scholarly journals HYDROPONICS SYSTEM AS AN ALTERNATIVE TO SOIL FARMING OF WATERMELON IN NIGERIA

Watermelon is an important vegetable consumed worldwide. It is mostly grown in a sandy loam soil with a pH value ranging from 6.5 to 7.5. However, due to the constraints in land accessibility coupled to the farmers-herders clashes for limited land resources in Nigeria, it is important to shift the focus from land extensification to intensification farming. This study therefore compares the potential of hydroponics system of cultivating watermelon relative to conventional soil farming system. Three varieties of water melon (Diamond black, Crimson sweet and Travelers watermelon varieties) were planted in 2 substrate conditions (soil and cocopeat) 4 kg each. It was a 3x2 factorial experiment arranged in a completely randomized design with 3 replicates. Data were collected on the agronomic and yield parameters, and analysed using ANOVA, and means were separated using LSD at 5% level of significance. Results obtained showed varied agronomic performances among the genotypes, while the Crimson sweet watermelon produced significantly heavier fruit size (5.38±0.34) compared to the rest genotype. However, the highest number of fruits (2.33±0.22) was obtained in the soil, but the substrate type was insignificant in the average fruit weight. Hence, the hydroponics system is recommended as a complementary alternative to soil farming.

2016 ◽  
Vol 20 (1) ◽  
pp. 59-64
Author(s):  
MN Islam ◽  
MM Rahman ◽  
MJA Mian ◽  
MH Ali

Leaching loss of nutrients hampers plant growth and contributes to environmental pollution. An experiment was conducted at the net house of Soil Science Department, Bangladesh Agricultural University, Mymensingh during January to May 2009 to find out the leaching loss of N, P, K and S from sandy loam soil. Each pot received 6.67 kg dry soil with an opening at the bottom for collecting leachates. Six treatments were used: T0 = control, T1 = NPKS (120, 25, 60 and 20 kg ha-1), T2 = NPKS (180, 37, 90 and 30 kg ha-1), T3 = NPKS (90, 5, 28 and 17 kg ha-1) + cowdung (2.5 t ha-1), T4 = NPKS (109, 25, 60 and 20 kg ha-1, N as USG) and T5 = as T1 but N applied as foliar spray. Treatments were arranged in a completely randomized design with three replications. Leachates were collected at 15 days interval for determination of NPKS. The total leaching loss of N, P, K and S due to different treatments ranged from 16.00 to 90.21, 0.07 to 0.29, 9.60 to 11.20 and 3.75 to 17.81 kg ha-1, respectively. Application of chemical fertilizer at higher rates resulted in greater loss of nutrients. Integrated fertilizer management with cowdung (T3) minimized such losses. Use of USG also reduced leaching loss of N, P, K and S. The application of cowdung and USG with recommended balanced fertilizer might be useful for minimizing N, P, K and S loss from wetland rice field.Bangladesh Rice j. 2016, 20(1): 59-64


Author(s):  
Triyono Triyono ◽  
Rr. Riyanti ◽  
Veronica Wanniatie

This research was aimed to determine the effect of unripe papaya extract on tenderness, pH value, and water holding capacity (WHC) of laying duck meat. This research was conducted in January 2020 in Laboratory of Animal Production of Animal Husbandary Department and in Laboratory of Agricultural Technology, Faculty of Agriculture, Lampung University. The materials of this research were 20 pieces of laying duck thigh meat. The research used Completely Randomized Design (CRD) with 4 treatments and 5 reaplications, i.e. duck thigh meat marination with 0% of unripe papaya extract (P0), with 10% of unripe papaya extract (P1), with 20% of unripe papaya extract (P2), and with 30% of unripe papaya extract (P3). The observed variables were tenderness, pH value, and WHC of laying duck meat. The obtained data was analyzed by using variance analysis at 5% level of significance, and if the results had significant effect, then were tested further using Least Significant Difference (LSD) test. The result of variance analysis indicated that marination of laying duck meat with different percentage of unripe papaya extract affected on tenderness (P<0,05), but it did not affect on pH value and WHC of laying duck meat. Keywords: Laying duck meat, pH value, Tenderness, Unripe papaya extract, Water Holding Capacity (WHC)


2020 ◽  
Vol 20 (07) ◽  
pp. 16997-17011
Author(s):  
CC Ali ◽  
◽  
TE Ejiofor ◽  
FO Ifeanyieze ◽  
AO Okadi ◽  
...  

