Open Access Original Research Article

Soil Nutrient Dynamics and Yield of Cotton (Gossypium hirsutum L.) Following an Amendment with Cattle Manure

Otobong B. Iren, Yahya G. Aminu

International Journal of Plant & Soil Science, Page 1-10
DOI: 10.9734/IJPSS/2017/33124

The availability of cattle manure in the study area needs to be properly utilized to benefit the environment and provide nutrients to crop. A field experiment was conducted during the wet season (June-October) of 2014 planting season at two locations within the Research Farm of the College of Agriculture, Jalingo, Taraba State, Nigeria to determine the effects of cattle manure rates on soil nutrient distribution and yield of cotton. Four nitrogen rates in cattle manure (150, 200, 250 and 300 kg N/ha) and a control (no amendment) were laid out in a randomized complete block design with three replications. The experimental soil was loamy sand whether at the surface (0-15 cm), subsurface (15-30 cm) or sub subsurface (30-60 cm) with clay content increasing down the profile. The soil pH was moderately acid at the surface but strongly acid at the sub surfaces. Nutrient distribution in the soil after cotton harvest shows that nutrients in the soil were affected by rates of application of cattle manure with the values increasing with increase in manure rates and decreasing as the soil depth increases. The yield components such as cottonseed yield, lint yield, seed yield, number of bolls per plant and boll weight were significantly (P < 0.05) improved compared with the control. The highest cottonseed yield of 1453 kg/ha was produced from plots treated with 250 kg N/ha. Therefore, farmers are encouraged to use cattle manure in increasing the fertility level of soil as well as a way of safe agriculture with minimum pollution effects.

Open Access Original Research Article

Effect of Inorganic and Organic Fertilisers on Yield and Soil Nutrient Status of Walnut Orchard

Imtiyaz A. Wani, Sheikh Mehraj, Mohammed Tauseef Ali, Asma Hassan, Sartaj A. Wani, Sharbat Hussain, I. A. Bisati

International Journal of Plant & Soil Science, Page 1-13
DOI: 10.9734/IJPSS/2017/32310

The present study was aimed to determine the effect of integrated application of inorganic and organic fertilisers on nut yield and soil nutrient status of walnut orchard under temperate region of India (Kashmir) during year 2011 and 2012. The experiment consisted of four selections [SKAU/002 (S1), SKAU/008 (S2), SKAU/024 (S3) and SKAU/040 (S4)] of walnut and six mineral  treatments [T1 (100% NPK recommended as per package of practices), T2 {100% through manure (FYM 50% + vermicompost 25% + poultry manure 25%)}, T3 (75% NPK inorganic fertilizers + 25% FYM), T4 (75% NPK inorganic fertilizers + 25% vermicompost), T5 (75% NPK  inorganic fertilizers + 25% poultry manure) and T6 {75% NPK inorganic fertilizers + 25% manure (1/3 FYM + 1/3 vermicompost + 1/3 poultry manure)} replicated five times and three trees in each replication in Factorial Randomized Block Design. All fertilizers and manures were applied in the first week of December beneath the tree canopy and mixed well with soil. Maximum yield 6.82 kg/tree and nut weight, 13.66 g in selection SKAU/024 were obtained with the application of 75% NPK through inorganic fertilizers + 25% through vermicompost .Combined application improved soil nutrient status. Highest available nitrogen (338.59 kg/ha), phosphorus (20.80 kg/ha) and calcium (1312.25ppm), available zinc (1.19 ppm), manganese (66.66 ppm), iron (55.95 ppm) and copper content (2.74 ppm) was found in treatment 75% NPK through inorganic fertilizers + 25% through vermicompost, whereas, maximum available potassium (259.27 kg/ha) and magnesium (268.86 ppm) was observed in treatment  {100% through manure (FYM 50% + vermicompost 25% + poultry manure 25%)}. The application of 75% fertilizer through inorganic coupled with 25% vermicompost enhanced yield as well as soil nutrient status followed by treatment 75% fertilizer through inorganic coupled with 25% poultry manure.

Open Access Original Research Article

Reclaiming Sodium Affected Soil: The Potential of Organic Amendments

D. K. Sappor, B. A. Osei, M. R. Ahmed

International Journal of Plant & Soil Science, Page 1-11
DOI: 10.9734/IJPSS/2017/33410

