Response of Zinc Application on Aerobic Rice in Inceptisols of Raigarh District in Chhattisgarh Plains (original) (raw)
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2016
The field experiment was conducted at the Soil Science Field Laboratory of Bangladesh Agricultural University, Mymensingh during Aman season of 2014 to study the influence of different levels of zinc applied from two sources on the yield and Zn uptake of BRRI dhan49. The soil was silt loam in texture having pH 6.8, organic matter 2.72%, total N 0.151 %, available P 4.00 mg kg-1 , available K 0.08 cmol kg-1 , available S 15.9 mg kg-1 and available Zn 0.90 mg kg-1. The experiment was laid out in a randomized complete block design with three replications. There were seven treatments with different rates of Zn viz. T 1 : Zn0, T 2 : Zn1 as ZnO, T 3 : Zn2 as ZnO, T 4 : Zn3 as ZnO, T 5 : Zn1 as ZnSO 4 , T 6 : Zn2 as ZnSO 4, and T 7 : Zn3 as ZnSO 4 where 0, 1, 2 and 3 represent the rate of Zn in kg ha-1. Recommended doses of N, P, K and S fertilizers were added to all plots and they were used in the form of urea, TSP, MoP and gypsum, respectively. Addition of Zn had significant effect on the grain and straw yields of BRRI dhan49. Application of ZnO at 3 kg ha-1 (T 4) produced the highest grain (5294 kg ha-1) and straw (6567 kg ha-1) yields. The control treatment (Zn0) produced the lowest grain (3183 kg ha-1) and straw (3614 kg ha-1) yields. The other plant parameters such as panicle length, tillers hill-1 and grains panicle-1 , but not plant height and 1000-grain weight were also influenced significantly by the application of zinc. Zn concentration and uptake by BRRI dhan49 were also influenced by the addition of Zn. The total Zn uptake by the BRRI dhan49 varied from 173 g ha-1 in control to 353 g ha-1 in T 4. Thus, results suggest that application of ZnO @ 3 kg ha-1 along with NPKS at recommended rates needs to be applied for achieving higher yield of aman rice in Old Brahmaputra Floodplain Soil.
EFFECT OF ZINC ON N, P, K AND Zn CONCENTRATION, UPTAKE, AND Zn EFFICIENCY IN RICE
Octa Journal of Biosciences , 2019
An experiment was carried out in Gazipur, Bangladesh to investigate the response of agronomical, physiological, apparent recovery, utilization zinc use efficiency, zinc concentration in endosperm and yield of rice to zinc. The design of experiment was Randomized Complete Block with three replications included zinc fertilizer level (0, 10 and 20 kg Zn ha-1 as H2O5SZn) and three rice varieties BRRIdhan56, BRRIdhan57 and BRRIdhan62. 10 kg Zn ha-1significantly increased the yield and yield contributing characters in BRRIdhan56 and BRRIdhan57 and 20 kg Zn ha-1 in BRRI dhan 62.The highest Zn content in endosperm (39.85 ppm) was recorded at 20 kg Zn ha-1 in BRRIdhan62 and the lowest (16.27 ppm) at 0 kg Zn ha-1 in BRRIdhan57. The highest agronomic, physiological, apparent recovery and utilization efficiency were recorded at 10 kg Znha-1 and the lowest at 20 kg Znha-1. It was revealed that the rice varieties BRRIdhan56, BRRIdhan57 responded to the application of 10 kg Zn ha-1, while BRRIdhan62 to 20 kg Znha-1. So, to obtain the highest yield to ensure satisfactory zinc content in BRRIdhan56, BRRIdhan57 with the most zinc use efficiency and avoid of environmental pollution, use of 10 kg Znha-1 while 20 kg Zn ha-1 toBRRIdhan62.
