IN-SITU WATER HARVESTING TECHNOLOGIES AND FERTILIZER RATES INCREASE MAIZE AND BEAN YIELDS IN THE SEMI-ARID KATUMANI, KENYA

Kelvin Mukhebi Wafula, Nancy Karanja, George N. Karuku, Anthony O. Esilaba

Abstract


Background: Crop production in the arid and semi-arid lands (ASALs) is constrained by erratic rainfall and poor soil fertility. Therefore, climate smart agriculture mechanisms such as in-situ rainwater harvesting technologies and recommended fertilizer rates would be vital for ensuring food security. Objective: To evaluate selected in-situ water harvesting technologies and fertilizer rates on soil water content and yield of maize and beans at KALRO Katumani Research Center in Machakos County, Kenya during the 2019 and 2020 short and long rain seasons, respectively. Methodology: The experiment was established in a randomized complete block design with a split-split plot arrangement, replicated three times, with in-situ water harvesting technologies comprising of zai pits, ngolo pits, contour furrows and conventional tillage, as the main plots, whereas the split plots were varying rates of fertilizer inputs: Di-ammonium phosphate (DAP), goat manure and control. The split-split plots comprised of maize and beans cropping systems. Soil moisture content was assessed at 4, 8, 12 and 16 weeks after emergence, whilst nutrient uptake, use efficiency and crop yields at physiological maturity. Data was subjected to analysis of variance. Results: Soil moisture, maize and beans yields, nutrient uptake and use efficiency were significantly (p ≤ 0.05) increased by in-situ water harvesting technologies and fertilizer inputs. Highest soil moisture content was recorded under zai and ngolo pits and lowest in conventional tillage treatments. Ngolo pits recorded higher maize and beans grain yield. Application of DAP fertilizer increased maize and beans grain yield compared to control. Intercropping maize and beans increased grain yield significantly (p ≤ 0.05) compared to sole maize and sole beans. Implications. There is need for promoting a combination of in-situ rainwater harvesting technologies especially ngolo and zai pits with application of DAP+ manure in semi-arid areas where water is scarce coupled with poor soil fertility. Conclusion: Ngolo and zai pits increased soil water retention capacity while application of DAP fertilizer led to increased crop yield and the study therefore recommends their adoption within the study area and extrapolation to areas of similar conditions. 

Keywords


in-situ water harvesting; ngolo pits; zai pits; nutrients uptake; use efficiency

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REFERENCES

Abideen, Z.U., 2014. Comparison of crop water requirements of maize varieties under irrigated condition in semi-arid environment. Journal of Environment and Earth Science. 4(9), pp.1-3. https://www.iiste.org/Journals/index.php/JEES/article/view/11836

Abubaker, B.M.A., En, Y.S., Cheng, S.G. and Alhadi, M., 2014. Impact of different water harvesting techniques on soil moisture content and yield components of sorghum. Pakistan Journal of Agricultural Sciences, 51(779.788). ‘https://www.scholarmate.com/A/Ropd5K.

Ademba, J.S., Kwach, J.K., Ngari, S.M., Esilaba, A.O. and Kidula, N.L., 2014. Evaluation of organic and inorganic amendments on nutrient uptake, phosphorus use efficiency and yield of maize in Kisii County, Kenya. African Journal of Agricultural Research, 9(20), pp.1571-1578. DOI:10.5897/AJAR2012.709.

Admasu, R., Tadesse, M. and Shimbir, T., 2018. Effect of Growth Stage Moisture Stress on Maize (Zea mays) Yield and Water Use Efficiency. Irrigation and Watershed Management. https://www.researchgate.net/publication/354698573.

