scholarly journals Promotion of Growth, Chlorophyll Content and Yield of Rice by a New Drug at Ultra High Dilution

2021 ◽  
Vol 20 (2-3) ◽  
pp. 16-23
Author(s):  
Priya Mondal ◽  
Siddharthasankar Banerjee ◽  
Nirmal Chandra Sukul ◽  
Raj Kumar Singh ◽  
Indrani Chakraborty ◽  
...  
Keyword(s):  
Chlorophyll Content ◽  
Opposite Effect ◽  
Growth And Yield ◽  
Natural Fertility ◽  
Test Plot ◽  
High Dilution ◽  
Field Measuring ◽  
Synthetic Fertilizers ◽  
Crude Material ◽  
Treated Plot

Application of synthetic fertilizers reduces natural fertility of soil and contaminates ground water. Some photosynthesis inhibitors at ultra-high dilution (UHD) increase photosynthesis, growth and yield of crops. A weedicide Paraquat at UHD enhanced growth and yield of potatoes in fields. This weedicide was serially diluted with distilled water and manually succussed in 30 steps following the method of preparation of homeopathic dilutions called potencies. In this way the 30th potency of Paraquat called Paraquat 30cH was prepared and preserved in 90 % ethanol. Paraquat 30cH was diluted with water 1:1000 (v/v) and sprayed on rice plants in a field measuring 0.3125 acre. The control plot of the same area was situated 300 meters away from the test plot. Three treatments were given at an interval of 7 days. Treated plot showed increased growth, chlorophyll content and yield of rice significantly as compared to control. The UHD of the weedicide produced exactly the opposite effect of the crude material on plants. The increased growth and yield of rice by Paraquat 30cH may be due to enhancement of photosynthesis of treated plants. The UHD of Paraquat increased yield of rice by 19.35% over the control.

Effect of Integration of Fertilizers and FYM on Productivity and Soil Health of Rainfed Potato

2017 ◽  
Vol 4 (1) ◽  
Author(s):  
S. K. YADAV ◽  
A. K. SRIVASTAVA ◽  
T. K. BAG
Keyword(s):  
Nutrient Management ◽  
Block Design ◽  
Soil Health ◽  
Growth And Yield ◽  
Recommended Dose ◽  
Research Station ◽  
Yield Attributes ◽  
Hill Region ◽  
North Eastern ◽  
Synthetic Fertilizers

A field trial was conducted during two consecutive summer seasons of2012 and 2013 at ICAR-Central Potato Research Station, Shillong, Meghalaya to evaluate the integration of nutrient sources on productivity and soil health under rainfed potato cultivation in north eastern hill region of India. There were six treatments of integrated nutrient management viz., 100% Recommended dose of fertilizers,75% RDF through synthetic fertilizers and 25% recommended dose of nitrogen (RDN) through FYM, 50% RDF and 50% RDN through FYM, 25% RDF and 75% RDN through FYM, 100% RDN through FYM and control (no application of any sources of nutrients). The experiment was laid out in randomized block design with four replications. Nutrient management practices showed the significant improvement on growth and yield attributes of potato over control plot. Highest productivity of potato tubers (t/ha) was noticed with application of 75% RDF through synthetic fertilizers along with 25% RDN through FYM. Similarly, the maximum net return was associated with application of 75% RDF and 25% RDN through FYM under investigation. Application of 75% Recommended dose of nutrients through synthetic fertilizers in combination with 25% Recommended dose of nitrogen through FYM was more profitable for sustainable production of potato in the north eastern hill region of India.

