Spatial heterogeneity of soil biochar content affects soil quality and wheat growth and yield

2016 ◽  
Vol 562 ◽  
pp. 690-700 ◽  
Author(s):  
Manuel Olmo ◽  
Ana María Lozano ◽  
Vidal Barrón ◽  
Rafael Villar
Keyword(s):  
Spatial Heterogeneity ◽  
Soil Quality ◽  
Growth And Yield ◽  
Wheat Growth

Spatial heterogeneity of soil quality around mature oil palms receiving mineral fertilization

2015 ◽  
Vol 66 ◽  
pp. 24-31 ◽  
Author(s):  
M.P. Carron ◽  
Q. Auriac ◽  
D. Snoeck ◽  
C. Villenave ◽  
E. Blanchart ◽  
...  
Keyword(s):  
Spatial Heterogeneity ◽  
Soil Quality ◽  
Mineral Fertilization ◽  
Oil Palms

scholarly journals Impact of integrated use of enriched compost, biochar, humic acid and Alcaligenes sp. AZ9 on maize productivity and soil biological attributes in natural field conditions

2019 ◽  
Vol 14 (2) ◽  
pp. 101-107 ◽  
Author(s):  
Azhar Hussain ◽  
Maqshoof Ahmad ◽  
Muhammad Zahid Mumtaz ◽  
Farheen Nazli ◽  
Muhammad Aslam Farooqi ◽  
...  
Keyword(s):  
Humic Acid ◽  
Grain Yield ◽  
Soil Quality ◽  
Microbial Biomass Carbon ◽  
Organic Amendments ◽  
Plant Growth Promoting Rhizobacteria ◽  
Growth And Yield ◽  
Maximum Increase ◽  
Maize Productivity ◽  
Biological Attributes

Organic amendments improve the soil quality and plant productivity as well as help in the establishment of introduced bacteria. The present study was conducted to evaluate the interactive impact of organic amendments and plant growth promoting rhizobacteria strain Alcaligenes sp. AZ9 to improve maize productivity and soil quality. organic amendments including rock phosphate enriched compost (RPEC), biochar, and humic acid were applied in soil along with and without Alcaligenes sp. AZ9. The results revealed that the sole application of organic amendments along with Alcaligenes sp. AZ9 showed increase in growth and grain yield of maize. However, a combined application of organic amendments (RPEC, biochar, and humic acid) along with Alcaligenes sp. AZ9 showed maximum increase in plant height up to 14%, shoot dry biomass up to 30%, 1000-grains weight up to 10%, grain yield up to 31%, stover yield up to 34%, and potassium (K) concentration in grains up to 12% as compared to absolute control. The increase in nitrogen (N) and phosphorus (P) concentration in grains was non-significant over control. This treatment also improved soil biological attributes in terms of the bacterial population up to 60%, microbial biomass carbon up to 22%, soil organic carbon up to 29%, and saturation percentage of soil up to 14% as compared to control. It can be concluded that the application of organic amendments improved establishment of introduced bacteria, which could be effective in improving maize growth and yield as well as soil health.

scholarly journals The effects of soil moisture and salinity as functions of groundwater depth on wheat growth and yield in coastal saline soils

2019 ◽  
Vol 18 (11) ◽  
pp. 2472-2482 ◽  
Author(s):  
He ZHANG ◽  
Yan LI ◽  
Ya-li MENG ◽  
Nan CAO ◽  
Duan-sheng LI ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Groundwater Depth ◽  
Growth And Yield ◽  
Saline Soils ◽  
Wheat Growth

Effect of rhizobacteria and cytokinins application on wheat growth and yield under normal vs drought conditions

2019 ◽  
Vol 50 (20) ◽  
pp. 2521-2533 ◽  
Author(s):  
Muhammad Saqlain Zaheer ◽  
Muhammad Aown Sammar Raza ◽  
Muhammad Farrukh Saleem ◽  
Kehinde O. Erinle ◽  
Rashid Iqbal ◽  
...  
Keyword(s):  
Growth And Yield ◽  
Wheat Growth ◽  
Drought Conditions

Lupin as a biological plough: evidence for, and effects on wheat growth and yield

1989 ◽  
Vol 29 (1) ◽  
pp. 99 ◽  
Author(s):  
CWL Henderson
Keyword(s):  
Nitrogen Fixation ◽  
Soil Water ◽  
Plant Density ◽  
Crop Rotations ◽  
Growth And Yield ◽  
Wheat Crop ◽  
Sand Soil ◽  
Wheat Growth ◽  
Residual N ◽  
Plant Densities

