scholarly journals Effect of zinc nutrition on yield of rice-wheat cropping system and soil properties

2021 ◽  
Vol 8 (01) ◽  
Author(s):  
PEPAKAYALA VARALAKSHMI ◽  
POLAGANI NAGARJUNA ◽  
MOHAN BABU Y. N. ◽  
ADI LAKSHMI G. ◽  
ARADHNA KUMARI ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Aggregate Stability ◽  
Cropping System ◽  
Wheat Crop ◽  
Organic Carbon Content ◽  
Physical And Chemical Properties ◽  
Application Rates ◽  
Physical And Chemical ◽  
Zinc Application ◽  
And Chemical Properties

A study was conducted in an ongoing experiment under AICRP on micronutrients at nursery jhilli of RPCAU, research farm. The experiment consisted of thirteen treatments, of which twelve combinations were of four doses of zinc (Zn) (2.5, 5.0, 7.5 and 10 kg ha-1), three frequencies (only once, alternate year and every year) of application along with control with the no-zinc application. Rice and wheat crops were grown in succession with the recommended dosages of fertiliser viz. 120:60:40 of N: P2O5: K2O applied as Urea, DAP, and Potash, respectively. Surface soil samples (0-15 cm) were collected after the harvest of the wheat crop in the year 2018, i.e. after completion of six years of the experiment, and analysed for soil physical and chemical properties. The availability of nitrogen, sulphur, organic carbon content and aggregate stability increased, and the bulk density, phosphorous availability decreased with increasing doses and zinc application rates. No effect on soil availability of potassium, pH and EC. The treatment T7 i.e., application of zinc @ 7.5 kg Zn ha-1 in alternate year application was the best treatment with regards to yield of rice-wheat cropping (982.9 q ha-1) and also for good physical and chemical properties of the soil.

scholarly journals Physical and Chemical Properties of Cultivated Peat Soils in Four Trial Sites of ICCTF in Kalimantan and Sumatra, Indonesia

2015 ◽  
Vol 19 (3) ◽  
pp. 131 ◽  
Author(s):  
. Hikmatullah ◽  
. Sukarman
Keyword(s):  
Greenhouse Gas ◽  
Carbon Stock ◽  
Greenhouse Gas Emission ◽  
Chemical Properties ◽  
Organic Carbon Content ◽  
Physical And Chemical Properties ◽  
Gas Emission ◽  
Peat Soils ◽  
Physical And Chemical ◽  
And Chemical Properties

The large distribution of peat soils in Indonesia have important role in carbon stock and greenhouse gas emission which contribute to global warming issue. The objective of this study was to characterize physical and chemical properties of cultivated peat soils in four trial sites of Indonesia Climate Change Trust Fund (ICCTF) in Central Kalimantan, South Kalimantan, Riau and Jambi Provinces to provide a baseline data by a greenhouse gas emission study. Detailed soil observations were conducted using grid system with spacing of 25 × 50 m. A total of 16 representative peat soil profiles consisting of 74 soil samples of horizons were selected for laboratory analyses. The results showed that peat maturity varied from hemic to sapric in the surface layers and hemic in the subsurface layers, except in Site-2 that was fibric. The peat thickness ranged respectively from 5.4 to 7.0 m in Site-1 and Site-3, and from 0.5 to 2.5 m in site-2 and site-4, and all overlying fine-textured mineral soil (substratum). Depth of water table varied from 10 to 30 cm in Site-2 and Site-4, and from 30 to 70 cm in Site-1 and Site-3. Fiber content ranged from 13 to 57% and increased with depth indicating the peat was less decomposed. The bulk density was very low (0.07-0.24 g cm-3) and negatively correlated to fiber content (r = 0.74 for Kalimantan and r = 0.66 for Sumatra). The ash content was low (0.1-8.5%) and negatively correlated to organic carbon content (r = 0.89 for Kalimantan and r = 0.65 for Sumatra). Soil CEC was high and positively correlated to organic carbon content (r = 0.86 for Kalimantan and r = 0.93 for Sumatra). These soils showed very acid reaction (pH 3.3-4.7), low content of exchangeable bases and total P2O5 and K2O (HCl 25%). Based on these properties, the peat soils were grouped as oligotrophic ombrogenous peat. The estimated carbon stock for all the trial sites with total extent of 22.58 ha was 57,282 Mg C. The variation of thickness, maturity, and water table depth will imply to the magnitude of carbon reserves and greenhouse gas emissions. [How to Cite: Hikmatullah and Sukarman. 2014. Physical and Chemical Properties of Cultivated Peat Soils in Four Trial Sites of ICCTF in Kalimantan and Sumatra, Indonesia. J Trop Soils 19: 131-141. Doi: 10.5400/jts.2014.19.3.131]

scholarly journals Characterization and classification of soils of Northern hills Zone of Chhattisgarh, Madhya Pradesh

