Optimization of fertilizer rate based on farmers practice in potato-hybrid maize relay cropping system
نویسندگان
چکیده
منابع مشابه
Development of Variable Rate Fertilizer System Based on Optical Sensor
A variable rate fertilizer system was developed for control of fertilizer amount by optical sensor measured NDVI of crop. The paper analyzes the input and output conditions of control system, and designed hardware, algorithm and control of fertilizer, mainly software flow and a feedback control way. In the paper, the variable-rate control system consisted of 6 optical sensors mounted on a boom ...
متن کاملApparent fertilizer nitrogen recovery and residual soil nitrate under continuous potato cropping: Effect of N fertilization rate and timing
Pedology and Precision Agriculture Laboratories, Agriculture and Agri-Food Canada, 979, Ave de Bourgogne, SteFoy, Quebec, Canada G1W 2L4 (e-mail: [email protected]); Potato Research Centre, Agriculture and AgriFood Canada, 850, Lincoln Road, PO Box 20280, Fredericton, New Brunswick, Canada E3B 4Z7; and Institute of Research and Development in Agri-Environment, 2700 Einstein St., Quebec, Queb...
متن کامل: the effect of sericin levels (silk glue protein) on rate of in vitro maturation, fertilization and culture of sheep oocytes
هدف از آزمایش اول بررسی اثر سطوح مختلف سریسین [0 (control), 0.1, 0.5, 1.0, 2.5 %] افزوده شده به محیط , ivm بر cumulus cell expansion، بلوغ هسته و توسعه متوالی جنین، در گوسفندان نژاد سنجابی در فصل تولید مثلی می باشد. از سرگیری میوز به وسیله خارج شدن اولین پولار بادی اندازه گیری و هم چنین درصد رسیدن جنین های دو سلولی به مرحله کلیواژ و بلاستوسیت نیز به عنوان نشانه ای از میزان شایستگی توسعه اولیه ج...
Nonlinear response of N2O flux to incremental fertilizer addition in a continuous maize (Zea mays L.) cropping system
The relationship between nitrous oxide (N2O) flux and N availability in agricultural ecosystems is usually assumed to be linear, with the same proportion of nitrogen lost as N2O regardless of input level. We conducted a 3-year, high-resolution N fertilizer response study in southwest Michigan USA to test the hypothesis that N2O fluxes increase mainly in response to N additions that exceed crop ...
متن کاملDesign of Can-based Variable Rate Fertilizer Control System
A novel control system for variable rate fertilizer application based on CAN bus is presented. The system consists of variable rate controller based on DSP, ground speed sampling unit and light-bar guidance unit. These units form a control area network based on CAN bus. The variable rate controller collects signals of GPS position and ground speed, and calculates the conveyor feed shaft rotate ...
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ژورنال
عنوان ژورنال: Bangladesh Journal of Agricultural Research
سال: 2014
ISSN: 2408-8293,0258-7122
DOI: 10.3329/bjar.v39i2.20443