Effects of Fertilization Ratios and Frequencies on the Growth and Nutrient Uptake of Magnolia wufengensis (Magnoliaceae)

Through this study, the most suitable fertilization ratio, amount and frequency were determined, providing a scientific reference for further fertilization management for Magnolia wufengensis (Magnoliaceae) seedlings. Fertilization is an important cultivation and management measure to maintain forest seedling health and rapid growth. However, improper fertilization can also have unexpected effects: inhibiting seedling growth, increasing the cost of production and contaminating the environment. Thus, to explore the most suitable fertilization treatment for Magnolia wufengensis growth, one-year-old Magnolia wufengensis seedlings and the orthogonal design method were used in this study. Three different fertilization frequencies were used combined with 9 NPK ratios. The growth index, chlorophyll content, nutrient content in tissues, nutrient transport efficiency, nutrient uptake, and soil properties were analyzed. Fertilization can increase chlorophyll content, promoting the vegetative growth and biomass accumulation of Magnolia wufengensis. Fertilization reduced the proportion of root biomass to whole plant biomass, resulting in an increase in stem biomass with little effect on leaf biomass. Additionally, fertilization also increased the proportion of N in roots, P in stems and K in leaves. Under fertilization, the K transport efficiency was higher than that of N and P. Furthermore, there was a positive correlation between the nutrient use efficiencies of N and K. Overall, the effects of six fertilizer applications were much better than those of four and eight fertilizer applications on the promotion of vegetative growth, biomass and nutrient accumulation, nutrient uptake and transport efficiency. The results showed that six fertilizer applications with an NPK ratio of 3:2:1 as follows: N application at 480 mg/plant, P application at 320 mg/plant, and K application at 160 mg/plant was the most suitable fertilization method for plant growth.

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Effect of Zn and B on the Growth and Nutrient Uptake in Groundnut

Current Journal of Applied Science and Technology ◽

10.9734/cjast/2020/v39i130475 ◽

2020 ◽

pp. 1-10

Author(s):

Ramprosad Nandi ◽

Hasim Reja ◽

Nitin Chatterjee ◽

Animesh Ghosh Bag ◽

Gora Chand Hazra

Keyword(s):

Nutrient Uptake ◽

Leaf Area ◽

Chlorophyll Content ◽

Plant Biomass ◽

Maximum Yield ◽

Foliar Spray ◽

Growth Yield ◽

Nutrient Concentrations ◽

Growth Stages ◽

Flower Initiation

Aims: To investigate the effect of combination between foliar zinc and boron on groundnut growth, yield, nutrient uptake and its accumulation in pods. Study Design: Completely random design (CRD). Place and Duration of Study: Bidhan Chandra Krishi Viswavidyalaya, Nadia, West Bengal, India during 2016. Methodology: The pot experiment was comprised of three levels of Zn (0, 0.5 and 0.75% Zn), three levels of B (0, 0.3 and 0.45% B) and their combinations. The treatments were replicated thrice. Zn and B were applied through foliar spray twice at vegetative and flower initiation stage. Chlorophyll content, leaf area, root–shoot dry biomass, plant height, nutrient uptake and nutrient concentrations in pods were studied. Results: Foliar spray of Zn and B jointly increased the leaf area to the tune of 55% and 29% at flowering and pod formation stages, respectively. Despite sole application of B and Zn increased the leaf chlorophyll content in groundnut; the combined applications were much more prominent. Moreover, lower level of Zn combined with higher level of B significantly (p<0.05) had higher uptake of N (18.8%), P (11.5%) and K (5.9%) over higher level of sole Zn application. The improved biomass accumulation of groundnut amplified the efficient utilization of primary nutrients and resulted in higher nutrient uptake as well as their concentration in pods. Groundnut when sprayed with elevated doses of Zn and B produced the maximum yield (30.8 g/plant). Conclusion: Spraying of Zn and B increased plant biomass, leaf area, chlorophyll content noticeably and with the increase in concentration of Zn and B in spray, the increment became quite intense. The combined spray of Zn and B at critical growth stages promoted better growth and productivity of groundnut.