Amede, T., Menza, M. and Awlachew, S.B., 2011. Zai improves nutrient and water productivity in the Ethiopian highlands. Experimental Agriculture, 47(S1), pp.7-20. DOI: https://doi.org/10.1017/S0014479710000803

Ampofo, E.A., 2006. Soil moisture dynamics in coastal savanna soils in the tropics under different soil management practices. Hydrological Sciences Journal, 51(6), pp.1194-1202. https://doi.org/10.1623/hysj.51.6.1194

Aziz, T., Ullah, S., Sattar, A., Nasim, M., Farooq, M. and Khan, M.M., 2010. Nutrient availability and maize (Zea mays) growth in soil amended with organic manures. International Journal of Agriculture and Biology. 12(4), pp.621-624. 10–070/RAS/2010/12–4–621–624.

Bationo, A., Fairhurst, T., Giller, K. E., Kelly, V., Lunduka, R., Mando, A., and Zingore, S. 2012. Africa Soil Health Consortium: Hand book for Integrated Soil Fertility Management. CAB International. ISBN (e-book), 978(1), 78064. https://publications.cta.int/media/publications/downloads/1853_PDF.pdf

Bayala, J., Sileshi, G.W., Coe, R., Kalinganire, A., Tchoundjeu, Z., Sinclair, F. and Garrity, D., 2012. Cereal yield response to conservation agriculture practices in drylands of West Africa: a quantitative synthesis. Journal of Arid Environments, 78, pp.13-25. https://doi.org/10.1016/j.jaridenv.2011.10.011

Belel, M.D., Halim, R.A., Rafii, M.Y. and Saud, H.M., 2014. Intercropping of corn with some selected legumes for improved forage production: A review. Journal of Agricultural Science, 6(3), p.48. DOI:10.5539/jas.v6n3p48.

Bennett, J.A. and Klironomos, J., 2019. Mechanisms of plant–soil feedback: interactions among biotic and abiotic drivers. New Phytologist, 222(1), pp.91-96. https://doi.org/10.1111/nph.15603.

Biazin, B., Sterk, G., Temesgen, M., Abdulkedir, A. and Stroosnijder, L., 2012. Rainwater harvesting and management in rainfed agricultural systems in sub-Saharan Africa–a review. Physics and Chemistry of the Earth, Parts A/B/C, 47, pp.139-151. http://dx.doi.org/10.1016/j.pce.2011.08.015.

Brentrup, F. and Pallière, C., 2010, March. Nitrogen use efficiency as an agro-environmental indicator. In Proceedings of the OECD Workshop on Agri-environmental Indicators, March (pp. 23-26). https://www.researchgate.net/publication/312595805_

Buhk, C., Alt, M., Steinbauer, M.J., Beierkuhnlein, C., Warren, S.D. and Jentsch, A., 2017. Homogenizing and diversifying effects of intensive agricultural land-use on plant species beta diversity in Central Europe: A call to adapt our conservation measures. Science of the Total Environment, 576, pp.225-233. https://doi.org/10.1016/j.agwat.2020.106434.

Chaudhari, P.R., Ahire, D.V., Ahire, V.D., Chkravarty, M. and Maity, S., 2013. Soil bulk density as related to soil texture, organic matter content and available total nutrients of Coimbatore soil. International Journal of Scientific and Research Publications, 3(2), pp.1-8. www.ijsrp.org.

Cofie, O. and Amede, T., 2015. Water management for sustainable agricultural intensification and smallholder resilience in sub-Saharan Africa. Water Resources and Rural Development, 6, pp.3-11. https://doi.org/10.1016/j.wrr.2015.10.001.

Dile, Y.T., Karlberg, L., Temesgen, M. and Rockström, J., 2013. The role of water harvesting to achieve sustainable agricultural intensification and resilience against water related shocks in sub-Saharan Africa. Agriculture, Ecosystems & Environment, 181, pp.69-79. https://dx.doi.org/10.1016/j.agee.2013.09.014.

Dougbedji, F., 2002. Organic amendment decomposition, nutrient release and nutrient uptake by millet (Pennisetum glaucum (L.) R. Br.) in a traditional land rehabilitation technique (zai) in the Sahel (Vol. 1). Cuvillier Verlag.

