Open Access Original Research Article

Enhanced Growth and Yield of Lowland Rice (Oryza sativa L.) with Greenshield Organic-based Fortified Foliar Fertilizer

Jiryk R. Montifalcon, Alminda M. Fernandez

Asian Journal of Soil Science and Plant Nutrition, Page 1-10
DOI: 10.9734/AJSSPN/2017/33267

This study was conducted from December 2015 to March 2016 at the rice field area of the University of Southeastern Philippines, Mabini Campus, Compostela Valley Province. It was conducted to evaluate the bioefficacy of Greenshield Organic-Based Fortified Foliar Fertilizer (GOFFF) on the growth and yield of lowland rice; to determine the best fertilizer combinations for the optimum yield of rice; and to evaluate the economic benefits of using Greenshield Organic-Based Fortified Foliar Fertilizer for rice.

The experiment was laid out in a Randomized Complete Block Design (RCBD) having six treatments and replicated three times. The treatments were: Treatment 1 (Untreated), Treatment 2 (Recommended rate of NPK fertilizer/Ha), Treatment 3 (½ of Recommended NPK/Ha), Treatment 4 (Greenshield Organic-Based Fortified Foliar Fertilizer (GOFFF) at 100 ml/16 li of water), Treatment 5 (½ Recommended NPK + GOFFF, and Treatment 6 Recommended NPK + GOFFF.

The result of the statistical analysis revealed that the agronomic characteristics and yield of Rice (Rc82) were significantly affected by Greenshield Organic-Based Fortified Foliar Fertilizer (GOFFF) at 5% level of significance such as plant height, leaf color, number of tillers, number of productive tiller, number of days to maturity, grains per panicle in 20m2 and weight of 1000 grains and grain yield per hectare.

It was observed that using Greenshield Organic-Based Fortified Foliar Fertilizer (GOFFF) alone enhanced the growth and yield of rice (Rc82) with an ROI of 71.39%. Moreover, T6 Recommended NPK + Greenshield Organic-Based Fortified Foliar Fertilizer (GOFFF) recorded the highest plant height by 24%, leaf color, number of tillers and productive tillers by 50%, number of grains per panicle, weight of 1,000 grains and yield of 4.59 tons/ha. Although, it has the longest time of maturity.

Open Access Original Research Article

Iron Overload in the Root Environment of Rice (Oryza sativa- L) with a Miserable Nutrients Specification

Tarun Saikia, Jinamoni Bhuyan

Asian Journal of Soil Science and Plant Nutrition, Page 1-10
DOI: 10.9734/AJSSPN/2017/33653

In waterlogged soils under low pH, Fe2+ availability increases and may reach toxic levels. The conditions of iron toxicity are quite well established over the World. The physiological effects of Fe2+ within plant with subsequent plants’ nutrients status are well documented in many literatures. Despite our current knowledge of the processes and mechanisms involved, iron toxicity, a function of growth conditions and the cultivar types remains as an important constraint to rice production, together with nutrients deficiency in the regional levels. To screen Fe tolerant cultivars and thus to evaluate the  mechanisms involved in response to excess Fe, experiment was carried out with rice cultivars – Ranjit, Siyal Sali and Mahsuri, grown by developing artificial Fe toxic conditions in the soils of experimental pots applying different Fe2+ concentrations (control- normal soil iron from rice field, +100, +200 and +300 ppm  respectively). The study of plants’ biochemical parameters confirmed the resistance of Mahsuri plants to Fe excess. With steady recovery of neutral pH and better chlorophyll contents, the root and shoot nutrients of Mahsuri were found to be higher compared to the plants of other two varieties when exposed to excess Fe. Except Fe and N in roots and shoots, the excess of Fe caused a negative impact on other nutrients in these vulnerable cultivars. Plants of Ranjit and Siyal Sali seem to be affected directly by Fe toxicity and also by the pseudo Fe toxicity, whereas Mahsuri seems to make use of the exclusion/and or avoidance mechanism to Fe overload.

Open Access Original Research Article

Evaluation of Proportionate Combinations of Indigenous Rice Bran and Mineral Fertilizer for Improved Performance of Tomato (Lycopersicon lycopersicum) under Low Fertile Soil Conditions

P. A. Babajide, T. O. Modupeola, R. O. Yusuf, O. S. Oyatokun, T. S. Gbadamosi

Asian Journal of Soil Science and Plant Nutrition, Page 1-8
DOI: 10.9734/AJSSPN/2017/33768

