scholarly journals Effect of low poly tunnel on the yield and economics of bottle gourd

Author(s):  
Anop Kumari ◽  
Arjun Singh Jat ◽  
Mahesh Choudhary

The main objective of Front Line Demonstrations (FLDs) is to demonstrate newly released crop production technologies and its management practices at the farmer’s field under different agro-climatic regions and farming situations. Realizing the importance of frontline demonstrations in transfer of off season production technologies in bottle gourd, Krishi Vigyan Kendra, Maulasar, Nagaur-II conducted FLDs at farmers’ field to assess the economic feasibility of technology. Result of a comparative evaluation of low poly tunnel technology and traditional growing method of bottle gourd showed that the average yield of demonstrations was found to be 298 q /ha, whereas, for local crop, it was found to be 245 q/ha. The gross returns (Rs. 238400/ha), net returns (Rs. 138200/ha) and BCR (2.38) ratio were also recorded highest in bottle gourd grown under low tunnel compared to local check. The total bottle gourd yield and net profit per unit area were above normal when grown under low tunnels as the produce reached the market early avoiding the market glut.

2020 ◽  
Vol 15 (3) ◽  
pp. 157-161
Author(s):  
Chittaranjan Deka ◽  
A.K. Deka ◽  
P. Barman ◽  
M. Mudoi

The main objective of cluster front line demonstrations (CFLDs) is to demonstrate newly released crop production and protection technologies and its management practices at the farmer’s field in cluster approach under different agro-climatic regions and farming situations. Pointing the importance of cluster frontline demonstrations in transfer of oilseed production technologies, Krishi Vigyan Kendra, Barpeta conducted CFLDs at farmers’ field and accordingly study was conducted in Barpeta district of Assam. The study revealed that important package of practices where more increase in adoption was found were use of high yielding variety of rapeseed Var-TS-38 (72.5%), seed treatment (67.5%), use of proper seed rate (65.0%), recommended fertilizer dose (57.5%), line sowing on furrows (40.0%), weed management (27.5%) and sowing time (30.0%). There was noteworthy difference observed in yield of oilseed before conductance of CFLD and after CFLD programme. B:C ratio of oilseed crop after CFLD was higher than before CFLD. It showed impact of CFLD on adoption of oilseed production technologies. The factors responsible for low B:C ratio before CFLD was less adoption of all the recommended package of practices for oilseed crop in the region.


Author(s):  
Raj Singh ◽  
Om Prakash ◽  
Shalander Kumar ◽  
Mahesh Kumar

Low adoption of improved crop production technologies has been an important factor in reducing the income, increasing poverty and reducing socio-economic status of the farmers in the arid region. Greengram is one of the important pulse crop mainly grown during kharif season in rainfed conditions of Rajasthan. Apart from harsh agro-climatic and poor edaphic factors, non- adoption of innovative production technologies is one of the utmost important amenable factors for low yield in the region. Over a period of time, a number of improved crop production technologies have been developed, but due to many constraints and low adoption, full potential of the technologies could not be exploited. As a result, a large gap exists between potential yield and actual yield. There is a need to address various issues and factors, which helps to limit the crop productivity. The present study conducted at the farmer’s field in Jodhpur district of Rajasthan indicated that most of the respondents stated that low returns from crop production, high cost of inputs, lack of knowledge and processing industry were the major constraints and technological index varied between 44 to 48%. The results of the study also showed gaps in the use of high-yielding varieties, recommended doses of fertilizers and plant protection measures in greengram. Demonstration of high yielding varieties of greengram (RMG 62 and RMG 268), recommended dose of fertilizers (20 kg N+50 kg P2O5/ha) and plant protection measures (metasystox 750 ml/ha) considerably increased seed yield, net returns, B: C ratio and additionally income over farmer’s practice. Use of high yielding variety (RMG 62), recommended dose of fertilizers and plant protection measures increased seed yield and net returns by 42.5 and 63.8%, respectively over farmer’s practice. The study suggests that addressing the socio-economic issues and constraints that affect the adoption of improved production technologies are paramount. In addition, there is a need for knowledge extension of better production technologies to achieve higher yield and economic returns by greengram cultivation in the arid region.


2016 ◽  
Vol 8 (1) ◽  
pp. 423-428
Author(s):  
Vivek Sharma ◽  
Vijay Kumar ◽  
S.C. Sharma ◽  
Sukhvinder Singh

Front line demonstrations (FLDs) on wheat were conducted on 150 farmers’ fields to demonstrate the impact of drought tolerant rainfed varieties (PBW 175 & PBW 644) and other improved practices techniques (supplemental irrigation and sowing with seed drill) on production and economic benefits in the kandi region of Punjab state during rabi seasons from 2011-12 to 2013-14 under rainfed situation. The improved production technologies recorded additional mean yield of 27.8 q/ha and 28.4 q/ha for rainfed varieties and other improved practices. The per cent average increase in yield of rainfed over local cultivars was 35.3, while 29.1 for other improved practices. The average extension gap, technology gap and technology index were 7.3 q/ha, 8.4 q/ha and 22.5 per cent, respectively in different varieties. FLDs recorded higher B:C ratio of 2.32 and 2.52 for rainfed varieties and other improved practices, respectively. The FLDs conducted on improved technologies during the present study resulted in enhancement of yield, net returns and also increased the knowledge of the farmers. Thus, productivity of wheat could be increased by adopting recommended improved management practices with a suitable high yielding variety under rainfed conditions. The present study resulted in convincing the farming community about potentialities of improved production management technologies of wheat in productivity enhancement and for further adoption by the farming community.


HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 498e-498
Author(s):  
S. Paramasivam ◽  
A.K. Alva

For perennial crop production conditions, major portion of nutrient removal from the soil-tree system is that in harvested fruits. Nitrogen in the fruits was calculated for 22-year-old `Hamlin' orange (Citrus sinensis) trees on Cleopatra mandarin (Citrus reticulata) rootstock, grown in a Tavares fine sand (hyperthermic, uncoated, Typic Quartzipsamments) that received various N rates (112, 168, 224, and 280 kg N/ha per year) as either i) broadcast of dry granular form (DGF; four applications/year), or ii) fertigation (FRT; 15 applications/year). Total N in the fruits (mean across 4 years) varied from 82 to 110 and 89 to 111 kg N/ha per year for the DGF and FRT sources, respectively. Proportion of N in the fruits in relation to N applied decreased from 74% to 39% for the DGF and from 80% to 40% for the FRT treatments. High percentage of N removal in the fruits in relation to total N applied at low N rates indicate that trees may be depleting the tree reserve for maintaining fruit production. This was evident, to some extent, by the low leaf N concentration at the low N treatments. Furthermore, canopy density was also lower in the low N trees compared to those that received higher N rates.


HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 498c-498
Author(s):  
A. Fares ◽  
A.K. Alva ◽  
S. Paramasivam

Water and nitrogen (N) are important inputs for most crop production. The main objectives of nitrogen best management practices (NBMP) are to improve N and water management to maximize the uptake efficiency and minimize the leaching losses. This require a complete understanding of fate of N and water mass balance within and below the root zone of the crop in question. The fate of nitrogen applied for citrus production in sandy soils (>95% sand) was simulated using a mathematical model LEACHM (Leaching Estimation And Chemistry Model). Nitrogen removal in harvested fruits and storage in the tree accounted the major portion of the applied N. Nitrogen volatilization mainly as ammonia and N leaching below the root zone were the next two major components of the N mass balance. A proper irrigation scheduling based on continuous monitoring of the soil water content in the rooting was used as a part of the NBMP. More than 50% of the total annual leached water below the root zone was predicted to occur in the the rainy season. Since this would contribute to nitrate leaching, it is recomended to avoid N application during the rainy season.


2016 ◽  
Vol 3 (3) ◽  
Author(s):  
DHANANJAI SINGH ◽  
A.K. PATEL ◽  
S.K. SINGH ◽  
M.S. BAGHEL

Krishi Vigyan Kendra laid down Front Line Demonstration in the year 2010-11 and 2011-12 introducing new, high yielding and scented variety “Pusa Sugandha-3” and applying scientific practices in their cultivation. The FLDs were carried out in village “Dainiha” of Sidhi district in supervision of KVK scientist. The productivity and economic returns of paddy in improved technologies were calculated and compared with the corresponding farmer's practices (local check). Improved practices recorded higher yield as compared to farmer's practices. The improved technology recorded higher yield of 30.83 q/ha and 32.65 q/ha in the year 2010-11 and 2011-12, respectively than 22.13 and 24.21 q/ha. The average yield increase was observed 37.15 per cent. In spite of increase in yield of paddy, technology gap, extension gap and technology index existed. The improved technology gave higher gross return (37020 and 39180 Rs./ha), net return (16820 and 18920 Rs./ha) with higher benefit cost ratio (1.83 and 1.93) as compared to farmer's practices. The variation in per cent increase in the yield was found due to the poor management practices, lack of knowledge and poor socio economic condition. Under sustainable agricultural practices, with this study it is concluded that the FLDs programmes were effective in changing attitude, skill and knowledge of improved package and practices of HYV of paddy adoption.


