Wheat yield and physico-chemical properties of a sodic soil from semi-arid area of Iran as affected by applied gypsum

Geoderma ◽  
2013 ◽  
Vol 193-194 ◽  
pp. 246-255 ◽  
Author(s):  
Fatemeh Rasouli ◽  
Ali Kiani Pouya ◽  
Najafali Karimian
Keyword(s):  
Wheat Yield ◽  
Chemical Properties ◽  
Arid Area ◽  
Sodic Soil ◽  
Physico Chemical ◽  
Semi Arid

scholarly journals Effect of tree canopy on species composition, diversity and biomass of herbaceous vegetation and soil characteristics in semi-arid forests of the Aravalli hills

2020 ◽  
Author(s):  
Shriya Garg ◽  
Rajendra Kr. Joshi ◽  
Satish Chandra Garkoti
Keyword(s):  
Species Composition ◽  
Physicochemical Properties ◽  
Chemical Properties ◽  
Canopy Gaps ◽  
Herbaceous Species ◽  
Soil Physicochemical Properties ◽  
Herbaceous Vegetation ◽  
Positive Effects ◽  
Physico Chemical ◽  
Semi Arid

Abstract Background: Herbaceous vegetation is of great ecological importance and responds quickly to environmental changes. Present study was aimed to understand the variation in herbaceous species composition, diversity, biomass and soil physicochemical properties in canopy gaps and under the canopy of semi-arid forests in the Aravalli hills. Methods: Four permanent plots consisting of canopy gaps and under canopy were established. To study herbs phytosociological attributes and biomass, 10 quadrats of 0.5 x 0.5 m size were laid in each plot. For soil physico-chemical properties, 5 soil samples were collected randomly at 0-10 cm depth from each plot. Relationship between biodiversity indices, herbs biomass and soil physicochemical properties was determined using Redundancy Analysis (RDA) and correlation analyses. Results: The sites differed in terms of herbaceous species composition, diversity, biomass and soil physico-chemical properties. Canopy gaps were dominated by grasses while forbs were higher under the canopy. Across the sites, poaceae was the dominant family. All species showed contagious distribution pattern. Oplismenus burmannii reported highest IVI (138.0; 230.5) under the canopy while Achyranthes aspera (56.15) and Eragrostis ciliaris (53.1) had highest IVI in canopy gaps. Diversity indices were higher in canopy gaps. Herbaceous community biomass in canopy gaps ranged from 700-900 gm-2 while under the canopy it ranged from 30-70 gm-2. Cenchrus ciliaris (597.97 gm-2) and Chrysopogon sp. (391.2 gm-2) constituted major proportion of biomass in canopy gaps. The soil of under canopy regions had lower pH and bulk density, but higher soil moisture (%), electrical conductivity, soil organic carbon (SOC), soil total nitrogen (TN), SOC stock and soil TN stock than the canopy gaps. Linear positive relationship between species diversity and biomass; negative relationship between soil chemical properties and herbaceous biomass was found in study area. Even though canopy had positive effects on soil physico-chemical properties, overall negative effect on herbaceous diversity and biomass was seen. Conclusions: Reduced light for photosynthesis and tree root competition for soil resources may be the major factors negatively affecting herbaceous diversity and biomass. Canopy had a significant impact and herbs species composition, diversity, biomass and soil physico-chemical properties showed distinct differences in relation to it.

scholarly journals Properties of Granular Nitrogen-Containing Fertilizers Based on Pine Sawdust and Studying its Effectiveness in Growing Wheat in the Agricultural Zone of the Krasnoyarsk Territory

2021 ◽  
Vol 14 (4) ◽  
pp. 570-581
Author(s):  
Vasily N. Romanov ◽  
◽  
Natalia S. Kozulina ◽  
Tatiana A. Snitkova ◽  
Albina V. Vasilenko ◽  
...  
Keyword(s):  
Ammonium Nitrate ◽  
Field Trial ◽  
Water Solution ◽  
Wheat Yield ◽  
Chemical Properties ◽  
Wheat Varieties ◽  
Pine Sawdust ◽  
Physico Chemical

A method for producing granular fertilizers based on pine sawdust containing ammonium nitrate is proposed. Physico-chemical properties of sawdust and fertilizers containing 20.0 wt.% nitrogen were studied. The effect of pretreatment of pine sawdust with 1 % wt. with a water solution of NaOH on the properties of granular fertilizers was explored. The results of a field trial on the cultivation of wheat varieties «Krasnoyarskaya 12» revealed the growth-stimulating effect of nitrogen-containing granular fertilizers in comparison with an unfertilized background. A more effective influenceon wheat yield of granular fertilizer fabricated from pine sawdust after their treatment with 1 % wt. with a water solution of NaOHThe achieved effect on 1,9 c/ha higher in comparison with thefertilizer based on original sawdust

Effects of conservation and standard tillage on soil physico-chemical properties and overall quality in a semi-arid agrosystem

Soil Research ◽  
2021 ◽  
Author(s):  
Roua Amami ◽  
Khaled Ibrahimi ◽  
Farooq Sher ◽  
Paul J. Milham ◽  
Dhouha Khriji ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Physico Chemical ◽  
Semi Arid
Sign in / Sign up

Export Citation Format

Share Document