Effect of Soil Conditioner on Carrot Growth and Soil Fertility Status

A field experiment was conducted in popular carrot cultivar Nepa Dream using randomized complete block design (RCBD) with four replications for evaluating the effects of ten different treatments of soil conditioner in combination with organic and inorganic fertilizers on root growth and soil productivity. Soil samples from each microplot were also analyzed for soil texture, pH, organic matter, total nitrogen, available nitrogen, total phosphorus and total potassium before sowing and after harvest. Effects on soil was not significant in the single season experiment but effects of the treatments on the carrot root growth and production was significant. For higher root yield and biological yield, treatments Soil Conditioner +Micronutrient (Double Dose)+1/2 Recommended Dose of Fertilizer +1/2 Farm Yard Manure (T10) followed by Soil Conditioner +Micronutrient (Normal)+1/2Recommended Dose of Fertilizer +1/2 Farm Yard Manure (T7), and Recommended Dose of Fertilizer Full (T2) were found better whereas treatment T10 was found closer to T2 and Soil Conditioner +Micronutrient (Double Dose)+Farm Yard Manure Full (T9) which showed higher mean performances for root diameter, cortex diameter and root length of carrot. In contrast, total soluble sugar as % brix was found less in the treatments involving one or more combinations of conditioner whereas highest for Farm Yard Manure and Recommended Dose of Fertilizer treatments either alone or in combination. Thus, use of normal dose of GMT™ soil conditioner along with ½ Recommended Dose of Fertilizer and ½ Farm Yard Manure (T7) can be used as an alternative to T2 for higher carrot production which also can reduce the use of commercial inorganic fertilizers for improving soil fertility status. For organic carrot production at low cost, T9 can also be used as an alternative to other combinations of chemical fertilizers.

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Soil Fertility Status in Relation to Farmers’ Practices Under Maize Based Systems in Western Region of Kenya: Yield Gap Analysis

Journal of Experimental Agriculture International ◽

10.9734/jeai/2019/v33i630161 ◽

2019 ◽

pp. 1-12

Author(s):

E. M. Muya ◽

J. M. Miriti ◽

M. Radiro ◽

A. Esilaba ◽

A. L. Chek ◽

...

Keyword(s):

Soil Fertility ◽

Soil Mapping ◽

Productivity Index ◽

Soil Productivity ◽

Western Region ◽

Yield Gap ◽

Fertility Status ◽

Yield Gaps ◽

Soil Fertility Status ◽

Mapping Units

A study was carried out in Kenya Cereal Enhancement Project site in Western region of Kenya to examine the soil fertility status in relation to the current blanket fertilizer recommendations and farmers’ practices across the four wards, namely: Motosiet, Keiyo, Cherangani and Kwanza. The baseline fertility status in different soil mapping units was assessed in terms of soil productivity index with a view of analyzing the levels of nutrients and yield gaps. Using the standard soil survey procedures, six soil mapping units were identified as UUr1, UUr2, UUr3, RUd, RUrb, and BU1.. The results showed that the highest productivity index was in unit BU1, followed by UUr1, UUr2, UUr3, and RUrb with values of 40.5, 29.4, 25.0, 16.0 and 8.9% respectively. Keiyo Ward had the highest level of nitrogen, being 125.82, followed by Motosiet, Cherangani and Kwanza with values of 99.92, 97.12, and 81.12 kg/ha respectively. Phosphorous level was highest in Kwanza (136.41 kg/ha), followed by Cherangani (106.82 kg/ha) and Keiyo Ward (76.08 kg/ha). The lowest level was recorded in Motosiet with the value of 72.56 kg/ha. Potassium was found to be adequate in all the four Wards with values ranging between 347.67 and 410.34 kg/ha. The maximum maize production recorded in the project sites was 9,000 kg/ha, with a yield gap of 1,000 kg/ha. This was achieved through application of 100 and 50 kg/ha of DAP and CAN respectively. This was followed by 6,750 kg/ha obtained through application of 50 kg/ha of DAP and CAN. The yields from the rest of the sites ranged between 1,800 and 4,500 kg/ha with yield gaps varying from 3,250 to 8,650 kg/ha. The lowest yields were obtained in Keiyo, followed by Kwanza Ward despite the relatively high macro- nutrient levels in the soils of the two Wards. This was attributed to soil-related constraints caused by the increased soil structural degradation and loss of soil tilth. Therefore, it is recommended that the envisaged climate smart technologies be geared towards enhancement of nutrient and water use efficiency through improved soil structure and tilth.