The objective of the study was to determine the effect of climate-smart integrated fertilizer management on proximate qualities and lycopene contents of three watermelon (Citrullus lanatus)varieties grown in sandy loam soil. The experiment was conducted at the experimental farm of the Department of Agricultural Education, University of Nigeria, Nsukka between the months of Augustto October 2017cropping season. The experiment was laid out in a split-plot design, with three replications, three main plots (Citrullus lanatus varieties (Sugar baby, Koalack and Charleston grey))and six sub-plots (fertilization treatments). Climate-smart integrated fertilizer considered was combination of Goat manure (GM) and Nitrogen Phosphorus PotassiumNPK15: 15: 15 fertilizer which is regarded as most nutrient-rich fertilizer with climate change mitigation and adaptation potential. The study found that the pH of the watermelon varieties were statistically similar and that Charleston grey treated with 50 kg ha-1NPK + 15 t ha-1GM had the highest interactive effect on pH value which was statistically similar with 100 kg ha-1NPK + 10 t ha-1GM treatment. It was discovered that Koalack variety had the highest moisture contents when treated with 100 kg ha-1NPK + 10 t ha-1GM, crude protein content when treated with 150 kg ha-1NPK + 5 t ha-1GM, crude fibre content when treated with 20 t ha-1GM, ether extract and total soluble solid contents when treated with 50 kg ha-1NPK + 15 t ha-1GM. For the lycopene content, it was found that Sugar baby variety had the highest mean value (0.61g/100g) when compared with Charleston grey and Koalack varieties. Sugar baby variety treated with 20t/ha-1GM had highest (0.89g/100g) interactive effect when compared with other varieties and fertilizer treatments. In conclusion, the proximate qualities and lycopene contents of the three varieties increased with the increase in the amount of GM contents of the fertilizer combinations in sandy loam soil. Climate-smart integrated fertilizer improves the proximate qualities of Koalack variety and the lycopene contents of Sugar baby variety more than in other varieties grown in the same sandy loam soil. Therefore, climate-smart integrated fertilizer is recommended for the production of the identified Citrullus lanatus varieties as a nutrition sensitive production strategy in sandy loam soils by farmers in study area.


Author(s):  
R. Gobinath ◽  
K. P. Patel ◽  
K. V. Ramani ◽  
. Rajkishore ◽  
V. Manasa

A pot culture experiment in the factorial completely randomized design (FRCD) was formulated with the three levels of iron (Fe) @ 0, 20 and 40 mg kg-1 in the iron-deficient Typic Ustochrept sandy loam soil at Anand Agricultural University, Gujarat, India to evaluate and predict the iron uptake, nutrient efficiency and its depletion of in the rhizosphere of efficient and in-efficient chick pea cultivars using mechanistic model NST 3.0. The current investigation was carried out with the four chickpea cultivars namely, Fe-efficient (GG-1 and GAG-735) and Fe-inefficient (ICCC-4 and GJG-305). Plant observations were recorded during three different growth stages viz., 20 DAG, 40 DAG and maturity, respectively. The shoot weight and shoot length of Fe-inefficient varieties (ICCC-4 and GJG-305) well responded to the application of Fe as compared to Fe-efficient varieties (GG-1 and GAG-735) with 20 mg Fe Kg-1 application through FeSO4. Lower dose of 20 mg Fe kg-1 was found equally effective in increasing root length and root radius. Root radius (ro) and initial soil solution concentration of Fe (CLi) were found most sensitive parameters influencing Fe uptake, which was followed by maximum net influx (Imax). In no Fe treatment, increasing r0, CLi by a factor of 2.0 times individually caused increase in Fe uptake by 1.60, 1.45 times, 1.36, 1.53 times, 1.16, 1.15 times and 1.05, 1.25 times, respectively in GG-1, GAG-735, ICCC-4 and GJG-305 varieties of chickpea. While, increasing Imax and Km separately by a factor of 2.0 Fe uptake altered in proportions by 1.03, 0.57 times, 0.93, 0.57 times, 0.73, 0.54 times and 0.69 and 0.48 times, respectively in GG-1, GAG-735, ICCC-4 and GJG-305 varieties of chickpea. The ICCC-4 instead of GG-1 and GAG-735 could be rational choice to grow on Fe deficient soil to get with dense Fe content. On the other hand, Fe-Inefficient varieties had 2 times of higher mean Fe-influx at 40 mg Fe kg-1 application than Fe-Efficient varieties.


