نتایج جستجو برای: Seedling transplanting

تعداد نتایج: 16943  

Journal: :مهندسی بیوسیستم ایران 0
سید مهدی حسینی محمد لغوی

a paper-pot transplanter was designed, developed and evaluated in the field by transplanting sugar beet seedlings grown in paper pots. a ground-driven counter wheel equipped with an infra-red sensor measures the traveled distance and sends the corresponding signals to a micro-controller. a step motor controlled by the micro-controller turns the driving shaft of the paper-pot metering mechanism ...

1999
S. Sung Clanton C. Black Paul P. Kormanik

Loblolly pine (Pinus taedu L.) seedling height, root collar diameter (RCD) and the specific activities of three sucrose metabolizing enzymes, namely, sucrose spthase (SS), acid invertase, and neutral invertase, were measured to assess seedling responses to transplant stress. Bare-root nursery-grown loblolly pine seedlings were lifted and transplanted immediately into nearby nursery beds in Febr...

2014
Pious Thomas Reshmi Upreti P. Thomas R. Upreti

The study was taken up with the objective of testing whether the endophytic organisms isolated from crops that are normally non-hosts to the bacterial wilt pathogen Ralstonia solanacearum possessed pathogen-antagonistic activity and to evaluate the selected isolates for the alleviation of wilt disease in the target tomato crop through horizontal movement of promising organisms. Sixteen endophyt...

2017
Zhuohua Jiang Yang Hu Huanyu Jiang Junhua Tong

Automatic transplanters have been very important in greenhouses since the popularization of seedling nurseries. End-effector development is a key technology for transplanting plug seedlings. Most existing end-effectors have problems with holding root plugs or releasing plugs. An efficient end-effector driven by a linear pneumatic cylinder was designed in this study, which could hold root plugs ...

Transplanting or pot culture has been mentioned as a promising approach to increase crop yield and decrease irrigation water use in recent years. Using simulation models to assess pot culture is a valuable way in investigating the effect on yield, water consumption and other properties of crops such as soybean. For this purpose, several pot culture levels (seedling sizes) plus direct sowing wer...

Journal: :تحقیقات مهندسی کشاورزی 0
اردشیر اسدی عضو هیات علمی مرکز تحقیقات کشاورزی و منابع طبیعی اصفهان اورنگ تاکی استادیار پژوهش بخش تحقیقات فنی و مهندسی کشاورزی، مرکز تحقیقات کشاورزی و منابع طبیعی اصفهان مختار میران زاده محقق بخش تحقیقات فنی و مهندسی کشاورزی، مرکز تحقیقات کشاورزی و منابع طبیعی اصفهان محمد طهری دانشجوی رشته مکانیک ماشین های کشاورزی دانشگاه شهرکرد

a semi-automatic 9-row transplanter for bare root seedlings has recently been developed at the isfahan center for agricultural research that plants 80 seedlings/m2 using 9 operators at a capacity of 0.3 ha/d (8 h). separating a single seedling from a bunch and dropping it into a distributer cell by hand takes 1 s on average. at a density of 700-800 thousand/ha, the travel speed should not excee...

Journal: :علوم باغبانی 0
موسی ایزد خواه شیشوان مهدی تاج بخش رضا امیر نیا

abstract suitable seedling is one of the most important factors of onion growth and yield in transplanting method (tm). in order to investigation effects of different seedling size and age on marketable yield , biological yield, harvest index and some qualitative characters in onion an experiment was couducted at the agricultural research center of east azarbayjan in 2008. the factorial was con...

2013
Mirza Hasanuzzaman Kamrun Nahar T. S. Roy M. L. Rahman M. Z. Hossain

The experiment was conducted at the Agronomy field of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during August, 2008 to January 2009 to find out the optimum plant spacing and number of seedling per hill in relation to tillering and dry matter accumulation of transplanted rice plant. The experiment was carried out with three plant spacings (S =15 cm × 20 cm, S = 20 cm × 20 cm and S...

Journal: :Agronomy 2022

Transplanting is a core part of factory nurseries and key factor in determining the healthy growth seedlings. While transplanting has single operational function, complete process sorting, replanting complex. This paper innovatively proposes an intelligent multi-functional seedling system, where functions can be achieved with machine. strategies dynamic detection during performing within same t...

Journal: :DEStech Transactions on Engineering and Technology Research 2017

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