Fertilizer market is relatively at present troubled, quality is uneven, how to differentiate the true and false of organic fertilizer effectively, matter to fruiter nutrition complement and fruit crop, character.
Of 6 kinds of organic fertilizer discern method
1, on the exterior
Dust-colour of true organic fertilizer color or dark black, powdery substance submits loose form, and sham and inferior organic fertilizer is bright black, powdery substance is thicker, fake organic fat density should compare true organic fertilizer big.
2, clear water is deliquescent
Deliquescent in transparent glass 30-50 overcomes organic fertilizer, after using vitreous marvellous agitate 1 minute quiet place 10 minutes. View the facial expression inside the cup.
The black that inferior and organic fertilizer still presents a put oneself in another's position is cloudy, and true organic fertilizer presents color of from above to below differ former zoology earth is Brown, precipitation is by the cup grayish area is silt stone; Brown part is intermediate area organic stock; Stratosphere is grass, cut tobacco.
3, fertilizer efficiency judgement
More shallow fertilizer efficiency differs aqueous solution color more (fertilizer efficiency of light color, buff is low; Beautiful of Brown fertilizer efficiency) ;
① the aqueous solution inside 1 hour becomes completely Brown to show organic fertilizer or this biology organic fat become thoroughly decomposed overdoes, fertilizer efficiency has quick result not to have aftereffect, crop grows in later period can take off interest;
② change of 1 aqueous solution of Queen of heaven shallow specification of not big, color organic fat fertilizer efficiency needs organic fertilizer or this live thing.
After ③ aqueous solution becomes deep 1 day slowly, become completely Brown, show organic fertilizer or this biology organic fat late quick results has both fertilizer efficiency is good
4, the calcination that use internal heat
Inferior and organic fertilizer is hard to burn more, a large number of black smoke appear after combustion, and hangover is much, and true organic fertilizer burns easily, smoke also appears ashen (brown) , and hangover is a few grey black powder more.
5, soil is deliquescent speed
General and high grade organic fertilizer can dissolve quickly in soil, have the function of activation soil, improved structure, of the coming year thick, big, and flexibility is better. Inferior and organic fertilizer is buried inside earth to also do not dissolve through a few months, do not have value to soil improvement.
6, mount of package of biology bacterium fat product undertakes differentiating
① checks packet of mount face to whether the microbial fertilizer that the Ministry of Agriculture issues registers card
Organic fat product registers biology card is in the Ministry of Agriculture the microbial fertilizer center that register undertakes, issue fertilizer to register card by the Ministry of Agriculture.
Common and organic fertilizer is the fertilizer of agricultural hall earth that saves in each the station undertakes fertilizer is registered, those who issue is the provincial fertilizer card that register.
Number of organic fertilizer card represents live thing the method is " microbial fertilizer (register year) face a word (number) date " or " microbial fertilizer (register year) accurate word (number) date " .
② checks packet of mount to whether tag effective viable bacteria to count content
③ examination wraps mount whether mark has a product to produce date and period of efficacy
④ sees packet of mount whether have "NY884-2012 live thing standard of organic fat " ; The Ministry of Agriculture cultivates industry government to manage the website undertakes inquiring disembarkation network address Http://www.zzys.moa.gov.cn/ , click right " effective fertilizer is registered release " organic fertilizer registers inquiry biology card, lower part of the general and organic fat right that register saves department of agricultural office trade to cannot inquire to each.
