The effect of rainfall characteristics and tillage on sheet erosion and maize grain yield in Semiarid conditions and granitic sandy soils of Zimbabwe
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Hindawi Publishing Corporation
2016
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| Online Access: | http://www.hindawi.com/journals/aess/2012/243815/ http://hdl.handle.net/11408/1714 |
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| author | Munodawafa, Adelaide |
| author_facet | Munodawafa, Adelaide |
| author_sort | Munodawafa, Adelaide |
| collection | DSpace |
| description | Fulltext |
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| id | ir-11408-1714 |
| institution | My University |
| language | English |
| publishDate | 2016 |
| publisher | Hindawi Publishing Corporation |
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| spelling | ir-11408-17142022-06-27T13:49:06Z The effect of rainfall characteristics and tillage on sheet erosion and maize grain yield in Semiarid conditions and granitic sandy soils of Zimbabwe Munodawafa, Adelaide Rainfall characteristics, Tillage, Maize grain yield, Granitic sandy soils, semi arid Fulltext In semiarid regions, rainfall is one of the primary factors affecting soil erosion and crop production under rain-fed agriculture. The study sought to quantify the effect of rainfall characteristics on sheet erosion and maize grain yield under different tillage systems. It was carried out under semiarid conditions and infertile sandy soils of Zimbabwe. Rainfall amount and intensity were recorded every 24 hours, while sheet erosion was measured from four tillage systems (Conventional Tillage (CT), Mulch Ripping (MR), Tied Ridging (TR) and Bare Fallow (BF)). Maize (Zea mays L.) was grown on three tillage systems (CT, MR, and TR). Rainfall amount varied significantly (P < 0.001) between seasons (164–994 mm). CT recorded the highest average soil losses (15 t/ha), while MR and TR recorded 1.3 and 1.2 t/ha, respectively. Maize grain yields increased with increasing seasonal rainfall giving yield-responses of 0.9 t/ha (TR) to 1.3 t/ha (MR) for every 100 mm rainfall increment. Overall, treatments did not differ significantly (P < 0.497), except during drier seasons (P < 0.025). Regression equations showed that yields can be confidently predicted using rainfall amount and time, with R2 values of 0.82 to 0.94. Maize grain yields proved to be mostly dependent on rainfall amount than fertility. The productivity of the soils decreased with increased length of cultivation. 2016-07-22T10:23:38Z 2016-07-22T10:23:38Z 2012 Article 1687-7667 http://www.hindawi.com/journals/aess/2012/243815/ http://hdl.handle.net/11408/1714 en Applied and Environmental Soil Science; open Hindawi Publishing Corporation |
| spellingShingle | Rainfall characteristics, Tillage, Maize grain yield, Granitic sandy soils, semi arid Munodawafa, Adelaide The effect of rainfall characteristics and tillage on sheet erosion and maize grain yield in Semiarid conditions and granitic sandy soils of Zimbabwe |
| title | The effect of rainfall characteristics and tillage on sheet erosion and maize grain yield in Semiarid conditions and granitic sandy soils of Zimbabwe |
| title_full | The effect of rainfall characteristics and tillage on sheet erosion and maize grain yield in Semiarid conditions and granitic sandy soils of Zimbabwe |
| title_fullStr | The effect of rainfall characteristics and tillage on sheet erosion and maize grain yield in Semiarid conditions and granitic sandy soils of Zimbabwe |
| title_full_unstemmed | The effect of rainfall characteristics and tillage on sheet erosion and maize grain yield in Semiarid conditions and granitic sandy soils of Zimbabwe |
| title_short | The effect of rainfall characteristics and tillage on sheet erosion and maize grain yield in Semiarid conditions and granitic sandy soils of Zimbabwe |
| title_sort | effect of rainfall characteristics and tillage on sheet erosion and maize grain yield in semiarid conditions and granitic sandy soils of zimbabwe |
| topic | Rainfall characteristics, Tillage, Maize grain yield, Granitic sandy soils, semi arid |
| url | http://www.hindawi.com/journals/aess/2012/243815/ http://hdl.handle.net/11408/1714 |
| work_keys_str_mv | AT munodawafaadelaide theeffectofrainfallcharacteristicsandtillageonsheeterosionandmaizegrainyieldinsemiaridconditionsandgraniticsandysoilsofzimbabwe AT munodawafaadelaide effectofrainfallcharacteristicsandtillageonsheeterosionandmaizegrainyieldinsemiaridconditionsandgraniticsandysoilsofzimbabwe |