scholarly journals Automatic protray conveying and dibbling system towards development of automatic protray seeder for vegetable nursery

2020 ◽  
Vol 13 (2) ◽  
pp. 237-244
Author(s):  
A. Carolin Rathinakumari ◽  
G. Senthil Kumaran
Keyword(s):  
Stepper Motor ◽  
Programmable Logic ◽  
Seedling Production ◽  
Proximity Sensor ◽  
Growing Media ◽  
Dead End ◽  
Indexing System ◽  
Protected Cultivation ◽  
Vegetable Seedlings ◽  
Vegetable Cultivation

Quality and healthy seedling production is very important for successful vegetable cultivation. Recent days hybrid vegetable seedlings are raised in protrays under protected cultivation to ensure quality seedling production. Vegetable nursery raising is an upcoming successful entrepreneurship area. Growing media filled protrays are dibbled and seeded manually. This process is very tedious, labour intensive, time consuming and drudgery. Keeping this in view, an automatic protray conveying, dibbling and seeding system was designed and developed. The design and construction of automatic protray conveying and dibbling system is presented is this paper. The machine was designed suitable for 98 protray cell (Protray dimension : 530 x 275 mm and protray cavity matrix: 14 x 7 (lengthwise x widthwise) which is widely used for vegetable nursery raising. This system consisted of protray conveyor and indexing system, dibbling unit, penumatic systems, electronic controls and programmable logic controller (PLC). The main conveyor shaft was driven by a stepper motor and the stepper motor was driven by a micro-stepping drive with 3200 pulse/rev configuration. Each protray was detected by a sensor and indexed by determined distance pre-programed of PLC. The function of dibbling unit was to make 10 mm dia. x 10 mm deep depressions at the center of the each cell of the growing media filled protray. The dibbling unit was a set of conically shaped tubular pegs arranged in a common bar. The stroke of the operation was 30 mm and indenting was 10 mm deep. Proximity sensor of PNP type was used for the dead end limits of all motions and conveyor index. The sensors used were dibbling station home sensor, dibbling station lower sensor, main conveyor indexing sensor and tray detection sensor. The entire cycle was controlled by a logic programme and this synchronized the conveyor motion (position/inching) with the dibbling system. This machine was able to index the growing media protrays at the predetermined distance of 38.3 mm and to make uniform depth cavities. The dibbling capacity was found to be 300 protrays/h.

Optimization of growing media and pot size for vegetable seedlings grown in cylindrical paper pots using response surface methodology

2021 ◽  
pp. 1-10
Author(s):  
Ajit Pralhad Magar ◽  
Balaji Murhari Nandede ◽  
Rudragouda Chilur ◽  
Bhaskar Bharat Gaikwad ◽  
Abhijit Khadatkar
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Growing Media ◽  
Pot Size ◽  
Vegetable Seedlings

EVALUATION DE DIVERS MILIEUX DE CULTURE ET PROGRAMMES DE FERTILISATION POUR LA PRODUCTION DE PLANTULES DE TABAC À CIGARETTE EN CELLULE DE TODD

1985 ◽  
Vol 65 (3) ◽  
pp. 751-759
Author(s):  
MICHEL LAMARRE
Keyword(s):  
Seedling Production ◽  
Growing Media ◽  
Npk Fertilizer ◽  
Fertilizer Regimes

During a 3-yr period, the effect of different substrates and fertilizer regimes on tobacco seedling production in Todd cells in heated and non-heated greenhouse was studied. The substrate recommended by the "Conseil des Productions Végétales du Québec" combined with a 15-30-15 NPK fertilizer program applied at a frequency of three waterings out of four produced the best seedlings. Seedlings grown in a heated greenhouse showed much better development than those in a non-heated greenhouse.Key words: Flue-cured tobacco, Todd cell, growing media, fertilizer program, greenhouse

Design of Lifting System in Seals of the Hydraulic Support Eccentric Loading Test Bench Based on PLC and Stepper Motor