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Effects of Chinese Medicine Residue Vermicompost Application on Pakchoi Yield and Nutrient Content

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1073-1076.689 ◽

2014 ◽

Vol 1073-1076 ◽

pp. 689-692

Author(s):

Yu Wei Wang ◽

Dong Wei Yang ◽

Yi Hang Duan ◽

Li Juan Yang ◽

Yao Jing Wang

Keyword(s):

Sustainable Development ◽

Chinese Medicine ◽

Nutrient Uptake ◽

Chlorophyll Content ◽

Nutrient Content ◽

Environment Friendly ◽

The Sustainable Development ◽

Pot Experiments

In this study, we conducted a series of pot experiments to examine the effect of Chinese medicine residue vermicompost on yield and nutrient content of pakchoi. Vermicompost was proved to be effective in increasing yield and nutrient uptake by the results. The study showed that half vermicompost and half fertilizer works best, 9.86% higher than single fertilizer, with NPK content increased by 3.85%, 7.69% and 11.48%. In addition, the application of vermicompost improved the chlorophyll content of pakchoi. The study indicated that vermicompost, as an environment-friendly fertilizer, has great potential to assure the sustainable development of agriculture.

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Seasonal nutrient uptake of plant biomass in a constructed wetland treating piggery wastewater effluent

Water Science & Technology ◽

10.2166/wst.2013.002 ◽

2013 ◽

Vol 67 (6) ◽

pp. 1317-1323 ◽

Cited By ~ 13

Author(s):

S. Y. Lee ◽

M. C. Maniquiz ◽

J. Y. Choi ◽

S. M. Jeong ◽

L. H. Kim

Keyword(s):

Nutrient Uptake ◽

Constructed Wetland ◽

Nutrient Removal ◽

Plant Biomass ◽

Treatment Plant ◽

Nutrient Content ◽

Surface Flow ◽

Temperate Climate ◽

Piggery Wastewater ◽

Concentration Changes

The surface-flow constructed wetland (CW) located in Nonsan City, South Korea, and constructed as the final stage of a piggery wastewater treatment plant that aims to treat high nutrient content effluent during dry days and stormwater runoff during wet days was monitored from October 2008 to November 2011. This research investigated the seasonal nutrient uptake of plant biomass in the CW and nutrient concentration changes in each treatment region under monsoon and temperate climate conditions. Results showed that the mean total nitrogen removal during summer (June to August) was higher by 13% than in spring (March to May), while total phosphorus removal was higher by 22% in fall (September to November) than in winter (December to February). All plants in the CW reached their maximum biomass coverage and weight in summer and minimum growth in winter. The highest N and P content in plants occurred in September with 583.2 g/m2 and August with 62.0 g/m2, respectively. Based on the results, it is recommended that the harvesting of plants should be conducted during the time of the peak nutrient uptake and before the plants release the nutrient content back to the CW. The dependence of nutrient removal efficiency on plants is not so significant. In order to increase the nutrient removal rate by plant uptake, it is suggested that the treatment regions in the CW be covered by plants.

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Efficiency of Recycled Biogas Digestates as Phosphorus Fertilizers for Maize

Agriculture ◽

10.3390/agriculture11060553 ◽

2021 ◽

Vol 11 (6) ◽

pp. 553

Author(s):

Inga-Mareike Bach ◽

Lisa Essich ◽

Torsten Müller

Keyword(s):

