Abstract
Sandy desert soil in Sudan are characterised by low content of organic matter, small water holding capacity and low crop productivity. Methods to enhance crop productivity on these environments, such as land application of composts, are of great importance. Field experiments were conducted on a sandy soil to determine the effects of two types of composted manures on growth and yield of two sorghum varieties grown under rainfed conditions. Two sorghum cultivars (Butana and Arfa Gadmak were sown under chicken manure (CM) compost (5 t ha-1), CM compost with NPK (36 kg ha-1), farm manure (FM) compost (20 t ha-1), FM compost with NPK (36 kg ha-1), CM compost with FM compost (1:1, wt/wt, 12.5 t ha-1), CM and FM composts with NPK (36 kg ha-1), only NPK (36 kg ha-1) and control (no composts or NPK). Application of composts increased organic soil carbon by 50% and available phosphorous (P) between 43 to 105%, whereas, pH and bulk density were decreased by 2 and 6%, respectively. Soil moisture contents in compost treated plots were 56–98% higher than control plots. Mixing compost with NPK increased leaf area index over NPK alone by 28% but the highest values were found in plots treated with chicken compost or integrated with NPK compared to NPK application alone. Incorporation of compost increased dry matter yield compared to control by 17–53% and increased grain yield by 1.8 to 3.1 fold in both sorghum varieties. Grain yield from plots treated with NPK, sole chicken compost or combined with NPK were similar for both varieties in both seasons. In general, the trend of grain yield of sorghum was in the order of NPK = chicken compost with NPK = chicken compost = farm manure compost with NPK mixed compost with NPK = farm manure control. In conclusion, integrating composts with NPK improved fertility of sandy soils, sorghum growth and yield. © 2020 Friends Science Publishers
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Claims 10
Claim · model-written summary
Application of composts increased soil organic carbon by 50%.
Not reportedTaxonComparator
Verbatim
e1“Application of composts increased organic soil carbon by 50%”
Claim · model-written summary
Application of composts increased available phosphorus by 43 to 105%.
- Treatment
- Application of compostse2
- Outcome
- available phosphorous (P)e2
- Direction
- increasede2
- Value
- 43 to 105%e2
Not reportedTaxonComparator
Verbatim
e2“Application of composts increased organic soil carbon by 50% and available phosphorous (P) between 43 to 105%”
Claim · model-written summary
Compost application decreased soil pH by 2.
Not reportedTaxon
Verbatim
e3“pH and bulk density were decreased by 2 and 6%”
Claim · model-written summary
Compost application decreased bulk density by 6%.
Not reportedTaxon
Verbatim
e3“pH and bulk density were decreased by 2 and 6%”
Claim · model-written summary
Soil moisture in compost-treated plots was 56-98% higher than in control plots.
- Treatment
- compost treated plotse4
- Outcome
- Soil moisture contentse4
- Direction
- highere4
- Value
- 56–98%e4
- Comparator
- control plotse4
Not reportedTaxon
Verbatim
e4“Soil moisture contents in compost treated plots were 56–98% higher than control plots”
Claim · model-written summary
Mixing compost with NPK increased sorghum leaf area index over NPK alone by 28%.
- Treatment
- Mixing compost with NPKe5
- Outcome
- leaf area indexe5
- Direction
- increasede5
- Value
- 28%e5
- Comparator
- NPK alonee5
SorghumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Mixing compost with NPK increased leaf area index over NPK alone by 28%”
t0“Yield of Sorghum”
Claim · model-written summary
Leaf area index of sorghum was highest in plots with chicken compost or compost integrated with NPK compared with NPK alone.
- Treatment
- chicken compost or integrated with NPKe6
- Outcome
- leaf area indexe6
- Direction
- higheste6
- Comparator
- NPK application alonee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Mixing compost with NPK increased leaf area index over NPK alone by 28% but the highest values were found in plots treated with chicken compost or integrated with NPK compared to NPK application alone”
t0“Yield of Sorghum”
Claim · model-written summary
Compost incorporation increased sorghum dry matter yield over control by 17-53%.
- Treatment
- Incorporation of composte7
- Outcome
- dry matter yielde7
- Direction
- increasede7
- Value
- 17–53%e7
- Comparator
- controle7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Incorporation of compost increased dry matter yield compared to control by 17–53%”
t0“Yield of Sorghum”
Claim · model-written summary
Compost incorporation increased sorghum grain yield 1.8 to 3.1 fold over control in both varieties.
- Treatment
- Incorporation of composte7
- Outcome
- grain yielde7
- Direction
- increasede7
- Value
- 1.8 to 3.1 folde7
- Comparator
- controle7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Incorporation of compost increased dry matter yield compared to control by 17–53% and increased grain yield by 1.8 to 3.1 fold in both sorghum varieties”
Claim · model-written summary
Grain yield from NPK, sole chicken compost or chicken compost with NPK was similar for both varieties in both seasons.
- Treatment
- NPK, sole chicken compost or combined with NPKe0
- Outcome
- Grain yielde0
- Direction
- similare0
- Setting
- both seasonse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain yield from plots treated with NPK, sole chicken compost or combined with NPK were similar for both varieties in both seasons”
t0“Yield of Sorghum”
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