◽  
Nisha Pal ◽  
Gulshan Mahajan ◽  
Sandeep Singh ◽  
Khetan Shevkani
Keyword(s):  
Nitrogen Fertilizer ◽  
Fertilizer Application ◽  
Rice Grain ◽  
Starch Properties

Combining no-tillage, rice straw mulch and nitrogen fertilizer application to increase the soil carbon balance of upland rice field in northern Benin

2016 ◽  
Vol 163 ◽  
pp. 152-159 ◽  
Author(s):  
Elliott Ronald Dossou-Yovo ◽  
Nicolas Brüggemann ◽  
Edward Ampofo ◽  
Attanda Mouinou Igue ◽  
Naab Jesse ◽  
...  
Keyword(s):  
Soil Carbon ◽  
Rice Straw ◽  
Nitrogen Fertilizer ◽  
Carbon Balance ◽  
Rice Field ◽  
Upland Rice ◽  
Fertilizer Application ◽  
No Tillage ◽  
Straw Mulch

scholarly journals PEMANFAATAN BIOCHAR SEKAM DAN KOMPOS JERAMI PADI TERHADAP PERTUMBUHAN DAN PRODUKSI PADI (Oryza sativa) PADA TANAH ORDO ULTISOL

2018 ◽  
Vol 15 (1) ◽  
pp. 42-50 ◽  
Author(s):  
WELLY HERMAN ◽  
ELARA RESIGIA
Keyword(s):  
Oryza Sativa ◽  
Rice Straw ◽  
Rice Husk ◽  
Soil Analysis ◽  
Random Group ◽  
Group Design ◽  
Rice Plants ◽  
Initial Soil ◽  
Rice Husk Biochar ◽  
Total P

ABSTRACT   The aim of this study were (1) to determine the effect of rice husk biochar and rice straw compost on growth and production rice (Oryza sativa) and (2) to determine the ability of rice husk biochar and rice straw compost in providing nutrients to Ultisol. The research was carried out February – July 2018 in Sungai Abang Village, Lubuk Alung Regency, Padang Pariaman. Research applied Random Group Design with  5 treatment : 0% Rice husk biochar + 0% Rice straw compost, 100% Rice husk biochar + 0% Rice straw compost, 75% Rice husk biochar + 25% Rice straw compost, 50% Biochar rice husk + 50% Rice straw compost and 25% Rice husk biochar + 75% Rice straw compost. Observations were made on soil and crops including initial soil analyzes ie before treatment was given, soil analysis after incubation, and final soil analysis (pH, N-total, P-available, K-dd, Ca-dd, Mg-dd and Sulfur) and plant observations include plant height, the  productive of tiller, total of tiller  and weight of grain per hectare. From the research that has been done can be concluded (1) the use of rice husk biochar and rice straw compost affect the growth and production of rice plants seen in the treatment of 75% rice husk biochar + 25% Rice Straw rice husk biochar with the number of productive tillers of 29 tillers and production of rice plants as much as 8,238 tons / ha and (2) the use of rice husk biochar and rice straw compost is able to provide nutrients in Ultisol indicated by increasing pH, N, P, K, Ca, Mg and S.

scholarly journals Effects of rice husk and cassava mill effluent compost on upland rice cultivation in Delta State, Nigeria

2020 ◽  
Vol 8 (9) ◽  
pp. 200-209
Author(s):  
Ojobor SA ◽  
◽  
Egbuchua CN ◽  
Adeoye GO ◽  
◽  
...  
Keyword(s):  
Soil Fertility ◽  
Rice Husk ◽  
Ph Value ◽  
Upland Rice ◽  
Block Design ◽  
Organic Fertilizer ◽  
Analysis Data ◽  
Residual Effects ◽  
Cow Dung ◽  
Rice Grain