Biomass Production ◽

Plant Biomass ◽

Nutrient Content ◽

Phosphorus Concentration ◽

Available Phosphorus ◽

Phosphorus Fertilizers ◽

Future Supply ◽

Application Techniques ◽

Phosphorus Recycling ◽

Fertilizing Effect

Despite phosphorus resources on Earth being limited, over fertilization in many agricultural situations causes significant resource consumption. Phosphorus-recycling within agricultural production can reduce global dilution into the environment and is thus essential to secure sustainable future supply. This study investigated the fertilization efficacy of phosphorus fertilizers recycled from biogas digestates in maize shoots grown under controlled greenhouse conditions, in two soils, in a pot experiment. Variables investigated were plant-available phosphorus in soil, plant biomass production, and concentration of phosphorus, calcium, and magnesium in shoots. Soils were treated with three different fertilizer fractions, separated from biogas digestates, at equivalent phosphorus concentrations, using different combinations and application techniques, isolated or in combination, and compared to triple superphosphate (TSP) as a reference. One of the fractions (P-Salt) had effects on biomass production and plant phosphorus concentration equivalent to TSP in agricultural surface soil. In the second soil (with less active soil life and nutrient content), equivalence to TSP was achieved with combinations of two recycled fractions (P-Salt and dried solids). The enhancement of the phosphorus fertilizing effect by the solids was synergistic, indicating that the solids had a soil conditioning effect. The results show that biogas digestates are a valuable source for phosphorus recycling of fractions that have equivalent or even superior fertilizing properties compared to TSP.

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A Meta-Analytical Approach on Arbuscular Mycorrhizal Fungi Inoculation Efficiency on Plant Growth and Nutrient Uptake

Agriculture ◽

10.3390/agriculture10090370 ◽

2020 ◽

Vol 10 (9) ◽

pp. 370

Author(s):

Murugesan Chandrasekaran

Keyword(s):

Plant Growth ◽

Arbuscular Mycorrhizal Fungi ◽

Nutrient Uptake ◽

Mycorrhizal Fungi ◽

Host Plants ◽

Plant Biomass ◽

Meta Analysis ◽

Arbuscular Mycorrhizal ◽

Growth Responses ◽

Mycorrhizal Plants

Arbuscular mycorrhizal fungi (AMF) are obligate symbionts of higher plants which increase the growth and nutrient uptake of host plants. The primary objective was initiated based on analyzing the enormity of optimal effects upon AMF inoculation in a comparative bias between mycorrhizal and non-mycorrhizal plants stipulated on plant biomass and nutrient uptake. Consequently, in accomplishing the above-mentioned objective a vast literature was collected, analyzed, and evaluated to establish a weighted meta-analysis irrespective of AMF species, plant species, family and functional group, and experimental conditions in the context of beneficial effects of AMF. I found a significant increase in the shoot, root, and total biomass by 36.3%, 28.5%, and, 29.7%, respectively. Moreover, mycorrhizal plants significantly increased phosphorus, nitrogen, and potassium uptake by 36.3%, 22.1%, and 18.5%, respectively. Affirmatively upon cross-verification studies, plant growth parameters intensification was accredited to AMF (Rhizophagus fasciculatus followed by Funniliforme mosseae), plants (Triticum aestivum followed by Solanum lycopersicum), and plant functional groups (dicot, herbs, and perennial) were the additional vital important significant predictor variables of plant growth responses. Therefore, the meta-analysis concluded that the emancipated prominent root characteristics, increased morphological traits that eventually help the host plants for efficient phosphorus uptake, thereby enhancing plant biomass. The present analysis can be rationalized for any plant stress and assessment of any microbial agent that contributes to plant growth promotion.

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Effects of CO2 enrichment and nutrition on growth, photosynthesis, and nutrient concentration of Alaskan tundra plant species

Canadian Journal of Botany ◽

10.1139/b86-396 ◽

1986 ◽

Vol 64 (12) ◽

pp. 2993-2998 ◽

Cited By ~ 84

Author(s):

Steven F. Oberbauer ◽

Nasser Sionit ◽

Steven J. Hastings ◽

Walter C. Oechel

Keyword(s):

Plant Biomass ◽

Co2 Enrichment ◽

Nutrient Content ◽

Interactive Effects ◽

Photon Flux ◽

Nutrient Concentrations ◽

Total Biomass ◽

Ledum Palustre ◽

Carbon Dioxide Concentrations ◽

Alaskan Tundra

Three Alaskan tundra species, Carex bigelowii Torr., Betula nana L., and Ledum palustre L., were grown in controlled-environment chambers at two nutrition levels with two concentrations of atmospheric CO2 to assess the interactive effects of these factors on growth, photosynthesis, and tissue nutrient content. Carbon dioxide concentrations were maintained at 350 and 675 μL L−1 under photosynthetic photon flux densities of 450 μmol m−2 s−1 and temperatures of 20:15 °C (light:dark). Nutrient treatments were obtained by watering daily with 1/60- or 1/8- strength Hoagland's solution. Leaf, root, and total biomass were strongly enhanced by nutrient enrichment regardless of the CO2 concentration. In contrast, enriched atmospheric CO2 did not significantly affect plant biomass and there was no interaction between nutrition and CO2 concentration during growth. Leaf photosynthesis was increased by better nutrition in two species but was unchanged by CO2 enrichment during growth in all three species. The effects of nutrient addition and CO2 enrichment on tissue nutrient concentrations were complex and differed among the three species. The data suggest that CO2 enrichment with or without nutrient limitation has little effect on the biomass production of these three tundra species.

