scholarly journals Soil Chemical Properties as Influenced by Long Term Manuring and Nitrogen Fertilization in Bangladesh

2019 ◽  
pp. 1-9
Author(s):  
Fahamida Akter ◽  
Md. Mizanur Rahman ◽  
Md. Ashraful Alam
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Rice Straw ◽  
Green Manure ◽  
Organic Materials ◽  
Chemical Properties ◽  
Soil Chemical Properties ◽  
Organic Fertilizers ◽  
Total N

Organic fertilizers are enriched in plant nutrients which may enhance the soil chemical properties. However, studies on the effect of long term fertilization on soil chemical attributes is yet lacking in Bangladesh. Therefore, an experiment was conducted to assess the changes of soil chemical properties as influenced by long term manuring and nitrogen fertilizer in silt clay loam soil under rice-wheat cropping system. The experimental plot received different organic materials for the last 26 years (1988-2014). Five types of organic materials treatments such as control (no manure), cowdung, compost, green manure and rice straw were applied at the rate of 0, 25, 25, 7.5 and 1.5 t ha-1, respectively in a yearly sequence. Three levels of nitrogen viz. 0, 75 and 100 kg ha-1 for rice and 0, 80 and 120 kg ha-1 for wheat were applied in this study. Long term application of different organic materials positively increased soil organic carbon and total N, P, S and decreased pH and K, Ca and Mg availability. Increase in soil organic carbon was found maximum under green manure and lowest in rice straw applied soil. The green manure contributed to the maximum accumulation of soil nitrogen. N dose of 80 kg ha-1 was found effective in increasing availability of soil nutrients.

scholarly journals Long Term Manuring and Fertilization Effect on Soil Properties in Terrace Soil

2020 ◽  
pp. 44-52
Author(s):  
Firoz Ahmed ◽  
Majharul Islam ◽  
Md. Mahfujur Rahman ◽  
Md. Saikat Hossain Bhuiyan ◽  
M. A. Kader
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Soil Properties ◽  
Rice Straw ◽  
Green Manure ◽  
Mineral Fertilizers ◽  
Cow Dung ◽  
Cropping Pattern ◽  
N Content

The study was carried out the influence of long term manuring and fertilization on soil properties. Soil samples were collected in 2016 from a highly weathered terrace soil with rice-wheat cropping pattern at Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU) experimental farm having five OM (control, cow dung, green manure, rice straw and compost) treatments combined with three mineral N fertilizer (control, 155 kg ha-1, 220 kg ha-1) levels. Long term (28 years) application of mineral fertilizers and manure resulted in significant differences in soil organic carbon, total N content, C:N ratio of soil and soil pHKCl between the treatments. The  soil organic carbon content varied among the different treatments from 6.11 g OC kg-1 (application of rice straw and no N) to 9.43 g OC kg-1 (application of compost and 220 kg N ha-1 yr-1). The total soil N content varied among the different treatments from 0.41 g N kg-1 (application of rice straw and no N) to 0.73 g N kg-1 (application of compost and 220 kg N ha-1 yr-1). The C:N ratios of the soil varied among the different treatments from 13.3 (application of no exogenous OM  and no N) to 15.1(application of green manure and no N). The soil pH varied among the different treatments from 4.42 (application of cow dung and 220 kg N ha-1 yr-) to 4.89 (application of compost/cow dung and no N). So, long term fertilization and manuring undoubtedly bring some changes in the physiochemical soil properties of terrace soil.

Influence of agricultural management on soil organic carbon: A compendium and assessment of Canadian studies

2003 ◽  
Vol 83 (4) ◽  
pp. 363-380 ◽  
Author(s):  
A. J. VandenBygaart ◽  
E. G. Gregorich ◽  
D. A. Angers
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Management Practices ◽  
Agricultural Management ◽  
Organic Fertilizers ◽  
Published Data ◽  
Native Land ◽  
Soc Stocks ◽  
Long Term Studies

To fulfill commitments under the Kyoto Protocol, Canada is required to provide verifiable estimates and uncertainties for soil organic carbon (SOC) stocks, and for changes in those stocks over time. Estimates and uncertainties for agricultural soils can be derived from long-term studies that have measured differences in SOC between different management practices. We compiled published data from long-term studies in Canada to assess the effect of agricultural management on SOC. A total of 62 studies were compiled, in which the difference in SOC was determined for conversion from native land to cropland, and for different tillage, crop rotation and fertilizer management practices. There was a loss of 24 ± 6% of the SOC after native land was converted to agricultural land. No-till (NT) increased the storage of SOC in western Canada by 2.9 ± 1.3 Mg ha-1; however, in eastern Canada conversion to NT did not increase SOC. In general, the potential to store SOC when NT was adopted decreased with increasing background levels of SOC. Using no-tillage, reducing summer fallow, including hay in rotation with wheat (Triticum aestivum L.), plowing green manures into the soil, and applying N and organic fertilizers were the practices that tended to show the most consistent in creases in SOC storage. By relating treatment SOC levels to those in the control treatments, SOC stock change factors and their levels of uncertainty were derived for use in empirical models, such as the United Nations Intergovernmental Panel on Climate Change (IPCC). Guidelines model for C stock changes. However, we must be careful when attempting to extrapolate research plot data to farmers’ fields since the history of soil and crop management has a significant influence on existing and future SOC stocks. Key words: C sequestration, tillage, crop rotations, fertilizer, cropping intensity, Canada

scholarly journals Effects of long-term organic material applications and green manure crop cultivation on soil organic carbon in rain fed area of Thailand