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Effect of integrated nutrient management on soil fertility and yield of maize crop (Zea mays) in Entic Haplustart in Tamil Nadu, India

Journal of Applied and Natural Science ◽

10.31018/jans.v6i1.418 ◽

2014 ◽

Vol 6 (1) ◽

pp. 294-297 ◽

Cited By ~ 1

Author(s):

V. Sanjivkumar

Keyword(s):

Soil Fertility ◽

Tamil Nadu ◽

Nutrient Management ◽

Block Design ◽

Magnesium Content ◽

Recommended Dose ◽

Maize Crop ◽

Inorganic Fertilizers ◽

Randomized Block Design ◽

Soil Fertility Status

A field experiment was conducted to study the integrated use of organic and inorganic fertilizers on the soil fertility status of Entic Haplustart in maize at Malayalathanpatti village, situated at Madurai district during Kharif season of 2008-2009. The experiment was conducted in Randomized Block Design with three replications in Annaiyur soil series (Entic Haplustert). The results revealed that highest grain yield of 4402 kg ha-1 was recorded in treatment that received vermicompost @ 5t ha-1 with 75 percent Recommended dose of fertilizer (RDF) and it was found to be superior to over treatments. Application of vermicompost @ 5t ha-1+75 percent RDF recorded the highest calcium and magnesium content in pot harvest soil sample (0.139 and 0.281%). And also increased the crude protein (16.67 %) and starch (81.34 %) content in maize crop and it was followed by the treatment which received sewage sludge 2t ha-1 with 75 percent RDF (Recommended dose of fertilizers) and green leaf manure @12.5t ha-1whereas the lowest value was recorded in control plot respectively. The vermicompost along with inorganic fertilizers were efficiently used by maize crop for their growth and development and also maintainined soil fertility and increased yield of the crop.

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Evaluating Potentials of Integrated Application of Plant Residues and Inorganic Fertilizers in Enhancing Soil Fertility Status and Maize (Zea mays L.) yield

International Journal of Research Studies in Agricultural Sciences ◽

10.20431/2454-6224.0402004 ◽

2018 ◽

Vol 4 (2) ◽

Keyword(s):

Zea Mays ◽

Soil Fertility ◽

Zea Mays L ◽

Plant Residues ◽

Inorganic Fertilizers ◽

Fertility Status ◽

Soil Fertility Status

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Effects of long term use of organic and inorganic fertilizers on soil fertility and productivity under paddy- sesame cropping system

Bangladesh Journal of Botany ◽

10.3329/bjb.v49i3.49988 ◽

2020 ◽

Vol 49 (3) ◽

pp. 585-591

Author(s):

Ashok Kumar Gaddi ◽

MA Basavanneppa ◽

Prabhuling Tevari

Keyword(s):

Soil Fertility ◽

Grain Yield ◽

Cropping System ◽

Soil Test ◽

Inorganic Fertilizers ◽

Fertility Status ◽

Soil Fertility Status ◽

Organic And Inorganic Fertilizers ◽

Equivalent Yield

A field study was conducted to analyze the effect of long term use of organic and inorganic fertilizers on productivity and soil fertility under paddy-sesame cropping system. Application of 100% NPK + secondary and micro-nutrients based on soil test (T7) showed significantly higher mean grain yield of paddy (4735 kg/ha) and sesame (460 kg/ha) and rice equivalent yield (5348 kg/ha) followed by application of 50% NPK + 50% N as Farmyard manure (FYM) + inorganic source of micronutrients as per soil test (T1). Whereas, application of 50% recommended dose of nitrogen (RDN) through FYM + bio-fertilizers for N + Recommended dose of phosphorus (RDP) through rock phosphate + phosphorus solubalizing bacteria (PSB) showed significantly least mean grain yield of paddy (3209 kg/ha) and sesame (314 kg/ha) and rice equivalent yield (3628 kg/ha). Further, among organic treatments (T2 to T6), higher mean grain yield of paddy (3834 kg/ha), sesame (326 kg/ha) and rice equivalent yield (4269 kg/ha) as compared to other treatments was recorded following the application of one third of RDN through FYM + one third of RDN through vermicompost + one third of RDN through neem cake + bio-fertilizers containing N and P carriers (T6). Whereas, higher nutrient status with respect to major and micronutrients and the improved soil fertility status was recorded in organic treatment plots. The application of nutrients through organic sources would improve the soil fertility status under paddy-sesame cropping system.

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