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Improvement of the photosynthetic activity of Moldavian dragonhead (Dracocephalum moldavica L.) through foliar application of a nitrophenolate–based biostimulant

BIO Web of Conferences ◽

10.1051/bioconf/20181001009 ◽

2018 ◽

Vol 10 ◽

pp. 01009

Author(s):

Sławomir Kocira ◽

Agnieszka Sujak ◽

Tomasz Oniszczuk ◽

Agnieszka Szparaga ◽

Mariusz Szymanek ◽

...

Keyword(s):

Chlorophyll Content ◽

Photosynthetic Activity ◽

Foliar Application ◽

Positive Impact ◽

Abiotic Stress Tolerance ◽

Photosynthetic Apparatus ◽

Nutrient Content ◽

Physiological Processes ◽

Naturally Occurring ◽

Reported Study

Application of biostimulants instigates many physiological processes that enhance nutrition efficiency, abiotic stress tolerance, and quality traits of crops, regardless of their nutrient content. One of such preparations is Atonik which contains nitrophenol compounds naturally occurring in plant cells. Several studies have confirmed its beneficial effect on the growth, development, and improved metabolic activity of plants. Therefore, it seems advisable to investigate the effect of Atonik preparation on the photosynthetic activity of Moldavian dragonhead (Dracocephalum moldavica L.). The reported study was carried out in 2014 in Perespa, Poland. Over the growing season, Atonik was foliar-applied at a dose of 0.3 L/ha (0.1%) and 0.6 L/ha (0.2%) by single and double spraying of plants. Chlorophyll content and nitrogen status (N) were estimated by a Chlorophyll Meter SPAD-502 Plus. The foliar application of Atonik was found to improve the efficiency of the photosynthetic apparatus and chlorophyll content in the leaves of Dracocephalum moldavica plants, but the results were dependent on biostimulant concentration and number of its applications, and on the date of measurement. To conclude, Atonik is an environmental-friendly preparation which has a positive impact on the metabolic processes of plants.

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Weed Management through Imidazolinones in Pigeon Pea (Cajanus cajan L.)

Legume Research - An International Journal ◽

10.18805/lr-4607 ◽

2021 ◽

Author(s):

Amit Kumar ◽

A.K. Dhaka ◽

Satish Kumar ◽

Akshay Kumar Vats ◽

Harender .

Keyword(s):

Nutrient Uptake ◽

Weed Control ◽

Weed Management ◽

Promising Result ◽

Nutrient Content ◽

Pigeon Pea ◽

Cost Ratio ◽

Benefit Cost Ratio ◽

Pulse Crops ◽

Net Returns

Background: Pulse crops are commonly known as poor man’s meat. Pigeon pea is second most important pulse crops of India after chickpea. Weeds are amongst prime biotic factors limiting pigeon pea yield and can cause seed yield losses up to 80 per cent. Promising result of weed control by pendimethalin was documented in pigeon pea. Also Imazethapyr is applied as pre and post emergence to control grasses and broad leaved weeds in other pulse crops but limited research was undertaken in pigeon pea. Therefore, current experiment focused to compare the effect of imidazolinones alone and in combination in pigeon pea. Methods: To control weeds in pigeon pea, pre and post-emergence of imidazolinones alone and in combination with pendimethalin was applied. Nutrient content, nutrient uptake, productivity and economics of pigeon pea were worked out.Conclusion: Among herbicidal treatments, the highest nutrient content, nutrient uptake, productivity, net returns and benefit cost ratio in pigeon pea were observed in the pre-emergence application of pendimethalin + imazethapyr @ 1000 + 75 g ha-1. Therefore, this treatment may be an effective and profitable alternative to the existing manual and costlier recommendation (two hoeing at 25 and 45 DAS) of weed control in pigeon pea in Haryana locality.

