scholarly journals EFFECT OF VERMICOMPOST DOSES ON CANABIS SATIVA PHOTOSYNTHESIS-RELATED PARAMETERS, GROWTH AND YIELD

2021 ◽  
Vol 1 ◽  
pp. 237-243
Author(s):  
Veneranda Stramkale ◽  
Gederts Ievinsh ◽  
Māra Vikmane ◽  
Agnese Kirse ◽  
Ieva Kroica
Keyword(s):  
Field Experiment ◽  
Seed Yield ◽  
Physiological Condition ◽  
Cannabis Sativa ◽  
Mineral Fertilizer ◽  
Maximum Level ◽  
Mineral Elements ◽  
Organic Fertilizers ◽  
Growth And Yield ◽  
Small Scale

Hemp, Cannabis sativa is certainly a mul­tifunctional as well as a niche crop, due to great po­ten­tial for innovative use of its different products. Aspects of hemp mineral nutrition are very important in the cultivation of these plants, in particular to make cul­ti­vation environmentally friendly by replacing synthetic fertilizers with organic ones. Among organic fertilizers, vermicompost has gained particular attention within the last decades. Explaining the role of vermicompost, this study evaluated the effects of different doses of this fer­ti­lizer on hemps in two separate field studies. In a small-scale field experiment, the effect of two doses of ver­micompost and adequate concentrations of mineral elements fertilizers the growth, physiological condition, as well as yield of hemp was compared. The effect of increasing doses of vermicompost on the physiological condition and yield of hemp was analysed in a broader field experiment. The experiments were performed at the Viļāni Scientific Centre of the Agricultural Resour­ces and Economics, in 2017 and 2018, using the Latvian hemp cultivar ‘Pūriņi’. For the experiments, certified vermicompost produced by ‘Eko Zeme’ (Latvia) was used, which was produced from composted cow manure by adding grass biomass. In field experiment, the posi­tive effect of vermicompost on hemp growth was greater than the effect of equivalent mineral fertilizer con­centra­tions. When using vermicompost in increasing doses, better hemp growth (40–60 %) was observed at 5 and 10 t ha-1, stem yield increased on average by 40 % due vermicompost, seed yield ranging from 1.00 t ha-1 in control plants, to 1.56 t ha-1 in 20 t ha-1 in plants treated with 20 t ha–1 vermicompost plants. The weight of 1000 seeds per plant in all variants (from 13.54 to 13.85 g) was relatively close to the indicated maximum level (14.59 g). A statistically significant increase in chlo­ro­phyll concentration in plant leaves was observed under the influence of vermicompost. The increase in the Per­for­mance Index of the chlorophyll a fluorescence measu­rement was only for plants in individual experimental variants; regardless of how significant the increase in stem and seed yield was due to the respective doses of vermicompost. In general, the results characterize the growth of hemp in local agroclimatic conditions and allow to expect a stable increase in yield under the in­fluence of vermicompost. 

scholarly journals Alternate Nitrogen Amendments for Organic Fertilizers

2001 ◽  
Vol 1 ◽  
pp. 142-147 ◽  
Author(s):  
M.K.C. Sridhar ◽  
G.O. Adeoye ◽  
O.O. AdeOluwa
Keyword(s):  
Negative Impact ◽  
Mineral Fertilizer ◽  
Nutrient Content ◽  
Gliricidia Sepium ◽  
Organic Fertilizers ◽  
Growth And Yield ◽  
Sand Culture ◽  
Small Scale ◽  
Calcium Ammonium Nitrate ◽  
Small Scale Farmers

The use of compost or manure in agriculture as an organic source of nutrients is common in many tropical, developing countries like Nigeria. One of the drawbacks of such materials is their low nitrogen (N) content (=1% N). Farmers commonly use chemical N fertilizers such as urea, calcium ammonium nitrate (CAN), and NPK formulations to obtain better crop growth and yield. These chemical supplements may have a negative impact on the environment through nitrate leaching into water, leading to eutrophication of surface waters that can affect public health. Gliricidia sepium, a fast-growing, tropical, perennial hedge plant was tested as a source of N in organo-mineral fertilizer formulations. Average nutrient content of Gliricidia is 3.8% N, 0.32% P, 1.8% K, 0.8% Ca, and 0.2% Mg. Using a sand culture and Amaranthus caudatus as a test crop, it was shown that amending commercial composts with 30% Gliricidia prunings would benefit many small-scale farmers and control environmental pollution.