2021 ◽  
Vol 17 (AAEBSSD) ◽  
pp. 147-149
Author(s):  
P.N. Tripathi ◽  
U.S. Mishra ◽  
Pawan Sirothia ◽  
R.P. Singh
Keyword(s):  
Cation Exchange Capacity ◽  
Chemical Properties ◽  
Clay Content ◽  
Exchange Capacity ◽  
Organic Carbon Content ◽  
Physical And Chemical Properties ◽  
Clay Loam ◽  
Physical And Chemical ◽  
And Chemical Properties

Three representative soil pedonsof northern hills of Chhattisgarh, M.P were morphologically studied, characterized and classified. The soils are very deep, colour ranges from brown (10YR5/3) to dark brown (10YR3/3) and very dark greyish brown (10YR3/2) in different horizons. Fe and calcretes are observed in sub surface horizons. The texture in surface soils varied from clay loam to clay while in pedon 2, the texture was observed sandy clay loam throughout the profile. The soils are calcareous and pH ranged from 7.0 to 7.5. The organic carbon content in these soils were (4.4 g kg-1), low to medium (6.1 g kg-1) in surface and decreased with depth. Cation exchange capacity (CEC) were found high in horizons where clay content was more. Based on morphological, physical and chemical properties P1 and P3 were classified as VerticHaplustalfs and pedon (P2) was placed under Typic Haplustepts.

scholarly journals Humic Haplustox under different land uses in a high altitude environment in the Agreste region of Pernambuco, Brazil

2014 ◽  
Vol 38 (4) ◽  
pp. 1337-1349 ◽  
Author(s):  
Jane Kelly Silva Araujo ◽  
Mateus Rosas Ribeiro ◽  
Marcelo Metri Corrêa ◽  
Izabel Cristina de Luna Galindo ◽  
Valdomiro Severino de Souza Júnior
Keyword(s):  
Microbial Biomass ◽  
Chemical Properties ◽  
Aggregate Stability ◽  
Agricultural Activity ◽  
Native Forest ◽  
Relative Distribution ◽  
Physical And Chemical Properties ◽  
Land Uses ◽  
Physical And Chemical ◽  
And Chemical Properties

The Garanhuns Plateau in the Agreste region of the State of Pernambuco, Brazil is characterized by humid climatic conditions due to orographic rains, unlike the surrounding semiarid region. These soils are subjected to intense agricultural use and are extremely important for the regional economy. This study was carried out in the municipality of Brejão in the Agreste region with the aim of assessing changes in humic Haplustox soils subjected to different land uses. Four plots with different vegetation covers (native forest, secondary shrubby vegetation (capoeira), traditional cropping system, and planted pasture) were selected, and samples were taken from a soil profile and four small pits surrounding it at each site. Physical and chemical properties were assessed, including aggregate stability, humic organic fractions, and a microbiological evaluation through determination of basal respiration, microbial biomass carbon, and metabolic quotient. The soils under study showed physical and chemical properties typical of a Haplustox, such as low nutrient content, low cation exchange capacity, and high levels of acidity and Al saturation. The total organic carbon (TOC) contents were high regardless of the type of land use. Aggregates < 2 mm were dominant in all the conditions under study. The TOC content was higher in the soil under capoeira, 43.91 g kg-1 on the surface, while 34.36 and 33.43 g kg-1 of TOC were observed in the first layer of forest and pasture soils, respectively. While the microbial biomass C (MBC) was greater than 700 mg kg-1 in the forest and pasture areas (in the 0-5 cm layer), and 588 mg kg-1 in the soil under capoeira, these numbers were not statistically different. In the cultivated soil area, there was a reduction of around 28 % in TOC and MBC contents. Agricultural activity contributed to degradation of the humic horizon, as can be seen from a significant decrease in the TOC and changes in the relative distribution of the humic fractions. In contrast, aggregate stability was not altered as a function of the different land uses; the soil under planted pasture and capoeira were similar to the soil under native forest. Humin was the most important humified fraction for C reserves, contributing over 40 % of the TOC in these soils.