2013 ◽  
Vol 1 (3) ◽  
pp. 29-36 ◽  
Author(s):  
Tomohide Sugino ◽  
Wanida Nobuntou ◽  
Nuttapong Srisombut ◽  
Praison Rujikun ◽  
Suphakarn Luanmanee ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Organic Material ◽  
Green Manure ◽  
Green Manure Crop ◽  
Crop Cultivation

Cropping system influences on soil chemical properties and soil quality in the Great Plains

2006 ◽  
Vol 21 (1) ◽  
pp. 26-35 ◽  
Author(s):  
M.M. Mikha ◽  
M.F. Vigil ◽  
M.A. Liebig ◽  
R.A. Bowman ◽  
B. McConkey ◽  
...  
Keyword(s):  
Great Plains ◽  
Cropping Systems ◽  
Chemical Properties ◽  
Cropping System ◽  
Soil Chemical Properties ◽  
Total N ◽  
Organic C ◽  
General Chemical ◽  
Study Sites

AbstractSoil management and cropping systems have long-term effects on agronomic and environmental functions. This study examined the influence of contrasting management practices on selected soil chemical properties in eight long-term cropping system studies throughout the Great Plains and the western Corn Belt. For each study, soil organic C (SOC), total N (TN), particulate organic matter (POM), inorganic N, electrical conductivity (EC), and soil pH were evaluated at 0–7.5, 7.5–15, and 15–30 cm within conventional (CON) and alternative (ALT) cropping systems for 4 years (1999–2002). Treatment effects were primarily limited to the surface 7.5 cm of soil. No-tillage (NT) and/or elimination of fallow in ALT cropping systems resulted in significantly (P<0.05) greater SOC and TN at 0–7.5 cm within five of the eight study sites [Akron, Colorado (CO); Bushland, Texas (TX); Fargo, North Dakota (ND); Mandan, ND; and Swift Current, Saskatchewan (SK), Canada]. The same pattern was observed with POM, where POM was significantly (P<0.05) greater at four of the eight study sites [Bushland, TX, Mandan, ND, Sidney, Montana (MT), and Swift Current, SK]. No consistent pattern was observed with soil EC and pH due to management, although soil EC explained almost 60% of the variability in soil NO3-N at 0–7.5 cm across all locations and sampling times. In general, chemical soil properties measured in this study consistently exhibited values more conducive to crop production and environmental quality in ALT cropping systems relative to CON cropping systems.

scholarly journals Effect of 26 Years of Intensively ManagedCarya cathayensisStands on Soil Organic Carbon and Fertility

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Jiasen Wu ◽  
Jianqin Huang ◽  
Dan Liu ◽  
Jianwu Li ◽  
Jinchi Zhang ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Soil Fertility ◽  
Ph Value ◽  
Organic Fertilizers ◽  
Intensive Management ◽  
Active Organic Matter ◽  
Carya Cathayensis ◽  
Major Nutrients

Chinese hickory (Carya cathayensis), a popular nut food tree species, is mainly distributed in southeastern China. A field study was carried out to investigate the effect of long-term intensive management on fertility of soils under aC.cathayensisforest. Results showed that after 26 years’ intensive management, the soil organic carbon (SOC) content of the A and B horizons reduced by 19% and 14%, respectively. The reduced components of SOC are mainly the alkyl C and O-alkyl C, whereas the aromatic C and carbonyl C remain unchanged. The reduction of active organic matter could result in degradation of soil fertility. The pH value of soil in the A horizon had dropped by 0.7 units on average. The concentrations of the major nutrients also showed a decreasing trend. On average the concentrations of total nitrogen (N), phosphorus (P), and potassium (K) of tested soils dropped by 21.8%, 7.6%, and 13.6%, respectively, in the A horizon. To sustain the soil fertility andC.cathayensisproduction, it is recommended that more organic fertilizers (manures) should be used together with chemical fertilizers. Lime should also be applied to reduce soil acidity.

scholarly journals Long-term fertilization effect of organic carbon and total nitrogen on floodplain soil

2019 ◽  
Vol 7 (2) ◽  
pp. 139
Author(s):  
Md. Majharul Islam ◽  
Md. Forhad Hossain ◽  
Md Mukul Mia ◽  
Md. Shaidul Islam ◽  
Md. Saikat Hossain Bhuiyan ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Soil Ph ◽  
Cropping Pattern ◽  
N Content ◽  
Total N ◽  
Floodplain Soil ◽  
Incubation Study ◽  
Fertilization Effect

Soil organic matter is the most often reported indicator of soil quality and productivity and an evidence of previous soil management. Therefore, in 2017, a laboratory incubation study was carried out in the experimental filed of Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh, Bangladesh under control condition at 25°C for 104 days to investigate the influence of long term manuring and fertilization on soil respiration by means of C mineralization. Soil samples were collected from floodplain soil with rice-rice cropping pattern at Bangladesh Agricultural University (BAU) experimental farm having eight treatments. Long term (33 years) application of fertilizers and manure resulted in significant differences in soil organic carbon, total N content, and soil pH KCl between the treatments. The soil organic carbon and total N content varied among the different treatments from14.9 g OC kg-1 to 17.0 g OC kg-1 and1.60 g N kg-1 (control) to 1.78 g N kg-1 (application of NPK). The soil pH varied among the different treatments from 5.65(application of NK) to 4.89 (application of N). This result indicates that more stable organic carbon was formed in NPK treated soil which is less prone to decomposition if present crop management has been changed.    

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