2019 ◽  
Vol 12 (4) ◽  
pp. 30
Author(s):  
H. Cândido ◽  
D. Silva

Soil degradation and erosion loss due to inadequate management pose a serious threat to agricultural productivity and contribute to the aggravation of environmental impacts. Soil, vegetative and mechanical practices of soil conservation are being developed to assist in the attenuation of these problems. The present research was carried out with the objective of evaluating the effect of mulching in the conversation of a sandy loam soil in the state of Mato Grosso. The study was developed under field conditions at the Federal University of Mato Grosso, Rondonópolis Campus and a completely randomized design with two treatments, with and without vegetation cover, where soil temperature, spontaneous plant quantification, soil moisture and relative humidity of the soil surface. It was verified that mulching kept the soil with a temperature gradient around two degrees lower than the uncovered treatment, besides reducing the emergence of spontaneous plants in 36 times and raising soil moisture by approximately four degrees, but not had an effect on soil surface moisture. Therefore, the use of mulch is an advantageous practice, which improves the hydrothermal characteristics of the soil and reduces the incidence of spontaneous plants


HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1158b-1158
Author(s):  
James W. Paterson

The effectiveness of nitrogen, lime and mulch on the production of tomatoes (Lycopersicon esculentum Mill.) grown on a coastal plain sandy loam soil was investigated in 1989. Five rates of nitrogen, 0 to 180 kg h a-1 in 45 kg h a-1 increments, were applied to limed and unlimed soil. Each nitrogen treatment was split into bare ground and black plastic mulched plots. The highest total yield of quality tomatoes was produced with 90 kg ha-1 of nitrogen. At all nitrogen rates, total yields of quality tomatoes produced in the limed areas were significantly greater than the crop produced in the unlimed acid areas. Increasing nitrogen above the 90 kg ha-1 rate had no further significant increase on yields in the limed soil; however, the higher rates of nitrogen did significantly depress yields of quality tomatoes in the unlimed acid soil areas. The positive influence of liming was noted in the early, midseason and late harvests as well as in the total yields. Liming also had a positive influence on the size of the quality tomato while mulching had little to no effect on fruit size. Mulching also had only a modest effect on quality fruit yields. Soil test and tissue analysis results will also be discussed.


2017 ◽  
Vol 9 (3) ◽  
pp. 1676-1681
Author(s):  
Yash Thakur ◽  
J. S. Chandel ◽  
Pramod Verma

A field trial was conducted during 2015 and 2016, to study the effect ofgrowth regulators on growth, flowering, yield and fruit quality of strawberry cv. Chandler. The experiment was laid out in completely randomized design with 16 treatments viz.CPPU at 1, 2 and 4 ppm, GA3 at 25, 50 and 75 ppm, Promalin at 2, 4 and 6 ppm, GA4+7 at 5, 10 and15 ppm, NAA at 10, 20 and 30 ppm and control (water spray) and each treatment was replicated thrice. The results revealed that the plants sprayed with 15 ppm GA4+7 two weeks before flowering significantly reported highest plant height (33.43 cm), leaf area (239.70 cm2), number of flowers (31.94), fruit set (87.45 %), number of fruits per plant (29.02), yield (540.01 g/plant), fruit length (53.63 mm) and fruit diameter (37.19 mm) and fruit weight (23.70 g) as compared to control. This treatment resulted in 196.36 % increase in yield and 56.22 %in fruit weight over control. Plants sprayed with 6 ppm promalin also showed significant improvement in vegetative growth, fruit size, yield and fruit quality, which resulted in 137.92 % increase in yield and 51.81 % increase in fruit weight over control. Hence, it is concluded that foliar spray of 15 ppm GA4+7 applied 2 weeks before flowering is beneficial in improving growth, yield and fruit quality of strawberry plants.


