Site Specific Fertilizer Recommendations for Maize (Zea mays L.) Grown in Reddish Brown Earth and Reddish Brown Latasolic Soils

Chathurika, J. A. S.; Indraratne, S. P.; Dandeniya, W. S.

doi:10.4038/tar.v25i3.8039

Cited by 7 publications

(10 citation statements)

References 12 publications

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“…Based on the initial soil characterization and field observation soil fertility constraints were identified, which is elaborated in results and discussion. A site specific fertilizer recommendation (SSF) formulated in previous study for the same field (Chathurika et al, 2014) was adopted for the present experiment to correct nutrient deficiencies in the soil. Biochar was used as the organic soil amendment to improve both physical and chemical related soil constraints.…”

Section: Greenhouse and Field Experimentsmentioning

confidence: 99%

Beneficial management practices on growth and yield parameters of maize (Zea mays) and soil fertility improvement

et al. 2016

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Beneficial management practices can be used to improve the crop productivity of tropical Alfisols. This study evaluated beneficial management practices to overcome the soil physical and chemical limitations for growing maize (Zea mays). The experiment was conducted in the Low Country Dry Zone (DL1b) on Reddish Brown Earth soil (Typic Rhodustalf). Four treatments; un-amended control (C), site specific fertilizer (SSF), biochar applied at 1 t/ha with SFF (BC+SSF) and rock powder applied at 10 t/ha with SSF (RP+SSF) were tested using maize as the test crop initially in the greenhouse and later in the field at DL1b for two growing seasons (2013 Yala and 2013/2014 Maha) for their effects on crop growth and soil fertility. Soil was neutral, non-saline, sandy clay loam in texture with comparatively high clay content (27%) and low in organic matter content (1.5%) and deficient in N, P, S, Ca, Zn, and Cu, initially. In the greenhouse, plant dry weight increased significantly with the addition of amendments i.e., fertilizers alone (SSF), or BC+SSF or RP+SSF. In the field study, no significant differences were observed for soil pH with the addition of amendments but biochar application significantly increased cation exchange capacity, organic matter, potentially mineralizable nitrogen and carbon management index. Rock powder+SSF and BC+SSF significantly increased the grain yield over the control in both seasons. Both labile and recalcitrant C were significantly higher in BC+SSF treatment than the others. Further, application of BC and RP had no significant impact on soil textural fractions and bulk density, yet in both seasons, BC+SSF application increased the aggregate stability greater than other treatments. The results of the field experiment suggest that biochar and rock powder with adequate nutrients effectively improved soil fertility and productivity.

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Section: Greenhouse and Field Experimentsmentioning

confidence: 99%

Beneficial management practices on growth and yield parameters of maize (Zea mays) and soil fertility improvement

et al. 2016

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“…Organic C contents of the soils were determined by digestion with an acid dichromate solution and titrating with ferrous ammonium sulphate according to a modified Walkley and Black method (Nelson and Sommers, 1996) were extracted using a three-step extraction procedure (Portch and Hunter, 2002;Kumaragamage and Indraratne, 2011). Soil collection and analysis for basic properties and available nutrients are described in more detail in Chathurika et al (2014).…”

Section: Initial Soil Characterizationmentioning

confidence: 99%

Improving soil carbon pool, soil fertility and yield of maize (Zea mays L.) in low-fertile tropical Alfisols by combining fertilizers with slow-decomposing organic amendments

et al. 2019

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Amendment of recalcitrant organic materials with high carbon/nitrogen (C/N)-ratio may improve and maintain soil labile C for a longer period, thus enhancing the productivity of soils with low fertility; however, immobilization of N may affect the plant growth negatively. To reduce the negative impacts, recalcitrant organic materials can be pre-incubated with N-rich sources or applied in combination with fertilizers. The current study evaluated sawdust biochar (BC) and pre-incubated cattle manure–sawdust mixture (CS) amendments with synthetic fertilizers in improving soil carbon pool, soil fertility and maize (Zea mays L.) yield on a tropical Alfisol. Four treatments: control, site-specific fertilizer (SSF), site-specific fertilizer with sawdust biochar (BC + SSF) or pre-incubated cattle manure-sawdust mixture (CS + SSF), were evaluated for two seasons with maize. The residual effect was evaluated in the third season. During the year of active C application, lability index, C management index and potentially mineralizable N were significantly greater in CS + SSF than BC + SSF treatment. However, the same indices measured in the third season with no further application of amendments were significantly greater in BC + SSF than in CS + SSF treatment, indicating an increase in more recalcitrant C pool with BC amendment. Application of organic amendments improved soil fertility parameters compared with the application of fertilizer alone. Maize yield was significantly increased by fertilizer, with or without organic amendments; with significantly greater yield in BC + SSF than other treatments. Results suggest that soil amendment with BC had greater potential to improve the soil carbon pool and maintain labile carbon for a longer period than a pre-incubated CS.