2014 ◽  
Vol 889-890 ◽  
pp. 902-905
Author(s):  
Xi Zhang ◽  
Da Long Wang ◽  
Xin Xing Liu ◽  
Miao Yu ◽  
Peng Xia ◽  
...  
Keyword(s):  
Test Bench ◽  
Programmable Logic Controller ◽  
Stepper Motor ◽  
Programmable Logic ◽  
Loading Test ◽  
Hydraulic Support ◽  
Lifting System

Make use of programmable logic controller (PLC) to control stepper motor to drive the lift of seals of the hydraulic support eccentric loading test bench, in order to make the test bench meet the demand of eccentric loading. Using the Mitsubishi FX series PLC as an example, introduce the methods and principles and realization of lifting action.

scholarly journals A Framework for Identification of Healthy Potted Seedlings in Automatic Transplanting System Using Computer Vision

2021 ◽  
Vol 12 ◽  
Author(s):  
Xin Jin ◽  
Chenglin Wang ◽  
Kaikang Chen ◽  
Jiangtao Ji ◽  
Suchwen Liu ◽  
...  
Keyword(s):  
Computer Vision ◽  
Three Dimensional ◽  
Comparison Method ◽  
Block Matching ◽  
Identification Accuracy ◽  
Position Information ◽  
Block Matching Algorithm ◽  
Fundamental Process ◽  
Vegetable Seedlings ◽  
Vegetable Cultivation

Automatic transplanting of seedlings is of great significance to vegetable cultivation factories. Accurate and efficient identification of healthy seedlings is the fundamental process of automatic transplanting. This study proposed a computer vision-based identification framework of healthy seedlings. Vegetable seedlings were planted in trays in the form of potted seedlings. Two-color index operators were proposed for image preprocessing of potted seedlings. An optimal thresholding method based on the genetic algorithm and the three-dimensional block-matching algorithm (BM3D) was developed to denoise and segment the image of potted seedlings. The leaf area of the potted seedling was measured by machine vision technology to detect the growing status and position information of the potted seedling. Therefore, a smart identification framework of healthy vegetable seedlings (SIHVS) was constructed to identify healthy potted seedlings. By comparing the identification accuracy of 273 potted seedlings images, the identification accuracy of the proposed method is 94.33%, which is higher than 89.37% obtained by the comparison method.

scholarly journals Biochar Type, Ratio, and Nutrient Levels in Growing Media Affects Seedling Production and Plant Performance

Agronomy ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1421 ◽  
Author(s):  
Antonios Chrysargyris ◽  
Munoo Prasad ◽  
Anna Kavanagh ◽  
Nikos Tzortzakis
Keyword(s):  
Lipid Peroxidation ◽  
Growth Yield ◽  
Nutrient Content ◽  
Plant Performance ◽  
Seedling Production ◽  
Plant Lipid ◽  
Growing Media ◽  
Plant Yield ◽  
Available Nutrients ◽  
Commercial Grade

Biochar can be used as an alternative component in growing media, positively affecting plant growth/yield, but also media properties. In the present study, two commercial grade biochars (BFW-forest wood; and BTS-fresh wood screening), mainly wood-based materials, were used at 7.5% and 15% (v/v), adding nutrient in two levels (100% and 150% standard fertilizer level-Fert). Biochar affected growing media properties, with increases on pH and changes on the nutrient content levels. Biochar BFW enhanced the emergence of seeds in comparison to the control. Increased fertilizer levels benefited plant yield in BFW and BTS at 7.5%, but not at 15%. Leaf stomatal conductance was reduced at 150% fertilized biochars (BFW + Fert and BTS + Fert) at 7.5%, while total chlorophylls increased at BTS + Fert at 7.5% and 15%. The addition of biochars decreased the antioxidant activity in the plant. Lipid peroxidation in lettuce was increased in most cases with the presence of biochars (BFW, BTS) and 150% fertilization, activating antioxidant (superoxide oxidase and peroxidase) enzymatic metabolisms. The addition of Biochars in the growing media increased the content of nutrients in seedlings, as plants could absorb more available nutrients. Biochar of beech, spruce, and pine species (BFW) at 7.5% was more promising for substituting peat to produce lettuce seedlings. However, examining different species (tomato, leek, impatiens, and geranium) with BFW at 7.5%, the results were not common, and each species needs to be evaluated further.