Land ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 650
Author(s):  
Wakjira Takala Dibaba ◽  
Tamene Adugna Demissie ◽  
Konrad Miegel

Excessive soil loss and sediment yield in the highlands of Ethiopia are the primary factors that accelerate the decline of land productivity, water resources, operation and function of existing water infrastructure, as well as soil and water management practices. This study was conducted at Finchaa catchment in the Upper Blue Nile basin of Ethiopia to estimate the rate of soil erosion and sediment loss and prioritize the most sensitive sub-watersheds using the Soil and Water Assessment Tool (SWAT) model. The SWAT model was calibrated and validated using the observed streamflow and sediment data. The average annual sediment yield (SY) in Finchaa catchment for the period 1990–2015 was 36.47 ton ha−1 yr−1 with the annual yield varying from negligible to about 107.2 ton ha−1 yr−1. Five sub-basins which account for about 24.83% of the area were predicted to suffer severely from soil erosion risks, with SY in excess of 50 ton ha−1 yr−1. Only 15.05% of the area within the tolerable rate of loss (below 11 ton ha−1yr−1) was considered as the least prioritized areas for maintenance of crop production. Despite the reasonable reduction of sediment yields by the management scenarios, the reduction by contour farming, slope terracing, zero free grazing and reforestation were still above the tolerable soil loss. Vegetative contour strips and soil bund were significant in reducing SY below the tolerable soil loss, which is equivalent to 63.9% and 64.8% reduction, respectively. In general, effective and sustainable soil erosion management requires not only prioritizations of the erosion hotspots but also prioritizations of the most effective management practices. We believe that the results provided new and updated insights that enable a proactive approach to preserve the soil and reduce land degradation risks that could allow resource regeneration.


Sensors ◽  
2019 ◽  
Vol 19 (8) ◽  
pp. 1807 ◽  
Author(s):  
Silke Hemming ◽  
Feije de Zwart ◽  
Anne Elings ◽  
Isabella Righini ◽  
Anna Petropoulou

The global population is increasing rapidly, together with the demand for healthy fresh food. The greenhouse industry can play an important role, but encounters difficulties finding skilled staff to manage crop production. Artificial intelligence (AI) has reached breakthroughs in several areas, however, not yet in horticulture. An international competition on “autonomous greenhouses” aimed to combine horticultural expertise with AI to make breakthroughs in fresh food production with fewer resources. Five international teams, consisting of scientists, professionals, and students with different backgrounds in horticulture and AI, participated in a greenhouse growing experiment. Each team had a 96 m2 modern greenhouse compartment to grow a cucumber crop remotely during a 4-month-period. Each compartment was equipped with standard actuators (heating, ventilation, screening, lighting, fogging, CO2 supply, water and nutrient supply). Control setpoints were remotely determined by teams using their own AI algorithms. Actuators were operated by a process computer. Different sensors continuously collected measurements. Setpoints and measurements were exchanged via a digital interface. Achievements in AI-controlled compartments were compared with a manually operated reference. Detailed results on cucumber yield, resource use, and net profit obtained by teams are explained in this paper. We can conclude that in general AI performed well in controlling a greenhouse. One team outperformed the manually-grown reference.


2013 ◽  
Vol 27 (4) ◽  
pp. 656-663 ◽  
Author(s):  
Kristin K. Rosenbaum ◽  
Kevin W. Bradley

A survey of soybean fields containing waterhemp infestations was conducted just prior to harvest in 2008 and 2009 to determine the frequency and distribution of glyphosate-resistant waterhemp in Missouri, and to determine if there are any in-field parameters that may serve as indicators of glyphosate resistance in this species in future crop production systems. Glyphosate resistance was confirmed in 99 out of 144, or 69%, of the total waterhemp populations sampled, which occurred in 41 counties of Missouri. Populations of glyphosate-resistant waterhemp were more likely to occur in fields with no other weed species present at the end of the season, continuous cropping of soybean, exclusive use of glyphosate for several consecutive seasons, and waterhemp plants showing obvious signs of surviving herbicide treatment compared to fields characterized with glyphosate-susceptible waterhemp. Therefore, it is suggested that these four site parameters, and certain combinations of these parameters, serve as predictors of glyphosate resistance in future waterhemp populations.


Author(s):  
Jogender Singh ◽  
Kuldeep Singh ◽  
Hemender . ◽  
Premdeep .

Background: Summer mung proved to be an effective crop in improving soil health, providing additional income to the farmers, works as catch crop and fits in paddy-wheat crop rotation in Northern India. Its cultivation leads to increase in house hold income of the farmers and contributed to nutritional security in rural India. The present study was carried out by Krishi Vigyan Kendra (KVK), Sonepat in its adopted villages. Methods: A total number of 159 front line demonstrations (FLDs) were conducted on summer mung in 75.2 hectare area using improved variety MH-421 during summer 2017 and 2018 after harvesting of wheat and prior to paddy transplanting to show case improved production technologies on farmers’ field specifically under paddy-wheat rotation. The production, productivity and economic returns of summer mung in demonstrations and farmers’ practice were compared and different yield gaps were analyzed. Result: Average yield of demonstration plots was recorded significantly higher by 20.0 per cent and 21.3 per cent in summer 2017 and 2018, respectively. The extension gap was 1.75 q/ha and 1.90 q/ha while technology gap was 1.5 q/ha and 1.2 q/ha in 2017 and 2018, respectively. The additional economic returns for farmers ranged from Rs. 2907/ha to Rs. 3200/ha as a results of these FLDs. Hence, adoption of improved summer mung cultivation practices contributed to better yield and higher economic returns under paddy-wheat rotation after harvesting of wheat crop.


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