International Journal of Chemical Studies, 2017
Field experiments were conducted in the major rice growing tracts having varied soil Zn status to study the effect of Zn fertilization in irrigated rice. The treatments consisted of six levels of Zn (0 1.25, 2.50, 5.00, 7.50 and 10.0 kg ha) in a Randomized block design. The results revealed that the growth and yield were higher in location 4 where the soil Zn content was minimum (0.87 mg kg ), compared to locations 6 to 12 where the soil Zn content was comparatively high (0.98 to 2.99 mg kg ). Averaged for all locations, the application of Zn @ 7.5 kg ha recorded significantly the highest yield of grain (6.81 t ha) and straw (8.09 t ha). Hence, application of Zn significantly increased the growth and yield of rice in Zn deficient soils, while higher Zn levels showed a decline or no response in soils having high zinc status.
Field experiments were carried out in 2011 and 2012 at the Instructional Cum Research Farm of Assam Agricultural University, Jorhat, Assam, to find out the effect of different levels of zinc (0, 5, 10, 15, 20, 25 and 30 kg Zn SO 4 ha-1) on yield, economics and Zn uptake by rice. The results revealed that the rice responded significantly to graded doses of zinc application. The highest grain (4.59 t ha-1) and straw yield (6.64 t ha-1) was recorded at 25 kg ZnSO 4 ha-1
The Indian Journal of Agricultural Sciences
Based on our findings, it can be concluded that application of Zn in transplanted rice is essential to harvest profitable yield under acidic soils of NEH region of India. Combined application (soil and foliar) was more effective instead of soil or foliar application alone. Successive yield increment of rice was noticed up to the application of Zn 7.5 kg/ha + foliar spray of Zn @0.5% at panicle initiation and booting stages. Thereafter productivity of rice slightly declined with increases of Zn doses in acidic soils. The application Zn @7.5 kg/ha + foliar spray of Zn @0.5% significantly improved yield attributing parameters of rice over control. Among the Zn nutrition treatments, application of Zn @7.5 kg/ha + foliar spray of Zn @0.5% registered 4.5% higher grain yield over its soil application. With regards to the soil biological properties successive increase of Zn doses improved the soil biological properties up to the application of Zn @10 kg/ha + foliar spray of Zn @0.5%. Howeve...
Indian Journal of Agronomy, 2015
In the present investigation, 26 rice (Oryza sativa L.) cultivars viz., some locals, aromatics, high yielding varieties (HYVs) and hybrids were evaluated for yield efficiency, Zn content in grains and also Zn recovery efficiency in a strip plot design during the rainy (kharif) season for the consecutive 2 years (2009 and 2010) under varied Zn application practices. Rice cultivars differed significantly in their yield and native Zn contents as well as recovery of applied Zn allocation in grains, straw and roots. Grain and straw yields as well as harvest index of different cultivars showed wide variations both with and without Zn applications. On an average, grain yields of different rice cultivars increased by 29 and 22% with soil + foliar and only soil application of Zn, respectively. HYVs showed highest yield efficiency followed by hybrid, aromatic and local cultivars, irrespective of methods of Zn fertilization. The content of native Zn in whole rice grain was the highest in aroma...
International Journal of Experimental Research and Review, 2024
Cereal crops are low in micronutrients primarily due to Iron and Zinc deficiency in soil. Iron, being the cofactor of various enzymes, performs basic functions in the human body, while its absence causes anaemia. Symptoms of Zn-deficiency appearing in the human body includes retarded growth, hypogonadism, immune dysfunction and cognitive impairment. In rice plants, their deficiency results in stunted growth and poor plant development, leading to yield reduction. Consumption of milled rice containing very low levels of iron and zinc, is one of the principal reasons for widespread malnutrition among rice consumers. Health of millions of people around the world, including India, is directly or indirectly affected due to ‘Hidden Hunger’ or ‘Malnutrition’ of iron and zinc. The current study was conducted in the summer season of 2022 at the Post Graduate Research Farm, M.S. Swaminathan School of Agriculture, comprising 8 treatments of zinc (foliar and basal) applications on rice. Influence of these treatments on grain and straw yield of rice was ascertained by measuring Pearson correlation coefficient and different multivariate tests viz., Multiple Regression, Multilayer Perceptron Neural Analysis (MPN) and Principal Component Analysis (PCA), which indicated that grain zinc and iron content, was highly influenced by the zinc application. Analysis of generated data indicated that basal application of 5 kg Zn ha−1 along with foliar application of 0.25% Zn at maximum tillering and at booting stage produced the highest grain yield (6.80 t ha-1) and superior outcomes on different yield attributes, nutrient uptake and straw yield of hybrid rice as compared to other treatments, (MARVEL 1011) in the soil of Southern Odisha.
