scholarly journals Effect of agronomic biofortification on growth, yield, uptake and quality characters of maize (Zea mays .L) through integrated management practices under North-eastern region of Tamil Nadu, India

2021 ◽  
Vol 13 (1) ◽  
pp. 278-286
Author(s):  
Augustine R. ◽  
D. Kalyanasundaram
Keyword(s):  
Zea Mays ◽  
Tamil Nadu ◽  
Management Practices ◽  
Zea Mays L ◽  
Foliar Application ◽  
Mineral Fertilizers ◽  
Eastern Region ◽  
Yield Attributes ◽  
North Eastern ◽  
Agronomic Biofortification

Agronomic biofortification increases the concentration of target mineral in edible portions of crops by the use of mineral fertilizers to increase dietary intake of target minerals. Among these iron and zinc deficiencies in human nutrition are noticed in countries where maize is the staple food. The objective of this study was to evaluate agronomic biofortification performance in association with Integrated Nutrient Management in maize (Zea mays .L). The study was conducted under field conditions in Chinnakandiankuppam village, Vriddhachalam Taluk, in the North-eastern region of Tamil Nadu state, India of Kharif 2020 season. Two hybrids in main plots (M1 – Non biofortified and M2 – Biofortified) were combined with six treatments in sub-plots (100 % RDF through NPK (S1), 100 % RDF through FYM (S2), 50% RDF through NPK + 50% through FYM (S3) as soil application, S1+ Zinc + Iron (S4), S2 +Zinc + Iron (S5) and S3 + Zinc + Iron (S6) as foliar application with evaluations were carried out in wet season period of the year. Application of 50 percent RDF through NPK + 50 percent RDF through FYM with Fe, Zn, foliar applications (S6) was the most efficient agronomic biofortification practice for growth attributes, yield and yield attributes, nutrient uptake, and quality parameters for the maize cropping system under the irrigated condition of the northeastern zone of Tamilnadu State, India. 

scholarly journals Agronomic Biofortification through Integrated Nutrient Management on Maize (Zea mays L.) Hybrids

2021 ◽  
Author(s):  
R. Augustine ◽  
V. Imayavaramban
Keyword(s):  
Zea Mays ◽  
Tamil Nadu ◽  
Nutrient Management ◽  
Zea Mays L ◽  
Direct Method ◽  
Growth And Yield ◽  
Nutrient Level ◽  
Integrated Nutrient Management ◽  
Yield Attributes ◽  
Agronomic Biofortification

Background: Supplement of balanced nutrition is required for the growth and development of crops and humans, particularly essential amino acids, vitamins and minerals. The application of mineral micronutrient fertilizers to soil or plant leaves to increase micronutrient content in edible parts of crop. Therefore, this study is focused to evaluate the effect of agronomic biofortification with different nutrient levels on maize. Methods: A field experiment was conducted on sandy clayey loam soil during the Rabi season of 2020-21 Perambalur, Tamil Nadu to study the effect of agronomic biofortification through integrated nutrient management for improving maize (Zea mays L.) yield and quality under Cauvery delta condition. Two hybrids in main-plots both, QPM and non-QPM were sown by direct method on ridges at a spacing of 60 x 20 cm under split plot design (SPD) with 6 treatments of nutrient management in sub-plot combination under three replications. Result: The results revealed that the nutrient level treatments containing 50% RDF through NPK + 50% RDF through FYM with Fe and Zn as foliar application @0.5% conc led to highest growth and yield attributes, grain yield (8.52 tha-1) and stover yield (10.35 tha-1) and also resulted in maximum crude protein content (14.93%), starch content (63.85 mg g-1), Fe (36.25 mg kg-1) and Zn (29.35 mg kg-1) in maize grain. It was observed that Agronomic biofortification through integrated nutrient management enhanced the vegetative growth and yield components of non-QPM hybrid, whereas it improved the grain quality content of the QPM hybrid.

scholarly journals Effect of Nitrogen and Foliar Application of Naphthalene Acetic Acid (NAA) on Growth and Yield of Baby corn (Zea mays L.)

2021 ◽  
pp. 55-61
Author(s):  
Kagitha Sudharshan Rao ◽  
Shikha Singh ◽  
K. Ravi Chandra ◽  
Joy Dawson
Keyword(s):  
Zea Mays ◽  
Acetic Acid ◽  
Zea Mays L ◽  
Foliar Application ◽  
Growth And Yield ◽  
Naphthalene Acetic Acid ◽  
Naphthaleneacetic Acid ◽  
Research Station ◽  
Area Index ◽  
Yield Attributes

The experiment entitled effect of nitrogen and foliar application of naphthaleneacetic acid on growth and yield of Baby corn (Zea mays L.) was conducted during the Rabi season of 2020 at the Fodder Production Farm of Livestock Research Station, Sri Venkateswara Veterinary University, Lam Farm, Guntur. Andhra Pradesh. The experiment was laid out in Randomized Block Design with 10treatments and each replicated thrice. Treatments consisted of a combination of three levels of nitrogen (60.0, 90.0, 120.0kg/ha) and three levels of naphthalene acetic acid (20,40,60 ppm). It was found that an application of 120 kg Nitrogen/ha as basal along with foliar spray of 40 ppm naphthalene acetic acid at 25 and 35 days after sowing, was the most suitable treatment for obtaining growth and yield attributes such as plant height  (177.60 cm), number of leaves (11.33), plant dry weight (113.58g/plant), chlorophyll content (68.43), Leaf Area Index (8.65) and green fodder yield (20333 kg/ha) with net return (83,701.88 Rs/ha) and B:C ratio (1.68). On the basis of one-year experimentation it is concluded that the application of 120 kg Nitrogen/ha + 40 ppm naphthalene acetic acid, on baby corn improved cob yield by 25 % and was found more productive than the recommended dose of fertilizer.