scholarly journals Effect of flooding on growth and yield of mungbean genotypes

2016 ◽  
Vol 41 (1) ◽  
pp. 151-162 ◽  
Author(s):  
MR Amin ◽  
MA Karim ◽  
MR Islam ◽  
S Aktar ◽  
MA Hossain
Keyword(s):  
Field Experiment ◽  
Seed Size ◽  
Seed Yield ◽  
Field Conditions ◽  
Growth And Yield ◽  
Yield Reduction ◽  
Plant Seed ◽  
Days To Flowering ◽  
Soil Flooding ◽  
Standing Water

The field experiment was carried out with some selected mungbean genotypes viz. IPSA-13, VC-6173A, BU mug 2, BARI Mung-5 and IPSA-12 to observe the effect of 4-days flooding on their growth and yield of mungbean under field conditions at Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh during September to November, 2011 maintaining 3-5 cm standing water at 24 days after emergence. Days to flowering and maturity delayed in flooded plants over control depending on the genotypes. Flooding significantly reduced Total Day Matters (TDM), number of pods per plant, seed size and seed yield of the mungbean genotypes over control. Considering higher seed yield, larger seed size and less yield reduction relative to control VC-6173A, BU mug 2 and IPSA-13 were found tolerant to soil flooding condition.Bangladesh J. Agril. Res. 41(1): 151-162, March 2016

scholarly journals Effects of Organic and Inorganic Fertilizers on the Growth and Yield of Kenaf (Hibiscus cannabinus L.) Production in South Western Nigeria

2021 ◽  
pp. 1-9
Author(s):  
S. O. Olanipekun ◽  
A. O. Togun ◽  
A. K. Adebayo ◽  
F. B. Anjorin
Keyword(s):  
Seed Yield ◽  
Block Design ◽  
Field Trials ◽  
Fertilizer Application ◽  
Hibiscus Cannabinus ◽  
Organic Fertilizers ◽  
Growth And Yield ◽  
Mineral Fertilizers ◽  
Inorganic Fertilizers ◽  
Organic Fertiliser

Farmers use Inorganic Fertilizers (IF) to improve kenaf yield in Nigeria. However, the detrimental effects of mineral fertilizers and its high cost calls for the use of organic fertilizers that are locally available and environment friendly. Combination of Organic Fertiliser (OF) with IF may reduce the bulkiness of OF while harnessing the benefit of both for higher yields. Field trials were conducted at Ibadan and Ilora in 2013 and 2014 to investigate the effects of combined fertilizers on the growth and yield of kenaf. Organic and IF (NPK 20:10:10) fertilizers as: (i) 160 kg ha-1 (sole organic), (ii) 100 kg ha-1 (sole IFl), (iii) Organic and IF at 50:50 ratio and (iv) control (no fertilizer). The experiment was laid out in Randomized Complete block design (RCBD) and replicated three times. Results showed that plant height (220.17 cm, 216.80 cm) and stem diameter (2.27 cm, 1.16 cm). Bast fiber (2.27 t/ha, 2.27 t/ha) and seed yield (1.69 t/ha, 1.78 t/ha) in Ibadan and Ilora respectively were significantly higher in plots with combined fertilizer. Combined fertilizers had the highest fiber and seed yield above sole application and control (no fertilizer application). Hence it is recommended for kenaf cultivation in Southwest Nigeria.

Effect of post-emergence herbicides on weed control, growth and yield of cluster bean [Cyamopsis tetragonoloba (L.) Taub.] in M.P.

2017 ◽  
Vol 37 (03) ◽  
Author(s):  
Kalpana Sharma ◽  
G. S. Rawat ◽  
Dharmendra Gaur ◽  
Anju Sharma
Keyword(s):  
Field Experiment ◽  
Weed Control ◽  
Seed Yield ◽  
Growth And Yield ◽  
Cyamopsis Tetragonoloba ◽  
Yield Attributes ◽  
Cluster Bean ◽  
Control Growth ◽  
Weed Control Efficiency ◽  
Stover Yield

A field experiment was undertaken to evaluate the performance of different weed control treatments in cluster bean during kharif, 2015 in RBD with three replications. Treatment of weed free check was found best by recording highest values of yield attributes, seed (20.97 q/ha), stover (65.68q/ha) with maximum weed control efficiency at successive stages. Among different herbicides treatments, Imazethapyr + Imazamox @ 40 g/ha (PoE) at 20 DAS showed highest values of yield attributes, seed yield (19.59 q/ ha), stover yield (63.83 q/ ha), WCE (91.84, at 60 DAS) and minimum WI (6.0). In monetary terms significantly highest net return (Rs.86883 /ha) were obtained from weed free check, followed by imazethapyr + imazamox @ 40 g/ha (PoE) at 20 DAS (Rs.85398 / ha) and imazethapyr @ 75 g/ha (PoE), at 20 DAS (84394 Rs./ha). The maximum B:C ratio of 6.57 was recorded with treatment imazethapyr @ 75 g/ha (PoE), followed by imazethapyr+ imazamox @ 40 g/ha (PoE) 6.37.