Spectral models for estimation of chlorophyll content, growth and yield of wheat crop

2006 ◽  
Vol 34 (1) ◽  
pp. 1-5 ◽  
Author(s):  
Mahender Singh ◽  
Ram Niwas ◽  
M. L. Khichar ◽  
Manoj K. Yadav
Keyword(s):  
Chlorophyll Content ◽  
Growth And Yield ◽  
Wheat Crop ◽  
Spectral Models

scholarly journals The Effect of Organic Fertilizers on Growth and Yield of Water Spinach (Ipomoea reptans Poir)

2021 ◽  
Vol 3 (2) ◽  
pp. 37-44
Author(s):  
Selvia Dewi Pohan
Keyword(s):  
Plant Growth ◽  
Water Content ◽  
Chlorophyll Content ◽  
Organic Fertilizers ◽  
Chicken Manure ◽  
Growth And Yield ◽  
Total Chlorophyll ◽  
Cow Manure ◽  
Water Spinach ◽  
Total Chlorophyll Content

Water spinach (Ipomoea reptans Poir) had been identified as a nutritious vegetable with high demand in Indonesia. Besides, this plant also has been evidenced to play an important role in environmental cleaning as phytoremediator. The study about the effect of organic fertilizers on the growth and yield of water spinach (Ipomoea reptans Poir) has been conducted in the Green House of Biology Department, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan. The study aims to investigate the most effective type of fertilizers and the dose for water spinach’s (Ipomoea reptans Poir) growth and yield. A Completely Randomized Factorial Design was designed for the experiment with two factors and three repetitions. The first factor is the type of fertilizer (chicken manure, cow manure, and compost), and the second factor is the dose of the fertilizer (1:1, 2:1, and 3:1). The parameters such as plant height, number of shoots, number of leaves, fresh weight, dry weight, leaf’s total chlorophyll content, and water content were measured to evaluate plant growth and yield. The General Linear Model used SPSS 21 programs was applied to analyze the collected data. Study results revealed that cow manure increased plant growth and yield significantly with dose 2:1 as the finest treatment, followed by dose 3:1. Cow manure also increased total chlorophyll content (8.0574c mg. L-1), with the most suitable dose was 2:1 (8.2807 mg. L-1). The plant’s water content tended to be high in chicken manure (93%), and the lower water content was in cow manure with dose 3:1 (87.5%).

scholarly journals Nutrients Assimilation and Chlorophyll Contents for Different Grapevine Varieties in Calcareous Soils in the Somontano DO (Spain)

Beverages ◽  
2018 ◽  
Vol 4 (4) ◽  
pp. 90 ◽  
Author(s):  
José Casanova-Gascón ◽  
Pablo Martín-Ramos ◽  
Clara Martí-Dalmau ◽  
David Badía-Villas
Keyword(s):  
Chlorophyll Content ◽  
Fruit Set ◽  
Chlorophyll Concentration ◽  
Calcareous Soils ◽  
Pinot Noir ◽  
Growth And Yield ◽  
Cabernet Sauvignon ◽  
Chlorophyll Contents ◽  
Young Leaves ◽  
The Impact

Lime-induced chlorosis (LIC) is an important abiotic constraint affecting the growth and yield of grapevines growing in calcareous soils in the Mediterranean region, and the sensory properties of the produced wine. In the work presented herein, the impact of LIC on the nutritional status and chlorophyll content was assessed for eleven varieties and a clone (Merlot, Pinot Noir, Cabernet Sauvignon, Tempranillo, Parraleta, Moristel, Aglianico, Macabeo, Sauvignon, Chardonnay, and Riesling), grafted to the same rootstock (1103 Paulsen). Macro- and micronutrient contents were determined in the fruit set and veraison stages by petiole analyses, while chlorophyll content in young leaves was monitored by SPAD. Significant differences were detected amongst varieties for all nutrients (including Fe), and inverse relationships between Fe and P contents in the petiole and chlorophyll concentration in the young leaves were found. Regarding LIC resistance, the Fe and chlorophyll contents suggest that Cabernet Sauvignon, Tempranillo and Aglianico varieties would show the best performance, while Sauvignon would be the least tolerant.

scholarly journals Effects of Severe Water Stress on Maize Growth Processes in the Field

2019 ◽  
Vol 11 (18) ◽  
pp. 5086 ◽  
Author(s):  
Libing Song ◽  
Jiming Jin ◽  
Jianqiang He
Keyword(s):  
Water Stress ◽  
Chlorophyll Content ◽  
Field Experiments ◽  
Seedling Stage ◽  
Growth And Yield ◽  
Summer Maize ◽  
Photosynthetic Membrane ◽  
Area Index ◽  
Severe Water Stress ◽  
Maize Plants