Production economics of rabi maize (Zea mays. L.) under different weed management practices and residual soil fertility conditions

2021 ◽  
Vol 16 (2) ◽  
pp. 215-218
Author(s):  
Banashri Lodh ◽  
S.N. Jena ◽  
R.K. Paikaray ◽  
Manoranjan Satapathy ◽  
Bishnupriya Patra ◽  
...  
Keyword(s):  
Zea Mays ◽  
Soil Fertility ◽  
Weed Management ◽  
Management Practices ◽  
Zea Mays L ◽  
Production Economics ◽  
Residual Soil

Assessment of nitrification and urease inhibitors on nitrate leaching in corn (Zea mays L.)

2019 ◽  
Vol 99 (1) ◽  
pp. 80-91 ◽  
Author(s):  
Amy A. Pawlick ◽  
Claudia Wagner-Riddle ◽  
Gary W. Parkin ◽  
Aaron A. Berg
Keyword(s):  
Zea Mays ◽  
Soil Water ◽  
Management Practices ◽  
Zea Mays L ◽  
Root Zone ◽  
Fertilizer Application ◽  
Large Field ◽  
N Leaching ◽  
Urease Inhibitors ◽  
Eddy Covariance Method

Agricultural ecosystems are one of the largest global contributors to nitrate (NO3−) contamination of surface- and groundwater through fertilizer application. Improved fertilizer practices are needed to manage crop nutrient supply in corn (Zea mays L.) while minimizing impacts to clean water reserves. The goal of this study was to compare current nitrogen (N) fertilizer practices (urea at planting) with “packages” of improved management practices (a combination of right timing and product) that farmers potentially use. We conducted measurements in a continuous corn system from November 2015 to May 2017 at a large field scale (four 4 ha plots). Nitrate concentration was measured below the root zone and drainage estimated using a soil water budget approach in which evapotranspiration was measured using the eddy covariance method. The objective was to compare NO3−-N leaching from fields receiving urea vs. urea + combination of nitrification and urease inhibitors (NUI) fertilizer applications at planting, urea–ammonium nitrate (UAN) vs. UAN + NUI applied at sidedress, and a combination of these practices: urea + NUI at planting vs. UAN at sidedress. Drainage was only significant in the non-growing season. Neither fertilizer products applied with NUI at planting or sidedress proved to significantly reduce NO3−-N leaching. The combination of delaying fertilization to sidedress and applying UAN significantly reduced the soil water NO3−-N concentration compared with urea + NUI at planting (mean of 5.2 vs. 6.7 mg L−1) but only in 2015–2016. Based on these results, applying UAN at sidedress is recommended, although additional study years are needed to confirm those results.

scholarly journals Application of Multi-Component Conditioner with Clinoptilolite and Ascophyllum nodosum Extract for Improving Soil Properties and Zea mays L. Growth and Yield

Agronomy ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2005
Author(s):  
Jacek Długosz ◽  
Anna Piotrowska-Długosz ◽  
Karol Kotwica ◽  
Ewelina Przybyszewska
Keyword(s):  
Zea Mays ◽  
Soil Properties ◽  
Management Practices ◽  
Zea Mays L ◽  
Growth And Yield ◽  
Water Capacity ◽  
Available Water ◽  
Available Water Capacity ◽  
Study Sites ◽  
Plant Properties

The application of various conditioners in agriculture is one of the management practices used to improve soil quality and plant growth and development. The aim of this study was to assess the effect of a multi-component conditioner on the selected soil properties and maize (Zea mays L.) growth and yield. The effect of a conditioner on a set of soil properties and maize growth and yield was studied in one-year experiments carried out at three study sites, which were under a conventional tillage system. All of the study sites were located on farms in three geographic mezoregions in the Kuyavian-Pomeranian Region (Midwestern Poland). The studied soils were Haplic Luvisol (Janocin and Kobylnica) and Albic Luvisols (Krukówko) that were composed of sandy loam. A one-way analysis of variance (ANOVA) was used to determine the effect of a conditioner Solactiv on the soil and plant properties. The conditioner significantly affected the soil enzyme activities such as dehydrogenase (DHA), fluorescein sodium salt hydrolysis level (FDAH) and carboxymethylcellulose cellulase (CMC—cellulase); wherein the last one increased by about 16–20%. The application of Solactiv also increased the available K content (about 11%) but not the content of the microbial biomass C and N. Total porosity (TP), which was significantly higher in the soil treated with conditioner than in the control soils, increased the available water capacity (AWC) (about 2.2%). The higher AWC in the treated soil indicated the greater contribution of the mesopores in the TP (about 4%). A significantly higher readily available water capacity (RAWC) and small pores available water capacity (SAWC) was determined in the treated soils compared to the controls. Of the plant properties, only plant height, fresh cob biomass (BBCH 87–89) and fresh plant biomass (BBCH 84–85) were significantly increased by the conditioner. The application of Solactiv is considered to be a promising approach for developing sustainable agriculture by improving the soil’s biological activity and water-related properties.

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