The effects of the density of lupin (Lupinus angustifolius L. cv. Illyarrie) taproots on a following wheat crop (Tritium aestivum L. cv. Gutha) were investigated on a compacted, earthy sand soil near Geraldton, Western Australia. In 1985, plots were sown to lupins at densities ranging from 35 to 220 plants m-2. Because peak lupin biomass varied by less than 25%, and 100 kg N ha-1 of mineral fertiliser was supplied to the wheat, the effects of variation in residual N from the lupins were considered to be minimal. In 1986, all plots were split for shallow or deep tillage and wheat sown. There were no effects of tillage or lupin density on stored soil water at sowing. Growth and yield of wheat on the shallow tilled plots increased linearly with lupin plant density in the previous year, to equal or better wheat yields on the deep tilled plots, which were unaffected by lupin density. At normal farm lupin plant densities, the biological plough effect was estimated to improve wheat yields by 100 kg ha-1, substantially less than the benefits from nitrogen fixation and breaks in disease cycles. Nevertheless, it still suggests that lupin stand densities should be maintained or increased in crop rotations on compacted sands.

Effect of foliar application of seaweed saps on chemical soil quality, growth and yield of black gram

2017 ◽  
Vol 8 (3) ◽  
pp. 313
Author(s):  
Mohd Yaseen ◽  
KP Raverkar ◽  
Navneet Pareek ◽  
Ramesh Chandra ◽  
ST Zodape ◽  
...  
Keyword(s):  
Soil Quality ◽  
Foliar Application ◽  
Growth And Yield ◽  
Black Gram ◽  
Chemical Soil

scholarly journals Crop response to soils amended with biochar: expected benefits and unintended risks

2017 ◽  
Vol 11 ◽  
Author(s):  
Raghunath Subedi ◽  
Chiara Bertora ◽  
Laura Zavattaro ◽  
Carlo Grignani
Keyword(s):  
Soil Quality ◽  
Crop Yield ◽  
Crop Yields ◽  
Soil Health ◽  
Crop Growth ◽  
Plant Diseases ◽  
Growth And Yield ◽  
Yield Response ◽  
Small Scale ◽  
Positive Effects

Biochar (BC) from biomass waste pyrolysis has been widely studied due to its ability to increase carbon (C) sequestration, reduce greenhouse gas (GHG) emissions, and enhance both crop growth and soil quality. This review summarizes the current knowledge of BC production, characterization, and types, with a focus on its positive effects on crop yield and soil properties versus the unintended risks associated with these effects. Biochar-amended soils enhance crop growth and yield via several mechanisms: expanded plant nutrient and water availability through increased use efficiencies, improved soil quality, and suppression of soil and plant diseases. Yield response to BC has been shown to be more evident in acidic and sandy soils than in alkaline and fine-textured soils. Biochar composition and properties vary considerably with feedstock and pyrolysis conditions so much that its concentrations of toxic compounds and heavy metals can negatively impact crop and soil health. Consequently, more small-scale and greenhouse-sited studies are in process to investigate the role of BC/soil/crop types on crop growth, and the mechanisms by which they influence crop yield. Similarly, a need exists for long-term, field-scale studies on the effects (beneficial and harmful) of BC amendment on soil health and crop yields, so that production guidelines and quality standards may be developed for BCs derived from a range of feedstocks.

scholarly journals Biochar and/or Compost Applications Improve Soil Properties, Growth, and Yield of Maize Grown in Acidic Rainforest and Coastal Savannah Soils in Ghana

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Albert Kobina Mensah ◽  
Kwame Agyei Frimpong
Keyword(s):  
Soil Quality ◽  
Maize Yield ◽  
Exchange Capacity ◽  
Growth And Yield ◽  
Available Phosphorus ◽  
Exchangeable Acidity ◽  
Combined Application ◽  
Agroecological Zones ◽  
Soil Fertility Improvement ◽  
Increase Crop Yield

Use of biochar for soil fertility improvement is gaining popularity due to its potential to improve soil quality, increase crop yield, and sequester carbon from the atmosphere-biosphere pool into the soil. A 40-day pot experiment was carried out to investigate the effects of corncob biochar and compost applied alone (at a rate of 2%, w/w) or in combination (1% of each, thus 1% compost + 1% biochar) on soil physicochemical properties, growth, and yield of maize on two soils of contrasting pH and texture collected from the Rainforest and Coastal Savannah agroecological zones of Ghana. Biochar and compost applied alone or in combination significantly increased soil pH, total organic carbon, available phosphorus, mineral nitrogen, reduced exchangeable acidity, and increased effective cation exchange capacity in both soils. Additionally, combined application and single application biochar or compost additions increased the plant height, stem girth, and dry matter yields of two maize (local (“ewifompe”) and hybrid (Obaatanpa)) varieties used in the study. The study showed that biochar applied alone or in combination with compost offers the potential to enhance soil quality and improve maize yield.

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