In this study, we investigated the effects of water stress on the growth and yield of summer maize (Zea mays L.) over four phenological stages: Seedling, jointing, heading, and grain-filling. Water stress treatments were applied during each of these four stages in a water-controlled field in the Guanzhong Plain, China between 2013 and 2016. We found that severe water stress during the seedling stage had a greater effect on the growth and development of maize than stress applied during the other three stages. Water stress led to lower leaf area index (LAI) and biomass owing to reduced intercepted photosynthetically active radiation (IPAR) and radiation-use efficiency (RUE). These effects extended to the reproductive stage and eventually reduced the unit kernel weight and yield. In addition, the chlorophyll content in the leaf remained lower, even though irrigation was applied partially or fully after the seedling stage. Severe and prolonged water stress in maize plants during the seedling stage may damage the structure of the photosynthetic membrane, resulting in lower chlorophyll content, and therefore RUE, than those in the plants that did not experience water stress at the seedling stage. Maize plants with such damage did not show a meaningful recovery even when irrigation levels during the rest of the growth period were the same as those applied to the plants not subjected to water stress. The results of our field experiments suggest that an unrecoverable yield loss could occur if summer maize were exposed to severe and extended water stress events during the seedling stage.

scholarly journals Municipal organic waste compost applied to vegetable cropping systems replaces mineral fertilization, reduces the risk of groundwater pollution by nitrates and improves soil fertility over three-year open-field succession

2021 ◽  
Author(s):  
Massimo Zaccardelli ◽  
Catello Pane ◽  
Ida Di Mola ◽  
Domenico Ronga ◽  
Mauro Mori
Keyword(s):  
Open Field ◽  
Groundwater Pollution ◽  
Organic Waste ◽  
Residual Effect ◽  
N Fertilizer ◽  
Growth And Yield ◽  
Nitrate Content ◽  
Mineral Fertilization ◽  
Nitrogen Rate ◽  
Synthetic Fertilizers

Highlights - Municipal solid organic waste compost (MSWC) integrated with N fertilizers can sustain vegetable production. - MSWC (at least 30 t ha-1 d.w.) replaced synthetic fertilizers for tomato and eggplant productions. - N fertilizer integration to the compost residual effect is necessary to sustain endive and broccoli productions. - MSWC (at 15 t ha-1 d.w.) needs 25% of N integration to reduce the gap with plant only fertilized with N fertilizer. - MSWC preserved soil quality and avoided accumulation of undesired metals, such as Cu and Zn.   Municipal waste compost was evaluated under open field conditions for replacing synthetic fertilizers in a vegetable three-year succession. Three compost rates, 45 t ha-1, 30 t ha-1 and 15 t ha-1 (dry matter), and compost at 15 t ha-1combined with 25%, and 50% of the full synthetic nitrogen rate, were compared to full and none synthetic nitrogen fertilizations. Crop succession was: tomato followed by endive in the first year; eggplant and, then, broccoli in the second year; tomato and, then, endive/broccoli, in the third year. The application of compost at a dose of at least 30 t ha-1 or at 15 t ha-1 with the addition of 25% of the full synthetic nitrogen rate, in Spring-Summer cycle, sustained growth and yield at levels comparable with those of synthetic nitrogen fertilization. However, only a very poor residual effect of the compost soil treatment on the yield of Autumn-Winter crops, was observed. Monitoring of nitrate content into the soil during cropping seasons, a reduction of the risk of groundwater pollution was displayed due to nitrates released by compost, respect to synthetic nitrogen fertilizer. The cumulative effects of compost application on soil properties were detected at the end of the field trials, registering changes in chemical parameters analyzed, except for phosphorus and boron.

The Effect of Fertigation with Nano NPK Fertilizers on Some Parameters of Growth and yield of potato (Solanum tuberosum L.)