Emam, Y., Shekoofa, A., Salehi, F. and Jalali, A.H., 2010. Water stress effects on two common bean cultivars with contrasting growth habits. American-Eurasian Journal of Agricultural & Environmental Sciences, 9(5), pp.495-499. DOI:10.1080/03650340.2010.530256.

Esilaba, A.O., Njiru, E., Ruto, R., Omondi, S.P., Kwena, K.M., Thuranira, E.G., Mwangi, J.A. and Simiyu, A.W., 2020. Enhancing Soil Productivity and Water and Nutrient Use Efficiencies in Integrated Cropping-Livestock Production Systems in Kenya. IAEA Tecdoc Series, p.56. https://www-pub.iaea.org/MTCD/Publications/PDF/TE-1924web.pdf.

Fairhurst, T., 2012. Handbook for integrated soil fertility management. CTA/CABI.

FAO. 2012. Crop Evapotranspiration (Guidelines for computing crop water requirement). Irrigation and Drainage. 56:163

Farias, V.D.D.S., Lima, M.J.A.D., Nunes, H.G.G.C., Sousa, D.D.P. and Souza, P.J.D.O.P., 2017. Water Demand, Crop Coefficient and Uncoupling Factor of Cowpea in The Eastern Amazon1. Revista Caatinga, 30, pp.190-200. https://www.redalyc.org/pdf/2371/237148569021.pdf

Fatondji, D., Martius, C., Bielders, C.L., Vlek, P.L., Bationo, A. and Gerard, B., 2006. Effect of planting technique and amendment type on pearl millet yield, nutrient uptake, and water use on degraded land in Niger. Nutrient Cycling in Agroecosystems, 76(2), pp.203-217. https://link.springer.com/article/10.1007/s10705-005-6209-9

Gebreegziabher, T., Nyssen, J., Govaerts, B., Getnet, F., Behailu, M., Haile, M. and Deckers, J., 2009. Contour furrows for in situ soil and water conservation, Tigray, Northern Ethiopia. Soil and Tillage Research, 103(2), pp.257-264. DOI:10.1016/j.still.2008.05.021

Gicheru, P.T. and Ita, B.N., 1987. Detailed soil survey of the Katumani National Dryland Farming Research Station Farms (Machakos District). Republic of Kenya, Ministry of Agriculture, National Agricultural Laboratories, Kenya Soil Survey. https://books.google.co.ke/books/about/Detailed_Soil_Survey_of_the_Katumani_Nat.html?id=GnoiHAAACAAJ&redir_esc=y

Gikonyo N.W., Busienei, J.R., Gathiaka, J.K; Karuku, G.N. 2022. Analysis of Household savings and adoption of climate Smart Agricultural Technologies. Evidence from smallholder farmers in Nyando Basin, Kenya. Heliyon vol. 8. https://doi.org/10.1016/j.heliyon.2022.e09692. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/bync-nd/4.0/).

Haile, D., Nigussie, D. and Ayana, A., 2012. Nitrogen use efficiency of bread wheat: Effects of nitrogen rate and time of application. Journal of Soil Science and Plant Nutrition, 12(3), pp.389-410. http://dx.doi.org/10.4067/S0718-95162012005000002

Hauggaard-Nielsen, H., Jørnsgaard, B., Kinane, J. and Jensen, E.S., 2008. Grain legume–cereal intercropping: The practical application of diversity, competition and facilitation in arable and organic cropping systems. Renewable Agriculture and Food Systems, 23(1), pp.3-12. http://dx.doi.org/10.1017/s1742170507002025.