Effects of Tillage Practices on Productivity of Wheat under the Indo-Gangetic

2017 ◽  
Vol 4 (03) ◽  
Author(s):  
SUBASH CHAND ◽  
A. K. Singh ◽  
Rakesh Kumar
Keyword(s):  
Field Experiment ◽  
Soil Health ◽  
Chemical Properties ◽  
Uttar Pradesh ◽  
Cropping System ◽  
Physical And Chemical Properties ◽  
Gangetic Plains ◽  
Tillage Practices ◽  
Physical And Chemical ◽  
And Chemical Properties

Field experiment was conducted for two consecutive years at the research farm of Baba Raghav Das Post Graduate College, Deoria, Uttar Pradesh, India to evaluate the effect of different tillage practices on soil health andcrop productivity of wheat under the rice-wheat cropping system of Indo-Gangetic Plains of India under the irrigated ecosystem.Results revealed thattreatment T3 produced significantly higheryield attributes in terms of number of ear bearing shoots (407)as compared to T4(390). However, it was also recorded that the grain weight per spike and test weight were significantly lower in T3 and T4over rest of the practices. The similar trends were followed in case of grain yield under the T3 (45.60) being on a par with T4 (45.50 but it was recorded significantly superior over rest of the tillage practices. With respect to the soil physical and chemical properties, it was also noticed significantly higher under the treatment T4 as compared to other treatment.

Effect of sugarcane monocropping on soil physical and chemical properties in texturally varied soils

2016 ◽  
Author(s):  
S. Rama Lakshmi ◽  
T. Sreelatha ◽  
K. Veerabhadrarao ◽  
N. Venugopalarao
Keyword(s):  
Sandy Loam ◽  
Chemical Properties ◽  
Nutrient Status ◽  
Organic Carbon Content ◽  
Physical And Chemical Properties ◽  
Clay Loam ◽  
Micronutrient Status ◽  
Soil Fertility Status ◽  
Physical And Chemical ◽  
And Chemical Properties

The present study was formulated to study the effect of sugarcane monocropping on soil physical and chemical properties of different textural classess of popular sugarcane growing areas of Visakhapatnam district of Andhra Pradesh. Results revealed that soil physical properties under monocropping were negatively influenced with increasing frequency of ratooning in all the textural classes. However more influence was observed under clay loam soils compared to sandy loams. The data on soil fertility status in different ratoons indicated that the available macro nutrient status and soil organic carbon content was higher in all the surface soils compared to subsurface soils and it was the highest in clay loam soils followed by red loam and sandy loams soils. With in different textural classes, clay loam soils exhibited the highest micronutrient status followed by red loams and sandy loam soils.

scholarly journals Impact of Organic Wastes on Physical and Chemical Properties of Sandy and Loamy Soils in Egypt

2019 ◽  
pp. 1-9
Author(s):  
Atef Abdelaziz Ali Sweed ◽  
Osama Ebrahim Negim
Keyword(s):  
Electrical Conductivity ◽  
Organic Matter ◽  
Chemical Properties ◽  
Organic Wastes ◽  
Physical And Chemical Properties ◽  
Application Rates ◽  
Mud Cake ◽  
Physical And Chemical ◽  
Filter Mud ◽  
And Chemical Properties

The aim of this study was to evaluate the effect of two organic wastes used as soil amendments i.e. filter mud cake (FMC) and vinasse (V) on some physical and chemical properties of sandy and loamy sandy soils. Applications of organic were incubated with the soils for a three periods of 15, 30 and 60 days at four application rates (0, 0.5, 1 and 2%). This study was carried out in a two way randomized completely block design with three replications. After incubation periods, bulk density, porosity, water retention, soil pH, electrical conductivity (EC) and organic matter were determined. Results showed that the values of soil bulk density and soil pH were decreased with increasing the application rates of filter cake or vinasse compared with the control in two soils. In addition, application of different filter mud cake and vinasse rates to the study soils increased soil porosity, field capacity (FC), wilting point (WP), available water (AW), electrical conductivity (EC) and organic matter contents (OM) as compared to control at different period incubation time. The data of this study concluded that, organic wastes or byproducts of sugar industries could be applied to improve some soil properties.

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