Influence of Seed Inoculation with Commercial Bacterial Inoculants (Bradyrhizobium Japonicum) on Growth and Yield of Soybean

2019 ◽  
Author(s):  
W Jarecki ◽  
D Bobrecka Jamro
Keyword(s):  
Field Experiment ◽  
Seed Yield ◽  
Bradyrhizobium Japonicum ◽  
Seed Weight ◽  
Dry Weight ◽  
Growth And Yield ◽  
Plant Analysis ◽  
Area Index ◽  
Bacterial Inoculants ◽  
Seed Inoculation

A field experiment was carried out with three bacterial inoculants: HiStick® Soy, Nitragina, Nitrazon and the control. Number and dry weight of nodules were significantly higher with inoculation of bacterial inoculants compared to the control. In 2017, the most pods per plant were obtained after the use of Nitrazon or HiStick® Soy, while in 2018, after the use of HiStick® Soy or Nitragina. In 2018, the highest 1000 seed weight was obtained after the use of Nitragina. In 2017, the seed yield was the most favourably affected by the inoculants HiStick®Soy (3.31 t ha-1) and Nitrazon (3.37 t ha-1) and in 2018, by HiStick® Soy (3.92 t ha-1) and Nitragina (3.87 t ha-1). High Soil Plant Analysis Development (SPAD) and Leaf Area Index (LAI) readings, were observed with HiStick® Soy.

Response of mungbean to NPK and lime under the conditions of Vindhyan Region of Uttar Pradesh

2016 ◽  
Author(s):  
Ram Swaroop Meena ◽  
Dinesh Varma ◽  
Sunil Kumar ◽  
Ekta Kumari
Keyword(s):  
Field Experiment ◽  
Seed Yield ◽  
Soil Acidity ◽  
Acid Soil ◽  
Uttar Pradesh ◽  
Dry Weight ◽  
Nutrient Content ◽  
Growth And Yield ◽  
Yield Parameters ◽  
Npk Uptake

A field experiment was conducted for the management of soil acidity with fertility and lime levels to sustain the productivity of acid soil of Vindhyyan region of Uttar Pradesh (India). Results of the study demonstrated that significant improvement in plant height (49.23 cm), number of nodule (76.95), dry weight of nodule (49.75 mg), highest LAI (4.45), yield parameters, yields, protein (21.39%), nutrient content and total NPK uptake (96.68 kg/ha ) were recorded with 100% RDF. Similar results were observed for all growth and yield parameters such as protein (%), nutrient (%) and total NPK uptake by crop with application of 200 kg lime/ha. A significantly higher seed yield (6.22 q/ha) was recorded with 100 % RDF + 200 kg lime/ha as compared to other treatment combinations, which was at par with 100 % RDF + 300 kg lime/ha and 125 % RDF + 300 kg lime/ha.

Influence of mulching practices, varieties and fertility levels on growth and productivity of clusterbean [Cyamopsis Tetragonoloba (L.) Taubert]

2018 ◽  
Author(s):  
Nisha Singh ◽  
Balkrishan Singh ◽  
R.L. Rajput
Keyword(s):  
Field Experiment ◽  
Seed Yield ◽  
Growth And Yield ◽  
Cyamopsis Tetragonoloba ◽  
Plastic Mulch ◽  
Weed Biomass ◽  
Kharif Season

A field experiment was conducted during the rainy (kharif) season of 2013 and 2014 to find out the effect of “influence of mulching practices, varieties and fertility levels on growth and productivity of clusterbean ,,.The results revealed that the plastic mulch significantly increased the growth and yield characterstics, seed yield as well as economics over the weed biomass mulch and no mulch. Variety HG-563 recorded significantly higher growth characterstics, yield attributing, seed yield and economics as compared to RGC-1055. Among the fertility levels, application of 75% RDF + VC 5 t/ha resulted in significantly higher growth characterstics, yield attributing, seed yield and economics over all the remaining fertility levels. Thus, it can be concluded that in clusterbean (variety HG-563), adoption of plastic mulch along with RDF 75%+ 5 t/ha vermicompost is recommended for erratic and scarce rainfall as well as low sustainability of soil.