Low rice yields in Nigeria are attributed to poor soil fertility. Inorganic fertilizers used to improve soil fertility are expensive and not readily available. This work aimed at evaluating the nutrient potential of rice husk and cassava effluent compost for production of rice in Abraka, Delta State, Nigeria. Four formulations were made with rice husk (RH) and cow dung in ratio 7:3 by weight using water and cassava effluent [RH with water (RH), RH + cow dung with water (RHCd), RH with cassava effluent (RHC), RH + cow dung with cassava effluent (RHCdC)] and were applied at 2.5, 5 and 10 t/ha with control. Rice seeds were sown for two years in a randomized complete block design. Residual effects were monitored in the third year. Plant height (PH), leaf area (LA), dry matter (DM) and rice grain yield (GY) were measured as well as soil samples were taken for post-cropping analysis. Data were analyzed with ANOVA at α0.05. The results revealed that treatment RHCd at 10 t/ha had highest PH and LA while RHCdC at 10 t/ha produced the highest DM and GY in both years and in residual study. Treatment RHCdC at 10 t/ha had the highest soil pH value, organic carbon and RHCd at 10 t/ha had the highest total nitrogen at harvest in second year. Both treatments increased soil nutrients at harvest than other treatments and improved soil fertility. Keywords: Soil amendment, cow dung, organic fertilizer, rice yield, Abraka.

scholarly journals Role of Residual Organic Materials on Productivity of Zea mays L. for Sustainable Soil Fertility Restoration in the Guinea Savannah Zone, Ghana

2016 ◽  
Vol 4 (2) ◽  
pp. 131-142
Author(s):  
I. K Dzomeku ◽  
O Illiasu ◽  
P. T. Birteeb ◽  
S. Obanyi
Keyword(s):  
Soil Fertility ◽  
Grain Yield ◽  
Rice Straw ◽  
Rice Husk ◽  
Seed Weight ◽  
Organic Materials ◽  
Residual Effects ◽  
Groundnut Shell ◽  
One Year ◽  
100 Seed Weight

A field experiment was conducted at Nyankpala, near Tamale, Ghana, during the 2014 cropping season and continued during 2015, to investigate one year residual effects of indigenous organic materials (biochar, groundnut shell, rice husk and rice straw) on the growth and yield of maize. It was a 4×3×3 factorial experiment consisting of 4 organic materials at 3 levels (2.5, 5 and 7.5 t ha-1 on dry matter basis) and 3 nitrogen (N) levels (0, 45 and 90 kg/ha N) laid out in a Randomized Complete Block Design with four replications. The study revealed that integrated management of one year residuals of the organic materials with inorganic N supported increased plant height and grain yield, and moderated time of flowering to promote production of maize variety “Wang Dataa”. Application of 7.5 t/ha biochar + 45 kg/ha N, similarly 5 t/ha biochar + 90 kg/ha N supported tallest crop of 200 cm, whilst early flowering ranged 47 to 50 days with 2.5 t/ha biochar + 90 kg N/ha, 5 t/ha biochar + 45 kg N/ha, 7.5 t/ha biochar+ 90 kg N/ha, 2.5 t/ha groundnut shell + 90 kg N/ha and 7.5 t/ha rice straw + 45 kg N/ha. Grain yield was maximised with 7.5 t/ha biochar + 90 kg N/ha, 5 t/ha groundnut shell + 45 kg N/ha, 7.5 t/ha groundnut shell + 90 kg N/ha and 7.5 t/ha rice husk + 90 kg N/ha in the range of 3000 - 3600 kg/ha. The results also showed strongly that either residual nutrients and other plant growth conditions obtained from the organic materials or application N determined LAI, height of cob attachment, cob length, cob weight, 100 seed weight and stover biomass. Residual conditions provided by 7.5 t/ha of biochar gave the highest LAI. The more increased height of cob attachment ranged from 90 to 100 cm, provided by as low as 2.5 t/ha of biochar. Best cob length of 15 to 17 cm was obtained from 2.5 t/ha biochar and 5 t/ha groundnut shell. Cob weight under residual organic materials was in the range of 125 to 165 g/cob with 5 t/ha biochar or groundnut shell and 7.5 t/ha rice straw adequate to maximize the trait. Residual organic materials impacted on 100 seed weight with 5 t/ha of biochar and 7.5 t/ha groundnut shell impacted largest grain size of 25.5g. Stover weight was both highly significantly determined by residual effects of organic materials and N. Application of 5 t/ha biochar or 5 t/ha groundnut shell or 7.5 t/ha rice husk was adequate for highest stover weight. In this study, application of 45 kg N/ha was overwhelmingly sufficient to optimize leaf area index, height of cob attachment, cob length, cob weight, 100 seed weight and stover weight. Pearson correlation coefficients of grain yield with other traits exhibited robust relationships signifying strong impact of integrated soil fertility management of one year residual organic materials and N on maize production in the Guinea savannah. Grain yield prediction indicated treatments were best fitted in polynomials with 7.5 t/ha biochar + 90 kg N/ha for optimum grain yield.

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