Effect of Soil Application of Zinc on Growth, Yield and Zinc Concentration in Rice Varieties
European Journal of Agriculture and Food Sciences, 2021
Zinc (Zn) deficiency is widespread nutrient disorder in lowland rice growing areas in Asia, especially in Bangladesh. Intensive cropping with modern varieties causes depletion of inherent nutrient reserves in soils. The application of Zn fertilizers results in higher crop productivity and increases Zn concentration in crops. A field experiment was conducted to evaluate the effect of Zn application on growth, yield, and grain-Zn concentration in eight varieties of rice. The experiment was laid out in a split plot design with a distribution of Zn rates (0 kg ha-1 and 3 kg ha-1 from ZnO) to the main plots and rice varieties (BRRI dhan49, BRRI dhan52, BRRI dhan56, BRRI dhan57, Kalizira, Biroin, Gainja and Khirshapath) to the sub-plots. Zinc application improved effective tillers hill-1, grains panicle-1 and 1000-grain weight which impacted the grain yield of rice. Among the eight rice varieties, a significant increase of grain yield was recorded in BRRI dhan49, BRRI dhan52, BRRI dhan56 ...
Abstract: Zinc (Zn) is essential micronutrient for plants, animals and humans. Zn deficiency is widely spread in paddy soils of Pakistan, and has negative impact of national rice production. A field experiment was conducted at the research area of the Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad to compare rice (Oryza sativa L.) yield and nutrients components i.e., nitrogen (N), phosphorus (P), potassium (K) and Zn, of paddy and straw in response to Zinc sulfate (ZnSO4.H2O), Zinc sulfate heptahydrate (ZnSO4.7H2O), Zn-ethylene diamine tetraacetate (Zn-EDTA) and zinc oxide (ZnO) as Zn sources which were either incorporated into the soil or applied as foliar spray 14 days after rice transplantation (DAT). Zn application significantly increased the Chlorophyll contents, tillers m–2, total biomass and paddy yield, as well as the Zn concentration in the grain and the straw, except P content in the paddy and straw. Zn-EDTA incorporated in soil (10.0 kg ha–1) resulted in greater values for these parameters as compared to other sources of Zn application. Among the method of Zn application, soil application resulted in higher yield, biomass, N and K contents in the grain and straw. Foliar application caused greater P concentration in both grain and straw, however, chlorophyll, K contents in paddy remained unaffected by method of Zn application. Zn-EDTA proved to be the most efficient source of Zn for rice production. Key words: Foliar application, rice, micronutrients, zinc
Screening of Rice Cultivars for their Zinc Biofortification Potential in Inceptisols
Twenty six rice cultivars were evaluated in field experiment for their native zinc (Zn) contents as well as response to Zn applied through soil (20 kg Zn ha-1) with or without foliar spraying (0.5% ZnSO 4 .7H 2 O solution). Results revealed that increased harvest index (HI) of rice also corroborated with higher Zn content in grains upon its basal application as well as foliar spraying. The concentration of native Zn in rice grains was higher in aromatics (27.8 mg kg-1) followed by locals (26.3 mg kg-1), HYVs (23.0 mg kg-1) and hybrids (22.0 mg kg-1). Foliar application of Zn was effective than soil application regarding Zn-biofortification of rice. Two foliar spraying of Zn along with basal application increased the grain and straw Zn concentration up to two to three folds. Transfer coefficient of Zn from shoot to grains, on the other hand, recorded an increase with Zn application in hybrids and locals but decreased in HYVs and aromatic cultivars. Zinc efficiency was higher in aromatic cultivars followed by HYVs, hybrids and locals. Transfer coefficient of Zn within the rice cultivars might be related to their physiological activities, which possibly reduced the translocation of Zn from shoot to grains in HYVs and aromatic cultivars. Increased Zn efficiency of aromatic cultivar might be related to its adaptive mechanisms to tolerate Zn deficiency stress.