2019 ◽  
Vol 9 (2) ◽  
pp. 225-232
Author(s):  
Hayyawi W.A.Al- juthery ◽  
Qusay M.N.Al-Shami
Keyword(s):  
Chlorophyll Content ◽  
Dry Matter ◽  
Growth Parameters ◽  
Irrigation System ◽  
Solanum Tuberosum L ◽  
Total Yield ◽  
Potato Cultivar ◽  
Growth And Yield ◽  
Dry Matter Yield ◽  
Biological Yield

A field experimentt has been carried out in the Autumn season of 2017 in one of the fields of the College of Agriculture - University of Qadisiyah to determine the response of the potato (Solanum tuberosumL.) to the fertigation with nano fertilizers of macro elements NPK on the growth and yield of the potato cultivar Arizona under drip irrigation system. The experiment has included 9 treatments of fertigation single Nano N, P, K, di combination nano (N+P), (N+K), (P+K), tri nano (N+P+K) and conventional fertilizers (NPK20:20:20) In addition to the comparative treatment, according to design of RCBD and one way simple treatment with 4 replicates .Fertilizers have been injected with levels of addition of 40L h-1of nano nitrogen fertilizer 25%N, 10 kg h-1 of nano phosphorus fertilizer 25% P and 20 kg h-1 of nano potassium fertilizer 35% K and 300 kg h-1traditional fertilizer Tron (NPK 20:20:20) ) in four batches 10%, 20%, 30% and 40% of the quantities of fertilizers added to the first, second, third and fourth batches respectively. The growth parameters tested areplant height, chlorophyll content in leaves, vegetative dry matter yield, soft tubers yield, biological yield, dry tubers yield, starch, protein , The results of the Duncan test under a significant level of 0.05 showe that the following fertigation of nano (N+P+K) give has given the highest rate of vegetative qualities and the quality of all yield and significantly exceeded the di combinations and individual fertigation in some traits (plant height and chlorophyll content SPAD.higher nano(N+P+K) combination in the vegetative yield, the soft tubers yield, the biological yield, dry matter yield of tubers, the total yield protein and starch (2.148, 48.221, 11.395, 9.246,843. 871 and 6.355 Mg h-1) .

Improvement of submergence tolerance in rice through efficient application of potassium under submergence-prone rainfed ecology of Indo-Gangetic Plain

2017 ◽  
Vol 44 (9) ◽  
pp. 907 ◽  
Author(s):  
Sharad Kumar Dwivedi ◽  
Santosh Kumar ◽  
Narayan Bhakta ◽  
Shishir Kant Singh ◽  
Karnena Koteswara Rao ◽  
...  
Keyword(s):  
Chlorophyll Content ◽  
Foliar Application ◽  
Foliar Spray ◽  
Growth And Yield ◽  
Limiting Factors ◽  
Wet Season ◽  
Gangetic Plain ◽  
Yield Gain ◽  
Anti Oxidant ◽  
Higher Doses

Potassium (K) is one of the limiting factors that negatively influenced rice growth and yield in submergence-prone soils. We conducted an experiment during the wet season of 2014–15 to achieve optimal doses of K and understand the effect of K application on submerged rice in terms of survival, chlorophyll content, non-structural carbohydrates (NSC), anti-oxidant activities and yield. Results revealed that chlorophyll and NSC content were significantly (P ≤ 0.05) lower whereas the activity of anti-oxidants (catalase, superoxide dismutase and total peroxidase) were significantly (P ≤ 0.05) higher after submergence compared with pre-submergence. Further, application of K at a higher basal dose (40 kg ha–1) was more beneficial to improve survival after de-submergence by maintaining NSC, chlorophyll content and higher activity of anti-oxidants with lower level of lipid peroxidation. Furthermore, results showed superiority of the treatments having application of higher doses with one foliar spray (T9–40 kg K2O ha–1 (basal) + one foliar spray at 0.5% K at panicle initiation (PI) stage) for grain yield. We conclude that application of a higher dose of K with one foliar application at PI stage is more beneficial to enhance plant survival, better recovery and yield gain of rice during complete submergence.

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