نتایج جستجو برای: no iron fertilizer control
تعداد نتایج: 4398731 فیلتر نتایج به سال:
a trial study was carried out to assess the influence of the plant residue management in conjuction with application of different nitrogen sources on wheat yield and components, at the agricultural faculty of shahidchamran university of ahvaz during 2011-2012.the experimental design was splitplot at randomized completed block design arrangement. the main plot were different wheat residue manage...
In order to study the effect of organic and chemical fertilizers on some agronomical properties of burley tobacco, an experiment was carrid out in a randomized complete block design with six fertilizer treatment and three replications at the research field of Shahrekord University in 2013. Fertilizer treatments were including of: control, chemical fertilizer equal 100 percent of tobacco needs, ...
to find the effects of spring foliar application of volck® mineral oil and its combination with fertilizer on the physiological, yield and quality characteristics of pistachio fruit, this research was done in the form of a randomized complete block design (rcbd) of 12 treatments and 3 replications on ohadi pistachio cultivar in chatrud of kerman in 2006 and 2007 for a duration of two years. the...
Fertilizer application control in reason is the key technology to improve operation quality, reduce fertilizer pollution, and cut down costs of production. A control system of variable rate fertilizer is developed based on microcontroller chip in the paper. The system can automatically control flow dosage by adjusting feed gate opening size and changing hydraulic motor speed of fertilizer conve...
To investigate the effects of chemical, organic and biological fertilizers application on the quantitative and qualitative characteristics of seedless barberry (Berberis vulgaris cv. Asperma) an experiment was conducted as split plot randomized complete block design with three replications in commercial garden in Qaen during 2016. Main-treatments comprised four application type of fertilizer (1...
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 ...
In order to study the effects of simultaneous application of nitrogen (N) and ZnSO4 fertilizers and biofertilizer (Azotobacter and Azospirillum) on grain yield and growth traits of rapeseed, Hyola308 cultivar, a field experiment, with split plot factorial layout based on randomized complete blocks design with three replications, was conducted at Research Field of Faculty of Agriculture, Univers...
Tillage practices and nitrogen (N) sources are important factors affecting rice production. Few studies, however, have examined the interactions between tillage practices and N fertilizer sources on NH3 volatilization, nitrogen use efficiency (NUE), and rice grain yield. This study aimed to investigate the effects of N fertilizer sources (no N fertilizer, inorganic N fertilizer, organic N ferti...
This research was conducted to evaluate effect of potassium and iron fertilizers on agro-physiological traits affected different irrigation regime of corn in Shahryar (Tehran province, central of Iran) via a split-split plots arrangement based on randomized complete blocks design with three replications during 2015. The main plot included different irrigation regime (Normal irrigation and stop ...
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