The Effect of Organic-Based Nutrient Management Strategies on Soil Nutrient Availability and Maize Performance in Njoro, Kenya

Lelei, Joyce J.; Onwonga, Richard N.; Freyer, Bernhard

doi:10.1007/978-90-481-2543-2_29

Cited by 10 publications

(11 citation statements)

References 32 publications

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“…The increased LAI observed in response to applications of organic and inorganic fertilizer combinations resulted in increased CGRs (Naing et al, 2010). The results were in agreement with observations made by Lelei, Onwonga & Freyer (2009), Saleem (2010), Ibeawuchi et al (2007) and Khan et al (2009), who reported that higher LAI and CGR values and higher biological yields of corn occurred in response to combinations of fertilizers than to lone fertilizers.…”

Section: Discussionsupporting

confidence: 92%

Impact of organic and inorganic fertilizers on the yield and quality of silage corn intercropped with soybean

Baghdadi

Halim

Ghasemzadeh

et al. 2018

PeerJ

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BackgroundCorn silage is an important feed for intense ruminant production, but the growth of corn relies heavily on the use of chemical fertilizers. Sustainable crop production requires careful management of all nutrient sources available on a farm, particularly in corn-based cropping systems.MethodsExperiments were conducted to determine the appropriate technique of corn-legume intercropping in conjunction with the supplemental use of chemical fertilizers, organic manure, and biofertilizers (BFs). Acetylene reduction assays (ARAs) were also performed on corn and soybean roots.ResultsCombining chemical fertilizers with chicken manure (CM) in a 50:50 ratio and applying 50% NPK+50% CM+BF produced fresh forage and dry matter (DM) yields that were similar to those produced in the 100% nitrogen (N), phosphorus (P), potassium (K) treatment. Among the lone fertilizer treatments, the inorganic fertilizer (100% NPK) treatment produced the highest DM yield (13.86 t/ha) of forage and outyielded the 100% CM (9.74 t/ha) treatment. However, when CM was combined with NPK, the resulting DM yield of forage (13.86 t/ha) was the same as that resulting from 100% NPK (13.68 t/ha). Compared with CM applications alone, combinations of NPK and CM applications resulted in increased plant height, crop growth rates (CGRs) and leaf area index (LAI), but the values of these parameters were similar to those resulting from 100% NPK application. Fertilizers in which the ratio was 50% CM+50% NPK or 50% CM+50% NPK+BF resulted in protein yields that were similar to those resulting from conventional fertilizers. Similarly, the CP content did not significantly differ between applications of the 100% NPK and 50% CM+50% NPK fertilizers. The use of BFs had no significant impact on improving either the yield or quality of forage fertilized with inorganic or organic fertilizer. Lactic acid responded differently to different fertilizer applications and was significantly higher in the fertilized plots than in the unfertilized plots. Compared with treatments of lone chemical and lone organic manure fertilizers, treatments involving applications of BF and a combination of BF and NPK or CM resulted in higher ARA values.DiscussionThere is no simple and easy approach to increase biological nitrogen fixation (BNF) in grain legumes grown as part of a cropping system under realistic farm field conditions. Overall, evidence recorded from this study proves that, compared with corn monocrops combined with CM and chemical fertilizers, corn-soybean intercrops could increase forage yields and quality, produce higher total protein yields, and reduce the need for protein supplements and chemical fertilizers.

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Section: Discussionsupporting

confidence: 92%

Impact of organic and inorganic fertilizers on the yield and quality of silage corn intercropped with soybean

Baghdadi

Halim

Ghasemzadeh

et al. 2018

PeerJ

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“…Thus, higher grain yield of maize obtained after incorporation of legume green manure than weedy fallow could be attributed to positive effect of legume green manure on yield components of maize. Lelei et al [25] reported higher maize grain and dry matter yields following leguminous fallow than natural fallow and attributed these to the supply of N through mineralization of the high quality residues. Several other workers have also reported improved maize yield after legumes incorporation [7,[26][27][28].…”

Section: Response To Green Manurementioning

confidence: 99%

Contributions of Short Duration Legume Fallow to Maize (Zea mays L.) Varieties Under Different Nitrogen Levels in a Semi-Arid Environment