The grazing animal and sward productivity

1963 ◽  
Vol 61 (1) ◽  
pp. 89-99 ◽  
Author(s):  
J. B. D. Herriott ◽  
D. A. Wells
Keyword(s):  
Soil Nutrient ◽  
Mineral Elements ◽  
Growth And Yield ◽  
Small Scale ◽  
Botanical Composition ◽  
Grazing Animal ◽  
Main Effect ◽  
Nitrogen Yields ◽  
Being Moved ◽  
Animal Grazing

1. The results of a trial designed to investigate the effects of sheep excreta on sward growth and yield are described.2. The quantities of plant nutrients excreted, and their distribution, by the grazing animal are discussed. An assessment is made of the value of excreta to pasture growth in the light of the results gained.3. Under Boghall conditions, the return of excreta had little affect on sward output, the main effect was for the pasture to become progressively more grass dominant. In general, weather and soil nutrient limitation had a greater effect on nitrogen yields from the swards than did excreta. Recovery of excreta nitrogen would appear to be influenced by rainfall and the age of the sward.4. On a soil inherently low in available potassium, it was found that this element and nitrogen both affected the pattern of herbage growth and composition when returned in excreta. Phosphorus return by the sheep was, however, of no observable value in either the levels of the element in the soil or in the herbage. It was found that rainfall and the botanical composition influenced the contents of mineral elements in the herbages.5. Balance studies suggest that sheep grazed in small paddocks need adequate pre-conditioning before being moved into a trial. Only by this means can return of excreta reflect consumption of herbage. The limitations of small-scale animal grazing experiments are discussed.

scholarly journals Farmer fertilization practices of mature rubber plantations in Northeast Thailand during a period of low rubber prices

2020 ◽  
Vol 4 (1) ◽  
pp. 162
Author(s):  
Supattra Kullawong ◽  
Satit Aditto ◽  
Bénédicte Chambon ◽  
Arunee Promkhambut
Keyword(s):  
Organic Fertilizer ◽  
Organic Fertilizers ◽  
Growth And Yield ◽  
Tree Cover ◽  
Small Scale ◽  
Northeast Thailand ◽  
Structured Interviews ◽  
Nutrient Contents ◽  
Rubber Plantations ◽  
Individual Household

Since 2000, farmers in Northeast Thailand have planted more than 5,000 sq km of rubber on land previously devoted to agriculture. The expansion of rubber led to a significant increase in tree cover in Northeast Thailand. Rubber prices peaked in 2011 and since then farmers have had to adjust to lower prices. Little research has documented how farmers responded to low rubber prices. This paper seeks to describe how small-scale rubber farmers use fertilizer in a region that did not historically grow rubber during a period of low rubber prices. We collected data from structured interviews with 29 farmers in Subsomboon village in Khon Kaen province, Northeast Thailand. Most farmers reported that they reduced fertilizer costs by reducing the number of times they applied fertilizer, as well as changing to cheaper brands and/or using organic fertilizer. The majority of farmers still used large amounts of chemical fertilizers, either alone or in combination with commercial organic fertilizers with unknown nutrient contents. The N and P2O5 contents of the chemical fertilizer alone were consistent with national recommendations (82.0–137.6 kg N/ha/y and 33.3–97.7 kg P2O5/ha/y). Thai national recommendations for rubber, however, were developed for rubber plantations in traditional planting areas where rubber has been grown for over a century, and are considered by many experts to be high. The study’s findings indicated that small scale rubber farmers would benefit from recommendations for fertilizer applications that respond to variations in rubber prices, while taking into account the diversity of individual household characteristics and goals. To optimize recommendations that sustain the growth and yield of rubber, limit the effects of environmental externalities, and maintain rubber’s profitability, policymakers require detailed information on the diverse situations in which rubber is grown. This requires experimental research that tests a variety of fertilization practices under different biological and physical conditions.

scholarly journals Effect of canopy relative humidity on growth and yield of pigeonpea + kalmegh intercropping system

2021 ◽  
Vol 17 (2) ◽  
pp. 442-445
Author(s):  
J. P. Bholane ◽  
V. M. Bhale
Keyword(s):  
Relative Humidity ◽  
Field Experiment ◽  
Grain Yield ◽  
Seed Yield ◽  
Negative Correlation ◽  
Dry Matter ◽  
Growth And Yield ◽  
System Effect ◽  
Positive Correlation ◽  
Herbage Yield

A field experiment was conducted at Nagarjun Medicinal Garden, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola during 2009-10 to determine suitable row proportion for pigeonpea + kalmegh intercropping system. Effect of weather parameter such as canopy relative humidity on growth and yield of pigeonpea and kalmegh was studied. Further, canopy relative humidity showed decreasing pattern with the advancement in age of the crop. In pigeonpea maximum morning canopy relative humidity was observed with 2:1 row proportions, however evening canopy relative humidity was maximum with 2:2 row proportion. Dry matter and grain yield of pigeonpea showed positive and negative correlation with morning and evening canopy relative humidity, respectively. While herbage yield, seed yield and andrographoloide yield of kalmegh reported negative and positive correlation with morning and evening canopy relative humidity, respectively.

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