Soil management strategies enhanced crop yield, soil moisture, and water productivity in Nitisols of the Upper Eastern Kenya

Low soil moisture and declining crop yield caused by erratic rainfall, and poor soil management practises contribute to the continuous decrease in water productivity. We sought to assess the effects of the selected soil management strategies on crop yield, soil moisture, and water productivity in th...

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Autores principales:	Nathan Oduor, Milka N. Kiboi, Anne Muriuki, Noah Adamtey, Collins M. Musafiri, Felix K. Ngetich
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Soil quality Moisture stress Maize-legume intercrop Crop yield Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/f3c1a63a0a1741db9d85b194105e4215
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spelling	oai:doaj.org-article:f3c1a63a0a1741db9d85b194105e42152021-11-20T05:15:42ZSoil management strategies enhanced crop yield, soil moisture, and water productivity in Nitisols of the Upper Eastern Kenya2667-010010.1016/j.envc.2021.100375https://doaj.org/article/f3c1a63a0a1741db9d85b194105e42152021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2667010021003498https://doaj.org/toc/2667-0100Low soil moisture and declining crop yield caused by erratic rainfall, and poor soil management practises contribute to the continuous decrease in water productivity. We sought to assess the effects of the selected soil management strategies on crop yield, soil moisture, and water productivity in the Nitisols. We carried out the study in Chuka, Tharaka-Nithi County, and Kandara, Murang'a County. The experiment was laid in a split-plot design. Minimum and conventional tillage were the main treatments, while soil fertility inputs were the sub-treatments. The soil fertility inputs included sole mineral fertilizer, mineral fertilizer plus animal manure, mineral fertilizer plus crop residue, Tithonia diversifolia plus phosphate rock (Minjingu), sole animal manure intercropped with Dolichos Lablab L.. Maize grain, stover yield, soil moisture, and water productivity significantly increased by 6–22, 10, and 31–33% under conventional tillage than minimum tillage. Mineral fertilizer with or without organic inputs and with or without crop residue mulch significantly (p>0.0002) enhanced maize grain yield by 96 – 729% and stover yield by 79 -276% compared to the control in the two sites during the experimental period. Soil fertility inputs significantly increased soil moisture at 0–20 cm depth at the Chuka site by 10 - 40%. Water productivity was significantly (p > 0.0001) improved under mineral fertilizer with or without organic inputs and with or without crop residue mulch by 46 - 279% in both sites. Generally, the combination of organic and inorganic resources plus crop residue mulch enhanced soil water productivity irrespective of the tillage method. Their use should be encouraged for improved water productivity. However, tillage effects on crop yield, soil moisture, and water productivity should be investigated under long-term conditions.Nathan OduorMilka N. KiboiAnne MuriukiNoah AdamteyCollins M. MusafiriFelix K. NgetichElsevierarticleSoil qualityMoisture stressMaize-legume intercropCrop yieldEnvironmental sciencesGE1-350ENEnvironmental Challenges, Vol 5, Iss , Pp 100375- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Soil quality Moisture stress Maize-legume intercrop Crop yield Environmental sciences GE1-350
spellingShingle	Soil quality Moisture stress Maize-legume intercrop Crop yield Environmental sciences GE1-350 Nathan Oduor Milka N. Kiboi Anne Muriuki Noah Adamtey Collins M. Musafiri Felix K. Ngetich Soil management strategies enhanced crop yield, soil moisture, and water productivity in Nitisols of the Upper Eastern Kenya
description	Low soil moisture and declining crop yield caused by erratic rainfall, and poor soil management practises contribute to the continuous decrease in water productivity. We sought to assess the effects of the selected soil management strategies on crop yield, soil moisture, and water productivity in the Nitisols. We carried out the study in Chuka, Tharaka-Nithi County, and Kandara, Murang'a County. The experiment was laid in a split-plot design. Minimum and conventional tillage were the main treatments, while soil fertility inputs were the sub-treatments. The soil fertility inputs included sole mineral fertilizer, mineral fertilizer plus animal manure, mineral fertilizer plus crop residue, Tithonia diversifolia plus phosphate rock (Minjingu), sole animal manure intercropped with Dolichos Lablab L.. Maize grain, stover yield, soil moisture, and water productivity significantly increased by 6–22, 10, and 31–33% under conventional tillage than minimum tillage. Mineral fertilizer with or without organic inputs and with or without crop residue mulch significantly (p>0.0002) enhanced maize grain yield by 96 – 729% and stover yield by 79 -276% compared to the control in the two sites during the experimental period. Soil fertility inputs significantly increased soil moisture at 0–20 cm depth at the Chuka site by 10 - 40%. Water productivity was significantly (p > 0.0001) improved under mineral fertilizer with or without organic inputs and with or without crop residue mulch by 46 - 279% in both sites. Generally, the combination of organic and inorganic resources plus crop residue mulch enhanced soil water productivity irrespective of the tillage method. Their use should be encouraged for improved water productivity. However, tillage effects on crop yield, soil moisture, and water productivity should be investigated under long-term conditions.
format	article
author	Nathan Oduor Milka N. Kiboi Anne Muriuki Noah Adamtey Collins M. Musafiri Felix K. Ngetich
author_facet	Nathan Oduor Milka N. Kiboi Anne Muriuki Noah Adamtey Collins M. Musafiri Felix K. Ngetich
author_sort	Nathan Oduor
title	Soil management strategies enhanced crop yield, soil moisture, and water productivity in Nitisols of the Upper Eastern Kenya
title_short	Soil management strategies enhanced crop yield, soil moisture, and water productivity in Nitisols of the Upper Eastern Kenya
title_full	Soil management strategies enhanced crop yield, soil moisture, and water productivity in Nitisols of the Upper Eastern Kenya
title_fullStr	Soil management strategies enhanced crop yield, soil moisture, and water productivity in Nitisols of the Upper Eastern Kenya
title_full_unstemmed	Soil management strategies enhanced crop yield, soil moisture, and water productivity in Nitisols of the Upper Eastern Kenya
title_sort	soil management strategies enhanced crop yield, soil moisture, and water productivity in nitisols of the upper eastern kenya
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/f3c1a63a0a1741db9d85b194105e4215
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Soil management strategies enhanced crop yield, soil moisture, and water productivity in Nitisols of the Upper Eastern Kenya

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