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“…As shown in Figures 2 and 3, during Season 1, statistical significance was not observed for green leaf area index and total dry weight at both growth stages under the two crop management systems. However, the adaptation package significantly (p<0.05) improved leaf area index and total dry weight over the existing practice during Season 2 as mulching, IPM and SSFM enhanced the growth of potato when farmers increasingly adapted the package (Kumar and Lal, 2012;Chathurika et al, 2014 andPrasannath et al, 2014).…”

Section: Meteorological Observations During the Researchmentioning

confidence: 99%

“…This indicates that the adaptation package did not cause any detrimental effects on soil properties at the end of each season (Table 5). In contrast, as demonstrated by Chathurika et al (2014) site-specific fertilizer management helped to correct nutrient deficiencies and avoid excess application thereby minimizing environmental pollution.…”

Section: Fresh Tuber Yieldmentioning

confidence: 99%

“…Hence, the objective of the present work was to test a package of climate change-adaptive and eco-friendly practices for potato which comprised of mulching for soil moisture conservation, integrated pest management (IPM) for environment-friendly crop protection and site-specific fertilizer management (SSFM) for efficient crop-soil nutrient management in the farmer fields of Jaffna District to study its performances on growth, yield, economy and environmental friendliness in comparison to the existing farmers' practice. This package was formulated for upland cropping systems through a comprehensive multi-locational onstation field study (Abhayapala et al, 2014;Chathurika et al, 2014;Malaviarachchi et al, 2014 andPrasannath et al, 2014) for five candidate upland crops.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of a climate change-adaptive, eco-friendly agronomic package for potato (Solanum tuberosum L.) cultivation in the farmer fields of the Jaffna district of Sri Lanka

Eeswaran¹,

Costa²,

Costa³

et al. 2016

Trop. Agric. Res.

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Potato is one of the key annual upland cash crops cultivated in the Jaffna District of Sri Lanka. However, potato farmers are challenged by climate extremes, increasing pest/disease loads and excessive use of agro-chemicals all of which are expected to increase in the future. To address these critical issues, a package of climate changeadaptive and eco-friendly agronomic practices that included mulching to conserve soil moisture, integrated pest management for crop protection and site-specific fertilizer management for efficient crop-soil nutrient management (adaptation package) was formulated and tested on potato (Solanum tuberosum L.) crops in seven farmer fields in Jaffna. The experiment was conducted in the major rainy season (Maha) of 2013/2014 and 2014/2015 and consisted of two treatments as Adaptation package (T 1) and Existing practice (T 2), which is the current farmers' practices characterized with heavy reliance on chemical control of pests and diseases and application of inorganic fertilizers subsequent to decisions of farmer. The results revealed significant (p<0.05) benefits of the above climate changeadaptive, eco-friendly agronomic package in terms of growth, yield, economic profit and environmental health of potato cultivation. Benefits of the adaptation package were greater in the drier and warmer 2014/15 Maha season, thus demonstrating its climate resilience. Therefore, the tested adaptation package can be recommended for adoption by the farmers to improve the yield of potato while promoting lower water and agro-chemical use thereby having increased resilience to climate change and improved environmental sustainability especially in the dry regions where potato is cultivated.

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Site Specific Fertilizer Recommendations for Maize (Zea mays L.) Grown in Reddish Brown Earth and Reddish Brown Latasolic Soils

Cited by 7 publications

References 12 publications

Beneficial management practices on growth and yield parameters of maize (<em>Zea mays</em>) and soil fertility improvement

Beneficial management practices on growth and yield parameters of maize (<em>Zea mays</em>) and soil fertility improvement

Improving soil carbon pool, soil fertility and yield of maize (Zea mays L.) in low-fertile tropical Alfisols by combining fertilizers with slow-decomposing organic amendments

Evaluation of a climate change-adaptive, eco-friendly agronomic package for potato (<em>Solanum tuberosum</em> L.) cultivation in the farmer fields of the Jaffna district of Sri Lanka

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