Ibrahim, A.A., Ati, F.Q. and Adebayo, A.A., 2011. Effect of climate on the growth and yield of sorghum (sorghum bicolor) in Wailo, Ganjuwa local government area, Bauchi state. Research Journal of Environmental and Earth Sciences, 3(5), pp.469-472. https://www.academia.edu/40372007

Jaetzold, R., 2010. Farm Management Handbook of Kenya: Volume II: Natural Conditions and Farm Management Information; Annex: Atlas of Agro-Ecological Zones, Soils and Fertilising by Group of Districts; Subpart A2: Nyanza Province Homa Bay and Migori County. https://d-nb.info/109742894X/34

Jones, C., Olson-Rutz, K. and Dinkins, C., 2011. Nutrient uptake timing by crops. Montana, USA: Montana State University.

Karuku G. N. 2018. Soil and Water Conservation Measures and Challenges in Kenya; a Review. International Journal of Agronomy and Agricultural Research. Vol. 12, No. 6, p. 116-145. Published on 30thJune, 2018. ISSN: 2223-7054 (Print) 2225-3610 (Online). http://www.innspub.net.

Karuku, G.N. and Mochoge, B.O., 2018. Nitrogen mineralization potential (No) in three Kenyan soils, nitisols, ferralsols and luvisols. Journal of Agricultural Science; Vol. 10, No. 4; 201. DOI:10.5539/jas.v10n4p69.

Karuma, A., Mtakwa, P., Amuri, N., Gachene, C.K. and Gicheru, P., 2014. Enhancing soil water content for increased food production in semi-arid areas of Kenya results from an on-farm trial in Mwala district, Kenya. Journal of Agricultural Science; Vol. 6, No. 4; 2014. URL: http://dx.doi.org/10.5539/jas.v6n4p125.

Kathuli, P. and Itabari, J.K., 2015. In situ soil moisture conservation: Utilization and management of rainwater for crop production. In Adapting African Agriculture to Climate Change (pp. 127-142). Springer, Cham. DOI:10.1007/978-3-319-13000-2_11.

Kato, M., 2001. Intensive cultivation and environment use among the Matengo in Tanzania. African Study Monographs, 22(2), pp.73-92. https://doi.org/10.14989/68204.

Khondaker, Z.H., Khan, T.H., Rahman, S. and Islam, A., 2013. Effect of soil moisture stress on the availability and uptake of N, P and K by wheat plants and growth, yield and quality of wheat [in Bangladesh]. Bangladesh Journal of Soil Science (Bangladesh). https://agris.fao.org/agris-search/search.do?recordID=BD8625190

Kugedera, A.T., Kokerai, L.K. and Chimbwanda, F., 2018. Effects of in-situ rainwater harvesting and integrated nutrient management options on Sorghum production. International Journal of Agriculture, Environment and Food Sciences. DOI:10.31015/jaefs.2020.3.9.

Kwena, K.M., Ayuke, F.O., Karuku, G.N. and Esilaba, A.O., 2018. No rain but bumper harvest: the magic of pigeon pea in semi-arid Kenya. International Journal of Agricultural Resources, Governance and Ecology, 14(2), pp.181-203. DOI:10.1504/IJARGE.2018.10015157.

Landon, J.R., 2014. Booker tropical soil manual: a handbook for soil survey and agricultural land evaluation in the tropics and subtropics. Routledge. https://doi.org/10.4324/9781315846842 .

Li, S.X., Wang, Z.H., Malhi, S.S., Li, S.Q., Gao, Y.J. and Tian, X.H., 2009. Nutrient and water management effects on crop production, and nutrient and water use efficiency in dryland areas of China. Advances in agronomy, 102, pp.223-265. DOI: 10.1016/S0065-2113(09)01007-4.

