Response of potato crop to selected nutrients in central and eastern highlands of Kenya

Mugo, James N.; Karanja, NK; Gachene, Ckk; Dittert, Klaus; Gitari, Harun I.; Schulte-Geldermann, Elmar

doi:10.1080/23311932.2021.1898762

Cited by 20 publications

(20 citation statements)

References 51 publications

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“…Although much focus has been placed on N, the agronomic efficiency of applied N can be largely increased by adequate P and K fertilization. Deficiencies of secondary and micronutrients, especially S, Mg, and Zn are increasingly being observed in dominant Kenya soils [13,10,11]. Conservation agriculture is one of the options for the farmers as it can halt and reverse land degradation and boost agricultural productivity leading to food security [21].…”

Section: Annals Of Reviews and Researchmentioning

confidence: 99%

“…Many farmers have tried to compensate for the low yields through increasing tillage and cropping regimes to meet basic household food requirements, but they have not fully achieved their potential [6]. In Kenya, deteriorated soils, lack of adequate nutrients, and increased soil erosion are among the obstacles to small-scale farmers from reaching their production potential [7,5,[8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

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Tillage Methods and Inorganic Nutrients Source’s Interactive Effects in Maize and Beans Performance

Ogega

2022

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Maize and bean production have been on a declining trend in the majority of households in sub-Saharan African nations, Kenya inclusive. To improve the production of these crops, the current study aimed at assessing the interactive effects of minimum tillage and conventional tillage coupled with inorganic nutrient sources. The experiment was laid under a split-plot arrangement in a randomized complete block design where the tillage methods comprised the main plots whereas the sub plots were occupied by five inorganic fertilizers: NK, NP, KP, NPK, and NPK+Zn+B+Mg+Ca+S. The results indicated maize growth, yields, and chlorophyll concentration were significantly higher under minimum tillage and the combination of NPK+Zn+B+Mg+Ca+S nutrients. In addition, there was a significant effect on the interaction of tillage and inorganic nutrients on maize growth, yields, and chlorophyll concentration. The study, therefore, recommends the use of a combination of NPK+Zn+B+Mg+Ca+S in minimum tillage as viable options for optimal growth and production of maize and beans.

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Section: Annals Of Reviews and Researchmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tillage Methods and Inorganic Nutrients Source’s Interactive Effects in Maize and Beans Performance

Ogega

2022

ARR

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“…K is the nutrient that is most absorbed by crops and is the most abundant cation in plants. However, the literature notes that excessive potassium use in the soil can impair the production of tubers by increasing the K + /(Ca 2+ +Mg 2+ ) ratio due to antagonism in the uptake of these nutrients (Reis Júnior & Monnerat, 2001;Mugo et al, 2021).…”

Section: Potassium (K)mentioning

confidence: 99%

Accumulation of macronutrients and productivity of potato with foliar application of biofertilizer

Araújo

Oliveira

Lana

et al. 2021

IJANR

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The addition of organic compounds to fertilizers has shown positive effects on plant metabolism. This study aimed to evaluate the macronutrient accumulation and productivity of potato with the use of biofertilizer (BF) applied to the leaves. A 2×7 factorial plot with a plot subdivided in time and ten replications used two forms of fertilization: a chemical fertilizer with conventional NPK (nitrogen, phosphorus and potassium: control) and conventional fertilizer plus biofertilizers (BF); evaluations were performed 31, 41, 51, 61, 71, 81 and 91 days after planting (DAP) using the Jelly cultivar. The BF increased the maximum N, K, Ca and Mg accumulations in the leaves, especially N and K, with the period of greatest accumulation occurring between 62 and 66 DAP. The accumulations of N, P, K, Ca and Mg in the tubers accelerated from 71 DAP. At the end of the cycle (e.g., 91 DAP), the increases in the nutrient accumulations of N, P, K and Ca were between 30 and 64% higher for the BF application, the Mg accumulations doubled and the S accumulations exhibited no differences between the evaluation periods. For the leaves, the following decreasing sequence of maximum accumulation was observed: K>N>Ca>Mg>S>P. For the tubers, the following decreasing sequence was obtained: K>N>P>Ca>Mg>S. The use of biofertilizers caused higher productivity of tubers of greater caliber and soluble solids contents in the cv. Jelly potato tubers.

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“…Site‐specific fertilizer management has been evaluated in recent years through nutrient omission trials to capture the potential presence of limiting nutrients and responses (Kihara et al., 2016; Mugo et al., 2021; Nziguheba et al., 2009). Fertilizer blending is used in Kenya to produce crop‐specific and site‐specific fertilizer (GIZ, 2016; Sitienei et al., 2018), and these fertilizer blends are available in the market.…”

Section: Introductionmentioning

confidence: 99%

Response of potato to fertilizers applied on different soil types in Kenyan Highlands

et al. 2021

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Declining soil fertility in Nitisols and Planosols, which dominate major potato (Solanum tuberosum L.) growing areas of Kenya, is a hindrance to sustainable production of the crop. A study was conducted in Nyandarua County, Kenya, to assess performance of potato and the agronomic efficiencies of three fertilizer types: diammonium phosphate (DAP) (N–P2O5–K2O: 18–46–0), Mavuno Peas, Beans and Root Vegetables (MRV) (15N:8 P2O5:15 K2O plus S, Ca, Mg, Fe, Cu, Zn, B, Mn, Mo), and new Mavuno blend (18N:24 P2O5:10 K2O plus 5S, 0.04B, 0.02 Zn). The experiments were established on Nitisol and Planosol soil types in farmers’ fields. Two potato varieties were evaluated in a split plot layout design. Diammonium phosphate had the highest and significant influence on potato haulm, giving 16.5 and 15.5 g plant–1 on variety Sherekea growing on Nitisol and Planosol, respectively. Fertilizer type significantly influenced potato yield, which was recorded at 29.2 t ha–1 with DAP and 26.6 t ha–1 with new Mavuno on variety Sherekea grown on Nitisol. A significant positive interaction (P < .05) of fertilizer type and soil type was observed. Fertilizers also gave significant effect on agronomic efficiency of N, P, and K. Potato yield and agronomic nutrient use efficiency were dependent on the fertilizer types used as well as soil type. Diammonium phosphate and new Mavuno were the best fertilizer types.

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Response of potato crop to selected nutrients in central and eastern highlands of Kenya

Cited by 20 publications

References 51 publications

Tillage Methods and Inorganic Nutrients Source’s Interactive Effects in Maize and Beans Performance

Tillage Methods and Inorganic Nutrients Source’s Interactive Effects in Maize and Beans Performance

Accumulation of macronutrients and productivity of potato with foliar application of biofertilizer

Response of potato to fertilizers applied on different soil types in Kenyan Highlands

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