scholarly journals Substrates and cultivation environments in the production of seedlings of Genipa americana L. (Rubiaceae) seedlings

2020 ◽  
Vol 9 (10) ◽  
pp. e5759107920
Author(s):  
Tatiane Aparecida Curim Faria ◽  
Thayla Morandi Ridolfi de Carvalho Curi ◽  
Tiago Lima do Espírito Santo ◽  
Gustavo Haralampidou da Costa Vieira ◽  
Edilson Costa ◽  
...  
Keyword(s):  
Seedling Growth ◽  
Polyethylene Film ◽  
Seedling Production ◽  
High Quality ◽  
Protected Cultivation ◽  
Cultivation Environment

This study aimed to evaluate genipap seedling formation in different protected environments using different substrates. Five protected cultivation environments (E) were used: E1 - greenhouse without aluminized shade cover under polyethylene film; E2 - greenhouse with aluminized shade cover under polyethylene film; E3 - screened with black shade cover; E4 - screened with aluminized shade cover; and E5 - nursery covered with bacuri coconut straw. In each protected cultivation environment, substrates containing different percentages of earthworm humus (H), vermiculite (V), bovine manure (M) and shredded cassava stems (C) were tested. Seedlings emerged best in environments E2, E3 and E4. Mixtures ¾ H + ¼ V and ¾ H + ¼ C favored growth and yielded high quality seedlings. Environments E3 and E4 provided superior growth, with better- quality and high-quality seedlings. Environments E1 and E5 did not provide adequate seedling growth. Therefore, were not recommended for genipap seedling production using the substrates tested.

scholarly journals Penguatan Desa Wisata Berbasis Kampung Iklim: Menuju Terwujudnya Ketahanan Pangan di Desa Pandowoharjo Sleman Yogyakarta

PATRIA ◽  
2020 ◽  
Vol 2 (1) ◽  
pp. 69
Author(s):  
B. Tresno Sumbodo ◽  
Sardi Sardi ◽  
Sunarya Sunarya ◽  
Hermawan Prasetyanto
Keyword(s):  
Agricultural Land ◽  
Rainwater Harvesting ◽  
Community Education ◽  
Community Members ◽  
Knowledge And Skills ◽  
Dead End ◽  
Three Stages ◽  
Hydroponic Systems ◽  
Food Needs ◽  
Vegetable Cultivation

Every household always hopes to have enough food available. While fertile agricultural land is decreasing, food needs increase with increasing population. The use of the yard is expected to help improve food availability for the community.In realizing a climate village tourism village in Pandowoharjo Village, a series of activity programs are designed to be carried out continuously for three years. In Year I of the program, community education activities focused on harvesting and using rainwater for vegetable cultivation in the yard. The design of rainwater harvesting facilities is carried out in the form of IPAH, infiltration wells and dead-end channels (Rorak) in six padukuhan which have been designated as the center of tourism village development namely: Brayut, Temon, Pajangan, Dukuh, Karangtanjung and Plalangan.This method of mentoring the PPDM scheme in Pandowoharjo was carried out in three stages, namely program socialization, training and implementation. The mentoring process is carried out with two approaches, namely theoretical training and skills improvement with practice in the field.The results of the activities in Year I of the PPDM program have benefited partners directly, including: a) Increasing number of people who understand, and have skills in responding to climate change; b) Number of facilities for IPAH, infiltration and rorak wells increased by 15 units; c) The number of people who harvest and utilize rainwater increases by 15KK; d) The number of members of the farmer group of women who use the yard for the cultivation of vegetables with vertikulture and hydroponic systems increases by 20 people.Some achievements that are non-physical such as: network of rainwater harvesters, improvement of knowledge and skills of community members, and pilot cooperation partnerships that integrate several productive economic business groups with BUMDes.

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