Liu, X., Fan, Y., Long, J., Wei, R., Kjelgren, R., Gong, C. and Zhao, J., 2013. Effects of soil water and nitrogen availability on photosynthesis and water use efficiency of Robinia pseudoacacia seedlings. Journal of Environmental Sciences, 25(3), pp.585-595. https://doi.org/10.1016/S1001-0742(12)60081-3

Malesu, M.M., 2006. Rainwater harvesting innovations in response to water scarcity: The Lare experience (No. 5). World Agroforestry Centre. https://agris.fao.org/agris-search/search.do?recordID=SO2007100028

Malley, Z.J.U., Kayombo, B., Willcocks, T.J. and Mtakwa, P.W., 2004. Ngoro: an indigenous, sustainable and profitable soil, water and nutrient conservation system in Tanzania for sloping land. Soil and Tillage Research, 77(1), pp.47-58. DOI:10.1016/j.still.2003.10.003

Malo, M. and Ghosh, A., 2018. Studies on different agrometeorological indices and thermal use efficiencies of rice in New Alluvial Zone of West Bengal. Bulletin on Environmental Pharmacology and Life Sciences, 7(6), pp.72-78.

Mbayaki, C.W. and George N. Karuku, G.N. 2021a. Growth and Yield of Sweet Potato (Ipomoea Batatas L.) Monocrops Versus Intercrops in the Semi-Arid Katumani, Kenya. Tropical and Subtropical Agroecosystems 24(3). ISSN: 1870-0462.

Mbayaki, C.W. and George N. Karuku, G.N. 2021b. Predicting impact of climate change on water requirements for directly sown rain-fed sweet potato in the semi-arid Katumani region, Kenya. Tropical and Subtropical Agroecosystems 24(2). ISSN: 1870-0462.

Mbayaki, C.W. and George N. Karuku, G.N. 2022. Soil hydraulic properties of a chromic Luvisol in Katumani, Kenya. Tropical and Subtropical Agroecosystems 25 (3) (2022): #094. Work licensed under a CC-BY 4.0 License. https://creativecommons.org/licenses/by/4.0/ ISSN: 1870-0462.

Mechiche-Alami, A. and Abdi, A.M., 2020. Agricultural productivity in relation to climate and cropland management in West Africa. Scientific reports, 10(1), pp.1-10. https://doi.org/10.1038/s41598-020-59943-y

Milkias, A., Tadesse, T. and Zeleke, H., 2018. Evaluating the effects of in-situ rainwater harvesting techniques on soil moisture conservation and grain yield of maize (Zea mays L.) in Fedis district, Eastern Hararghe, Ethiopia. Turkish Journal of Agriculture-Food Science and Technology, 6(9), pp.1129-1133. DOI:10.24925/turjaf.v 6i9.1129-1133.1839.

Miriti, J.M., Kironchi, G., Esilaba, A.O., Heng, L.K., Gachene, C.K.K. and Mwangi, D.M., 2012. Yield and water use efficiencies of maize and cowpea as affected by tillage and cropping systems in semi-arid Eastern Kenya. Agricultural Water Management, 115, pp.148-155. https://doi.org/10.1016/j.agwat.2012.09.002.

Mucheru-Muna, Monicah., Mugendi, Daniel., Pypers, Pieter, Mugwe, Jayne., Kung'u, J., Vanlauwe, Benard. and Merckx, R., 2014. Enhancing maize productivity and profitability using organic inputs and mineral fertilizer in central Kenya small-hold farms. Experimental Agriculture, 50(2), pp.250-269. DOI: https://doi.org/10.1017/S0014479713000525.

Mudatenguha, F., Anena, J., Kiptum, C.K. and Mashingaidze, A.B., 2014. In Situ Rain Water Harvesting Techniques Increase Maize Growth and Grain Yield in a Semi-Arid Agro-Ecology of Nyagatare Rwanda. International Journal of Agriculture and Biology, 16(5). https://www.researchgate.net/profile/Kiprotich-Kiptum/publication/263342543

Mutekwa, V.T., 2009. Climate change impacts and adaptation in the agricultural sector: The case of smallholder farmers in Zimbabwe. Journal of Sustainable Development in Africa, 11(2), pp.237-256. https://www.researchgate.net/publication/254951714

Mzezewa, J., Gwata, E.T. and Van Rensburg, L.D., 2011. Yield and seasonal water productivity of sunflower as affected by tillage and cropping systems under dryland conditions in the Limpopo Province of South Africa. Agricultural water management, 98(10), pp.1641-1648. https://doi.org/10.1016/j.agwat.2011.06.003.