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Vegetative growth of grasslands based on hyper-temporal NDVI data from the Modis sensor

Pesquisa Agropecuária Brasileira ◽

10.1590/s0100-204x2016000700009 ◽

2016 ◽

Vol 51 (7) ◽

pp. 858-868

Author(s):

Marcos Cicarini Hott ◽

Luis Marcelo Tavares de Carvalho ◽

Mauro Antonio Homem Antunes ◽

Polyanne Aguiar dos Santos ◽

Tássia Borges Arantes ◽

...

Keyword(s):

Vegetative Growth ◽

Vegetation Index ◽

Normalized Difference Vegetation Index ◽

High Growth ◽

Growth Index ◽

Data Series ◽

Moderate Resolution ◽

Resolution Imaging ◽

Moderate Resolution Imaging Spectroradiometer ◽

Very High

Abstract: The objective of this work was to analyze the development of grasslands in Zona da Mata, in the state of Minas Gerais, Brazil, between 2000 and 2013, using a parameter based on the growth index of the normalized difference vegetation index (NDVI) from the moderate resolution imaging spectroradiometer (Modis) data series. Based on temporal NDVI profiles, which were used as indicators of edaphoclimatic conditions, the growth index (GI) was estimated for 16-day periods throughout the spring season of 2012 to early 2013, being compared with the average GI from 2000 to 2011, used as the reference period. Currently, the grassland areas in Zona da Mata occupy approximately 1.2 million hectares. According to the used methods, 177,322 ha (14.61%) of these grassland areas have very low vegetative growth; 577,698 ha (45.96%) have low growth; 433,475 ha (35.72%) have balanced growth; 39,980 ha (3.29%) have high growth; and 5,032 ha (0.41%) have very high vegetative growth. The grasslands had predominantly low vegetative growth during the studied period, and the NDVI/Modis series is a useful source of data for regional assessments.

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NUTRIENT CONTENT IN SUNFLOWERS IRRIGATED WITH OIL EXPLORATION WATER

Revista Caatinga ◽

10.1590/1983-21252016v29n111rc ◽

2016 ◽

Vol 29 (1) ◽

pp. 94-100 ◽

Cited By ~ 3

Author(s):

ADERVAN FERNANDES SOUSA ◽

LINDBERGUE ARAÚJO CRISOSTOMO ◽

OLMAR BALLER WEBER ◽

MARIA EUGENIA ORTIZ ESCOBAR ◽

TEÓGENES SENNA DE OLIVEIRA

Keyword(s):

Reverse Osmosis ◽

Seed Production ◽

Crop Production ◽

Oil And Gas ◽

Produced Water ◽

Plant Biomass ◽

Nutrient Content ◽

Biological Properties ◽

Nutrient Concentrations ◽

Irrigated Agriculture

ABSTRACT: Irrigation using produced water, which is generated during crude oil and gas recovery and treated by the exploration industry, could be an option for irrigated agriculture in semiarid regions. To determine the viability of this option, the effects of this treated water on the nutritional status of plants should be assessed. For this purpose, we examined the nutritional changes in sunflowers after they were irrigated with oil-produced water and the effects of this water on plant biomass and seed production. The sunflower cultivar BRS 321 was grown for three crop cycles in areas irrigated with filtered produced water (FPW), reverse osmosis-treated produced water (OPW), or ground water (GW). At the end of each cycle, roots, shoots, and seeds were collected to examine their nutrient concentrations. Produced water irrigation affected nutrient accumulation in the sunflower plants. OPW irrigation promoted the accumulation of Ca, Na, N, P, and Mg. FPW irrigation favored the accumulation of Na in both roots and shoots, and biomass and seed production were negatively affected. The Na in the shoots of plants irrigated with FPW increased throughout the three crop cycles. Under controlled conditions, it is possible to reuse reverse osmosis-treated produced water in agriculture. However, more long-term research is needed to understand its cumulative effects on the chemical and biological properties of the soil and crop production.

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