A study was conducted to evaluate the potential of organic amendments in managing sodic soils for crop production. In doing this, a pot experiment was conducted in which saw dust biochar (SDB), palm fiber biochar (PFB), poultry manure biochar (PMB) and poultry manure (PM) were applied to sodic soil sampled from an industrial area in Cape Coast, Ghana. Gypsum amendment and a control were included for the purpose of comparing results. All amendments were applied at the rate of 4.78 t ha-1 which was the full gypsum requirement rate for the soil. Amended soils were incubated and weekly sampled for 6-weeks (week 3 to 8) for laboratory analysis. Periodic watering was done to keep soils moisture at field capacity. From the results, organic based amendments marginally reduced soil pH and electrical conductivity (EC). Same amendments significantly (P = 0.05) increased soil Ca+2 and Mg+2, with SDB registering the highest increase. The increases in the levels of Na+ and K+ were marginal and statistically insignificant (P = 0.05). PFB recorded the highest cation exchange capacity (CEC) at week 8 and SDB and PFB reduced soil sodicity below the minimum threshold of exchangeable sodium percentage (ESP) 15. All organic based amendments recorded marginal increase in soil organic carbon (OC) but SDB recorded the highest value for OC at week 8. PMB released the highest amount of available P, with peak availability observed in week 6 Insignificant (P = 0.05) increases were also observed for soil NH4+-N and NO3--N. SDB and PFB recorded 90% and 80 maize seed germination and also, 10.1 t ha-1 and 8.7 t ha-1 dry matter yields respectively. No maize seed however germinated in the control and all other amendment.

Open Access Original Research Article

Zinc Fertilization in Potato: A Physiological and Bio-chemical Study

Hirak Banerjee, Sukamal Sarkar, Prahlad Deb, Ivi Chakraborty, Sayan Sau, Krishnendu Ray

International Journal of Plant & Soil Science, Page 1-13
DOI: 10.9734/IJPSS/2017/33844

Aims: More than 54% of soils in West Bengal are Zinc (Zn) deficient and therefore, Zn−fertilization is assumed to play a key role not only for increasing potato yield but also for combating wide spread deficiency of micronutrients (mainly Zn) in many potato growing areas of the state.

Place and Duration of Study: A two-year field experiment was conducted during winter 2013-14 and 2014-15 at to assess the advantages of Zn nutrition in potato cv. Kufri Jyoti under alluvial soil (Entisols) of West Bengal, India

Methodology: The experiment was laid out in randomized block design (RBD) having five treatments and four replications The potato was fertilized with five zinc levels (0, 1.5, 3.0, 4.5 and 6.0 kg Zn ha−1) through zinc sulphate heptahydrate i.e. ZnSO4, 7H2O (commercial grade Multi-Zn contained 21% Zn) at the time of planting. A uniform dose of NPK at 200:150:150 kg ha−1 RDF was applied in all the plots in the form of urea (46% N), single super phosphate (16% P2O5), and muriate of potash (60% K2O).

Results: Application Zn fertilizer at 4.5 kg ha−1 recorded significantly higher germination %, plant height, leaf area index (LAI), dry matter accumulation (DMA) and number of tubers hill−1. Total number and yield of tuber ha−1 were also changed significantly (P≤ .05) with the levels of Zn-fertilization. Quality parameters like total soluble solids (TSS), total acidity, ascorbic acid, starch and amount of total sugar contents of fresh potato tuber as well as organoleptic quality of chips (colour) also influenced significantly (P≤ .05)  with varied levels of Zn fertilization.

Conclusion: Results suggest that application of 4.5 kg Zn ha−1 in combination with recommended dose fertilizer (RDF) of NPK (i.e. 200:150:150 kg ha−1) is vital for optimizing yield components, yield and quality of potato (cv. Kufri Jyoti)  in trans-Gangetic plains of West Bengal, India.

Open Access Original Research Article

Effect of Integrated Nutrient Management on Growth and Yield of Tomato (Solanum lycopersicum L.) var. Arka Rakshak

Nagoni Siddaling, K. Kempegowda, Hadora Raghavendra

International Journal of Plant & Soil Science, Page 1-7
DOI: 10.9734/IJPSS/2017/33280

Investigation was carried out to study the effect integrated nutrient management in tomato (Solanum lycopersicum L.) var. Arka Rakshak during 2014-15 at the Division of Horticulture, University of Agricultural Sciences, Gandhi Krishi Viganana Kendra, Bengaluru. The experiment comprised of fifteen different treatment combinations of inorganic fertilizers (RDF) and biofertilizers (VAM, PSB and Azatobacter) were tried in randomized complete block design (RCBD) with three replications. The growth parameters of tomato plants such as plant height (108.60, 113.50 and 122.36 cm) number of branches (12.00, 15.20 and 18.30) and leaf area ((68.53 cm2) were recorded maximum in the treatment received 75 per cent RDF (Recommended Dose of Fertilizers) + Azotobacter + Phosphorus Solubilizing Bacterium [PSB] + VAM (Vascular Arbescular Mychorriza) at 45, 90 and 135 Days After Transplanting respectively. Plant supplied with 75 per cent RDF + Azotobacter + Phosphorus Solubilizing Bacterium [PSB] + VAM recorded maximum fruit weight (69.70 g), number of fruits per plant (80.00), fruit length (7.15 cm), fruit diameter (5.88 cm), fruit yield /plot (7.50 kg/plot) and total yield / ha (112.50 tons/ha) while, minimum fruit and yield attributing parameters were recorded in plants supplied with RDF alone (Control).