Njeru, P.N.M., Mugwe, J., Maina, I., Mucheru-Muna, M., Mugendi, D., Lekasi, J.K., Kimani, S.K., Miriti, J., Oeba, V.O., Esilaba, A.O. and Mutuma, E., 2015. Integrating Farmers and Scientific Methods for Evaluating Climate Change Adaptation Options in Embu County. In Adapting African Agriculture to Climate Change (pp. 185-197). Springer, Cham. DOI:10.1007/978-3-319-13000-2.

Nkuna, T.R. and Odiyo, J.O., 2016. The relationship between temperature and rainfall variability in the Levubu sub-catchment, South Africa. International Journal of Education and Learning Systems, 1.

Nyamadzawo, G., Wuta, M., Nyamangara, J. and Gumbo, D., 2013. Opportunities for optimization of in-field water harvesting to cope with changing climate in semi-arid smallholder farming areas of Zimbabwe. SpringerPlus, 2(1), pp.1-9. DOI: 10.1186/2193-1801-2-100.

Nyang'au, J.O., Mohamed, J.H., Mango, N., Makate, C. and Wangeci, A.N., 2021. Smallholder farmers’ perception of climate change and adoption of climate smart agriculture practices in Masaba South Sub-County, Kisii, Kenya. Heliyon, 7(4), p.e06789. http://doi:10.1016/j.heliyon.2021.e06789.

Oo, A.N., Banterng, P., Polthanee, A. and Trelo-Ges, V., 2010. The effect of different fertilizers management strategies on growth and yield of upland black glutinous rice and soil property. Asian journal of plant sciences, 9(7), p.414. DOI: 10.3923/ajps.2010.414.422.

Osunbitan, J.A., Oyedele, D.J. and Adekalu, K.O., 2005. Tillage effects on bulk density, hydraulic conductivity and strength of a loamy sand soil in southwestern Nigeria. Soil and Tillage Research, 82(1), pp.57-64. https://doi.org/10.1016/j.still.2004.05.007.

Ouattara, K., Ouattara, B., Assa, A. and Sédogo, P.M., 2006. Long-term effect of ploughing, and organic matter input on soil moisture characteristics of a Ferric Lixisol in Burkina Faso. Soil and Tillage Research, 88(1-2), pp.217-224. https://agris.fao.org/agris-search/search.

Pasley, H.R., Cairns, J.E., Camberato, J.J. and Vyn, T.J., 2019. Nitrogen fertilizer rate increases plant uptake and soil availability of essential nutrients in continuous maize production in Kenya and Zimbabwe. Nutrient Cycling in Agroecosystems, 115(3), pp.373-389. https://doi.org/10.1007/s10705-019-10016-1.

Rani, P., Batra, V.K., Bhatia, A.K. and Sain, V., 2020. Effect of water deficit and fertigation on nutrients uptake and soil fertility of drip irrigated onion (Allium cepa L.) in semi-arid region of India. Journal of Plant Nutrition, 44(6), pp.765-772. https://doi.org/10.1080/01904167.2020.1860220.

Recha, J., Kinyangi, J. and Omondi, H., 2013. Climate related risk and opportunities for agricultural adaption and mitigation in semi-arid Eastern Kenya. CCAFS East Africa Program Project Report. (Copenhagen: CGIAR Research Program on Climate Change, Agriculture and Food Security).

Rezene, Y., Gebeyehu, S. and Zelleke, H., 2013. Morpho-physiological response to post-flowering drought stress in small red seeded common bean (Phaseolus vulgaris L.) genotypes. Journal of Plant Studies, 2(1), p.42. DOI:10.5539/jps.v2n1p42

Rockström, J. and Falkenmark, M., 2015. Agriculture: Increase water harvesting in Africa. Nature News, 519(7543), p.283. https://doi.org/10.1038/519283a.

