31 Questions 90 Answers 0 Followers
Questions related from Abdel Razzaq M Al Tawaha
🌱Call for papers – Special Issue in Nitrogen 🌱 We are pleased to serve as Guest Editors for a Special Issue in the MDPI journal Nitrogen (Impact Factor 2.3, Scopus Q2): “Innovative Nitrogen...
last month 3,823 2 View
I searching for a partner to join us ongoing project about QMRAcatch.The person should have experience on working QMRAcatch. Please send me the CV. The Interuniversity Cooperation Centre Water...
01 April 2024 9,295 4 View
The question is in another way. What is the relationship between SPAD chlorophyll value and Chlorophyll a, b and total Chl? For example, if the lettuce plant has high SAPD content value that...
11 June 2020 3,317 1 View
I have experimented with two Factor: Factor A: Two iron sources and Factor B: two seasons with three blocks. When I run the SAS, the interaction not significant, but the combination of the...
19 May 2020 2,826 6 View
I have water temperature data for moring and evening, I need to show the maximum and minimum value by the SAS program. Can anyone inform me of the SAS code for this
29 March 2020 4,371 3 View
I need Guidelines to write a systematic review in agriculture topic.
25 March 2020 8,271 8 View
I analyzed the plant tissue minerals such as N,P,K by atomic absorption (AAS). I take 0.25g of dry sample and digested. Then filtered and complete the solution to 100ml. The final reading for N,...
24 February 2020 3,430 8 View
I need protocol for Chlorophyll a and b, Vitamin A and vitamin C for lettuce plant??
30 June 2019 1,948 2 View
I looking for find explain for the concentraion in second table. what I mean for example: the amount used from Ca(NO3)2.4H2O equal 1003 g/1000L. and the concentration for Ca in the second table...
10 June 2019 3,661 4 View
I want to diluted water sample. The sample volume(10 ml), the reading give me out of range( the range 30 mg/l). amount of Nitrate I have more than 30 mg/L. How i can dilute the water sample to get...
05 May 2019 9,494 12 View
I known that composition of Nutrient solution for Hogland was composed the following composition of Hogland...
05 May 2019 761 8 View
If I have 10 kg of fish and produced 7.5 g ammonia per day from waste. And according to the data each in literature each 0.57g of ammonia need 1 square meter of biofilter material such as...
24 December 2018 563 4 View
what is the difference between monitoring and maintenance of water quality such as pH,EC, Salinity and alkalinity in aquaculture and aquaponics.
08 December 2018 9,772 34 View
I need to know the evaporation percentage in open filed, hydroponics and aquaponics condition in Malaysia or international range
27 March 2018 3,484 3 View
How to collect lettuce root exudate in hydroponic culture and aquaponics?
25 March 2018 5,566 4 View
I need to know the protocol for measurements Specific Surface Area laboratory for sugarcane bagasse
20 February 2018 797 2 View
I want to apply humic acid to leafy crops under hydroponics?? what the way for apply humic acid?
07 February 2018 4,417 6 View
the maximum concentration of total ammonia ([TAN] in mg/L) is estimated hourly load divided by the volume of water in the system and the estimated filter exchange rate (2 times per hour)?? This...
01 January 2018 2,986 3 View
I need method to How can do Root surface area measurements for lettuce.
25 December 2017 4,239 3 View
I need to the procedure/way for calculation pH, particle size, density, bulk density, Water Holding Capacity (kg/kg) specific surface area (m2/m3) and Void fraction (%) for these agriculture by...
13 December 2017 1,583 7 View
what the advantages and disadvantages??
07 November 2017 2,277 4 View
In aquaponics there are two way for circulation of Water is constantly circulated from RAS to hydroponic and back to RAS. and in Decoupled aquaponic system consisting of a RAS connected to the...
07 November 2017 9,892 6 View
How much the efficiency of used Agriculture by products act as biofilter such as rice husk and maize stubbles?
25 July 2017 4,392 6 View
I wish to guide about the ways for nitration the bacteria in aquaponics and we can activity the bacterial to establish the colony in short time.
08 May 2017 4,222 3 View
I search about the nutrient solution that produced by aquaponics and most of these for lettuce and I need for vegetables fruits.
02 May 2017 2,037 3 View
i need to determe the amount of biofilter media needed by nitrifying bacteria in aquaponic
02 May 2017 8,495 3 View
I need the procedures for mineral analysis in plant and the chemical needed and also the equipment.
23 April 2017 8,835 2 View
clear way for analysis Vitamins C?
19 April 2017 1,676 6 View
information about aquaponics in Malaysia, Thailand and other east Asia countries.
10 April 2017 7,128 3 View
Dear researcher, I would like to ask about a recommended paper that studied the ploidy determination (chromosome counting) for Azolla.
01 January 1970 2,195 1 View
Call for Papers – Special Issue in Nitrogen 🌱 We are pleased to announce a Special Issue in the MDPI journal Nitrogen (ISSN 2504-3129): “Innovative Nitrogen Management Strategies in Aquaponics,...
01 January 1970 9,257 0 View