Under tropical soil conditions, where soils are mostly marginal and deliberate fallowing of farmlands is very uncommon, integration of two or more different fertilizer materials, at pre-determined proportions, may be beneficial to soil quality improvement and enhanced crop productivity. Field experiment was carried out in the year 2015, at the Teaching and Research Farms, Ladoke Akintola University of Technology, Ogbomoso, Nigeria, to determine the complementary effect of organic and inorganic fertilizer at different rates on the performance of tomato, under low fertile soil conditions. Six treatments including the control were used: No fertilizer application, 100% N.P.K, 75% N.P.K + 25% Rice bran, 50% N.P.K +50% Rice bran, 25% N.P.K+ 75% Rice bran and 100% Rice bran arranged in randomized complete block design (RCBD), replicated three times. Data were collected on growth and yield parameters, and analysed using Analysis of variance (ANOVA). Means were separated using Duncan multiple range test (DMRT) at 5% level of probability. Results showed that amended plots significantly enhanced tomato growth, yields and nutrient uptakes higher, compared to the control. Sole application of 100% NPK and Rice bran significantly improved fruit yield by 831.5% and 597.1% respectively, while their combinations significantly enhanced tomato fruit yield ranging from 819% to 1127%.  These indicate that combined application of organic and inorganic fertilizer is better than sole application. Also, significantly prolonged leaf production was observed (which equally promoted prolonged flowering and fruiting), in tomato plants which received Rice bran applications at 50% level and above. Therefore, since there is an increasing awareness nowadays, on the environment friendly benefits of applying organic materials to farmlands, application of either 75% or 100% NPK fertilizer should be totally discouraged. Hence, 75% Rice Bran + 25% NPK could be recommended or alternatively 50% Rice Bran + 50% NPK, for tomato production in the study area. This will improve soil organic matter content, reduce soil chemical fertilizer loads or inputs and alleviate the residual effects of synthetic fertilizer, for improved soil quality and tomato production, in the study area.

Open Access Original Research Article

A Comparative Analysis of Ginger Cultivation Methods in Kurmin-Jatau, District of Jaba Local Government Area, Kaduna State, Nigeria

Samaila Alhassan Sati, Gideon Bala

Asian Journal of Soil Science and Plant Nutrition, Page 1-18
DOI: 10.9734/AJSSPN/2017/34183

Aim: The aim of this study was to evaluate the Flatbed, Mound or Raised and Ridges tillage practices to identify the best with relatively higher yield of ginger but with minimum soil erosion problems.

Place and Duration of Study: The study was carried out in Kurmin-Jatau, Jaba Local Government Area, Kaduna State, Nigeria for a period of ten months.

Study Design: The experimental design took three forms; slope measurement to attain the desired slope on the farms, obtaining data on eroded materials, and generating data on plant growth/features.

Methodology: The three tillage methods (Flatbed, Mound, and Raised) were prepared to determine yield and erosion problems. Data on the study were obtained from direct measurement on the experimental farms, interview and questionnaire methods, as well as related literature.

Results: The Flatbed tillage method encouraged growth of almost all the plant attributes, most especially the number of tillers which is the major determinant of ginger yield, followed by Ridges and the least was in Mounds tillage method. Statistical analysis of the data generated on this showed a significant relationship between the variables (Fc=8.84>Ft=3.89;; fd=12 and 2). There was also appreciable difference in run-off and eroded soil particles, with the highest value recorded in the Mounds tillage practice followed by the Ridges and then the Flatbed tillage practice. Using analysis of variance, a significant relationship was established between the three tillage methods and the quantity of soil materials carried by run-off (Fc=7.58> Ft=3.55;  =0.05; df1=2 and df2=18). Increased rhizome yield of ginger crop and amount of soil eroded particles was recorded on Flatbed tillage system as compared with Mounds and Ridges.

Conclusion: Flatbed method of cultivating ginger crop has been shown to still be promising, but farmers should increase their knowledge on soil erosion management and use of other farming inputs and technologies.

Open Access Original Research Article

Responses of Early Growth of Maize (Zea mays L,) to Foliar Fertilizers Application in Hydroponics Environment

Chikodinaka N. Okereke, Zsolt Csintalan, Chinenye E. Okereke

Asian Journal of Soil Science and Plant Nutrition, Page 1-9
DOI: 10.9734/AJSSPN/2017/33573

The present study investigates the effect of foliar fertilization on the yield and biomass of maize seedlings. Maize seedlings were grown in a nutrient solution containing macro- and micro-nutrients and thereafter, fertilizer solutions were applied on leaf surface under high yield potential plant growing chamber conditions using the hydroponics techniques. Different combinations of root and foliar nutrient supply treatments were analysed. In the high series, nutrient supply treatments with a high concentration of the macro- and micro-nutrients with two series (H1 and H2); and the low nutrient solution with a low concentration of the macro- and micro-nutrients with four series L1, L2, L3, and L4. H1 and L1 were non-foliar fertilized. H2, L2 and L3 were sprayed with the fertilizer daily and L4 was sprayed with the fertilizer once in a week. The treatment lasted for three weeks.H1and H2 with optimal root NPK and the low series nutrient supply treatments L1, L2, L3, and L4 with one-tenth of the optimal root NPK supply was used. The results were analyzed with one-way ANOVA and Tukey post-hoc test. Foliar NPK application with the low and high nutrients solution gave the highest shoot dry biomass and N and P uptake, and lateral root formation compared to the non-fertilized plants. Under field conditions, foliar spraying of NPK high-P significantly increased the shoot dry biomass of maize compared with the treatment without P in all cases. Foliar fertilizers with high concentrations of NPK improved maize yield suggesting that appropriate management of P and N resources is a prerequisite for a sustainable maize yield.