Adesoji¹

2013

AJEA

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Aims:To evaluate the contributions of short duration legume fallow to maize (Zea mays L.) varieties under different nitrogen levels in a semi-arid environment of Nigeria. Study Design: Split-plot design. Place and Duration: This study was carried out at the Research Farm of the Institute for Agricultural Research, Ahmadu Bello University, Zaria, Nigeria, during rainy seasons of 2005, 2006 and 2007. Methodology: The treatments consisted of two maize varieties (SAMMAZ 12 and SAMMAZ 27) and five rates of nitrogen (0, 30, 60, 90 and 120kg N ha -1 ) in the main plots, while three green manure crops (Lablab (Lablab purpureus), Mucuna (Mucuna pruriens)and Soybean (Glycine max (L.) Merrill)) and a weedy fallow were accommodated in the sub-plots. The treatments were laid out in a split-plot design with three replications. The green manure crops were incorporated at 49 days (7weeks) after planting. After 3 days of incorporation, maize seeds were planted. Results: SAMMAZ 12 and SAMMAZ 27 were similar on grain yield and most of the yield components studied. Nitrogen fertilization significantly increased yield components and Research ArticleAmerican Journal of Experimental Agriculture, 3(3): [542][543][544][545][546][547][548][549][550][551][552][553][554][555][556] 2013 543 grain yield. In combined mean, application of 30, 60, 90 and 120 kg N ha -1 gave 81.4, 127.2, 151.6 and 165.5% increases in maize grain yield over zero N treatment, respectively. Increasing N rate beyond 90 kg N ha -1 did not significantly increased maize grain yield. Incorporation of mucuna, lablab and soybean significantly increased yield components and grain yield. In combined mean, incorporation of mucuna, lablab and soybean gave 68.8, 73.7 and 59.4% increases in maize grain yield over weedy fallow, respectively. Conclusion: Although, application of nitrogen gave marked increases in maize grain yield as did green manure, however, incorporation of short duration legume, which is environmentally friendly and a soil improver, will be a better option for sustainable maize production in northern Guinea Savanna of Nigeria.

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“…Despite this decline, however, lablab appears to persist as a garden crop (rather than a field crop) in eastern and southern Africa; and recent market surveys from eastern Africa suggest that there is a high demand (and subsequently a good price) for lablab in Kenya (Ngailo et al 2003). There is almost no ongoing lablab research in Africa, except for programs focusing on improving soil properties by using green-manure/forage crops, such as in maize-based systems of Kenya (Mureithi et al 2003; Cheruiyot et al 2007; Lelei et al 2009), Malawi (Sakala et al 2004) and Nigeria (e.g., Ibewiro et al 2000; Amodu et al 2004; Gbaraneh et al 2004; Rahman and Ogungbile 2006), or sorghum- and millet-based systems in the semi-arid tropics of Mali (Kouyaté et al 2000). Almost all of these African initiatives have included and continue to include one popular late-maturing forage cultivar, cv.…”

Section: Four Thesesmentioning

confidence: 99%

Lablab purpureus—A Crop Lost for Africa?

Maass

Knox

Venkatesha

et al. 2010

Tropical Plant Biol.

124

113

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In recent years, so-called ‘lost crops’ have been appraised in a number of reviews, among them Lablab purpureus in the context of African vegetable species. This crop cannot truly be considered ‘lost’ because worldwide more than 150 common names are applied to it. Based on a comprehensive literature review, this paper aims to put forward four theses, (i) Lablab is one of the most diverse domesticated legume species and has multiple uses. Although its largest agro-morphological diversity occurs in South Asia, its origin appears to be Africa. (ii) Crop improvement in South Asia is based on limited genetic diversity. (iii) The restricted research and development performed in Africa focuses either on improving forage or soil properties mostly through one popular cultivar, Rongai, while the available diversity of lablab in Africa might be under threat of genetic erosion. (iv) Lablab is better adapted to drought than common beans (Phaseolus vulgaris) or cowpea (Vigna unguiculata), both of which have been preferred to lablab in African agricultural production systems. Lablab might offer comparable opportunities for African agriculture in the view of global change. Its wide potential for adaptation throughout eastern and southern Africa is shown with a GIS (geographic information systems) approach.

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The Effect of Organic-Based Nutrient Management Strategies on Soil Nutrient Availability and Maize Performance in Njoro, Kenya

Cited by 10 publications

References 32 publications

Impact of organic and inorganic fertilizers on the yield and quality of silage corn intercropped with soybean

Impact of organic and inorganic fertilizers on the yield and quality of silage corn intercropped with soybean

Contributions of Short Duration Legume Fallow to Maize (Zea mays L.) Varieties Under Different Nitrogen Levels in a Semi-Arid Environment

Lablab purpureus—A Crop Lost for Africa?

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