2021 ◽  
pp. 1-9
Author(s):  
Landing Jadama ◽  
Pa Tamba Jammeh ◽  
Alhagie K. Cham ◽  
Idrissa Diedhiou

Optimum plant spacing ensures proper growth and development of crops resulting in maximum crop yield and economic use of land. The objective of this study was to evaluate the effects of different planting spacing on the growth and yield of California Wonder Bell Pepper (Capsicum annuum) on sandy loam soil of The Gambia, from January to May 2018. The design used for this experiment was a Randomized Complete Block Design (RCBD) with four treatments (T1: 50 x 50 cm, T2: 50 x 40 cm, T3: 50 x 30 cm and T4: 50 x 20 cm) and three repetitions and the parameter of plant height, stem girth, number of leaves, fruit length, fruit circumference, individual fruit weight, yield per plant, and yield per hectare. The plant spacing had a significant effect on plant height, stem girth and the number of leaves of the growth parameters, whereas for the yield parameters, individual fruit weight, yield per plant and total biomass yield were found significantly in treatments with the highest plant spacing (50 x 50 cm). In conclusion, wider plant spacing (50 x 50 cm) boosts the plants to develop the maximum number of branches and fruits.


2021 ◽  
Vol 21 (no 1) ◽  
Author(s):  
S. Srinivasan ◽  
T. Mathana ◽  
A. Angayarkanni ◽  
A.P. Srinivasa perumal

A pot experiment was conducted at the Department of SS & AC, Annamalai University during February-May, 2019 to find out the effect of different organic nutrient sources on yield attributes and yield of barnyard millet (Echinochloa frumentacea (Roxb.) Link). Millets are still the principal sources of energy, protein, vitamins and minerals for millions of poorest people. Coir pith has been found to an effective substitute for natural peat. Bone meal is a mixture of finely and coarsely ground animal bones and slaughter-house waste products. Panchagavya is an organic formulation with a blend of five products obtained from cow i.e. milk, ghee, curd, dung and urine. The treatments of the experiment were : T1 – Control, T2 –100% RDF, T3 – Coir pith compost @ 10 t ha-1, T4 – Bone meal powder @ 1 t ha-1, T5 – Panchagavya @ 3 % (Foliar spray), T6 –T3 + T4 , T7 – T4 + T5 , T8 – T3 + T5 and T9 – T3 + T4 + T5 . The design of the experiment was completely randomized design (CRD). Among the treatments, application of 100 % RDF (N: P2 O5 : K2 O @ 40:30:50 kg ha-1) (T2 ) recorded the highest number of productive tillers pot-1 of 6.54, ear head plant-1 (4.50), ear head length of 10.11, ear head weight of 30.37 g. grain yield of 166.15 g and straw yield of 306.15 g pot-1. The treatment T2 was on par with T9 .


HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 882B-882
Author(s):  
S.B. Sterrett ◽  
C.P. Savage ◽  
H.E. Hohlt

Tomatoes (Lycopersicon esculentum Mill.) were grown under plastic culture on a Bojac sandy loam soil in 1991, 1992, and 1994 to determine influence of nitrogen rate at planting and water application scheduling by pan evaporation (PAN) on crop yield and fruit size. Marketable yield and percentage of large fruit was significantly increased in 1991, 1992, and 1994 as irrigation application increased from 0.5 to 1.0 or 1.5 PAN (one application per day). Nitrogen applications exceeding 168 kg–ha–1 resulted in lower yield and reduced fruit size in 1992. In 1994 (late planting followed by hot, dry growing season), yield was increased with increasing N to 213 kg–ha–1 with 1.0 PAN, but not influenced by N at 1.5 PAN. Residual soil nitrate concentration was increased with reduced irrigation or increased nitrogen application. Nutrient management plans to address non-point source pollution concerns of EPA will need to reflect crop irrigation needs to maintain yield and fruit size while minimizing nitrate accumulation within the soil profile.


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