Rockström, J., Barron, J. and Fox, P., 2003. Water productivity in rain-fed agriculture: challenges and opportunities for smallholder farmers in drought-prone tropical agroecosystems. Water Productivity in Agriculture: Limits and Opportunities for Improvement, 85199(669), p.8. DOI:10.1079/9780851996691.0145.

Schoonover, J.E. and Crim, J.F., 2015. An introduction to soil concepts and the role of soils in watershed management. Journal of Contemporary Water Research & Education, 154(1), pp.21-47. https://doi.org/10.1111/j.1936-704X.2015.03186.x

Sigunga, D.O., Janssen, B.H. and Oenema, O., 2002. Effects of improved drainage and nitrogen source on yields, nutrient uptake and utilization efficiencies by maize (Zea mays L.) on Vertisols in sub-humid environments. Nutrient Cycling in Agroecosystems, 62(3), pp.263-275. https://doi.org/10.1023/A:1021242918555

Svendsen, M., Ewing, M. and Msangi, S., 2009. Measuring irrigation performance in Africa (No. 894). Washington DC: International Food Policy Research Institute (IFPRI).

Trenberth, K.E., 2011. Changes in precipitation with climate change. Climate Research, 47(1-2), pp.123-138. DOI: 10.3354/cr00953.

Vanlauwe, B., AbdelGadir, A.H., Adewopo, J., Adjei-Nsiah, S., Ampadu-Boakye, T., Asare, R., Baijukya, F., Baars, E., Bekunda, M., Coyne, D. and Dianda, M., 2017. Looking back and moving forward: 50 years of soil and soil fertility management research in sub-Saharan Africa. International Journal of Agricultural Sustainability, 15(6), pp.613-631. DOI: 10.1080/14735903.2017.1393038.

Vanlauwe, B., Bationo, A., Chianu, J., Giller, K.E., Merckx, R., Mokwunye, U., Ohiokpehai, O., Pypers, P., Tabo, R., Shepherd, K.D. and Smaling, E.M.A., 2010. Integrated soil fertility management: operational definition and consequences for implementation and dissemination. Outlook on agriculture, 39(1), pp.17-24. https://doi.org/10.5367/000000010791169998.

Wouterse, F., 2017. Empowerment, climate change adaptation, and agricultural production: evidence from Niger. Climatic Change, 145(3), pp.367-382. https://doi.org/10.1007/s10584-017-2096-8.

Yazar, A. and Ali, A., 2016. Water harvesting in dry environments. In Innovations in Dryland Agriculture (pp. 49-98). Springer, Cham. https://doi.org/10.1007/978-3-319-47928-6_3

Yu, Y., Loiskandl, W., Kaul, H.P., Himmelbauer, M., Wei, W., Chen, L. and Bodner, G., 2016. Estimation of runoff mitigation by morphologically different cover crop root systems. Journal of Hydrology, 538, pp.667-676. https://doi.org/10.1016/j.jhydrol.2016.04.060.

Zhang, S., Grip, H. and Lövdahl, L., 2006. Effect of soil compaction on hydraulic properties of two loess soils in China. Soil and Tillage Research, 90(1-2), pp.117-125. DOI:10.1016/j.still.2005.08.012.

Zougmoré, R., Jalloh, A. and Tioro, A., 2014. Climate-smart soil water and nutrient management options in semiarid West Africa: a review of evidence and analysis of stone bunds and zaï techniques. Agriculture & Food Security, 3(1), pp.1-8. https://doi.org/10.1186/2048-7010-3-16.




URN: http://www.revista.ccba.uady.mx/urn:ISSN:1870-0462-tsaes.v25i3.42476

DOI: http://dx.doi.org/10.56369/tsaes.4247

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