Centrifuged residue of concentrated latex production is the by-product or waste of latex
processing of the Hevea tree (Heveabrasiliensis). The 10-15% residue of fresh latex causes
waste disposal cost and environmental problems for factories. Because this residue contains
some nutrients (N, P, K) in available forms, it can potentially enhance para-rubber tree growth.
However, this centrifuged residue (CR) has some small rubber pieces mixed within that needs to
be blended to prevent soil problems. The waste of swine dung or manure (SD) has similar
problems on farms. This waste contains some essential plant nutrients, but it requires a period of
time for microorganisms to decompose into the available compounds for plant growth. Thus, the
blended fertilizer of latex residue with swine dung can potentially act as a preferable blended
fertilizer because the nutrients from both wastes can enhance the plant growth from the initial
stage. The aim of this study was to study the feasibility and effectiveness of the blended
fertilizer at consideration ratio of 1:1 (CR and SD) alone and at nutrient adjustment to equal to
chemical fertilizer usage for Hevea tree as a study case. We found that the blended fertilizer was
feasible for para rubber seedlings, from the view point of growth enhancement, soil properties
and water leachates.
Gecentrifugeerd oorblyfsel van gekonsentreerde latex produksie is die deur-produk of vermorsing van latex
verwerking van die Hevea boom (Heveabrasiliensis). Die 10-15% oorblyfsel van vars latex veroorsaak
afval koste en die omgewing probleme vir fabrieke. Omdat hierdie oorskot bevat
sommige voedingstowwe (N, P, K) in beskikbare vorms, kan dit potensieel verbeter para-rubber boom groei.
Maar hierdie gecentrifugeerd oorblyfsel (CR) het 'n paar klein rubber stukke gemeng binne wat moet
gemengde grond te voorkom probleme. Die afval van varke mis of mis (SD) het soortgelyke
probleme op plase. Dit afval bevat 'n paar noodsaaklike plantvoedingstowwe, maar dit vereis 'n tydperk van
die tyd vir mikro-organismes ontbind tot die beskikbare verbindings vir plantegroei. Dus, die
gemengde kunsmis van latex oorskot met varke mis kan potensieel optree as 'n beter gemengde
kunsmis omdat die voedingstowwe van beide afval kan die groei van die plant van die aanvanklike verbeter
stadium. Die doel van hierdie studie was om die haalbaarheid en doeltreffendheid van die gemengde studeer
kunsmis by oorweging verhouding van 1: 1 (CR en SD) alleen en op voedingstof aanpassing te gelyk aan
chemiese kunsmis gebruik vir Hevea boom as 'n studie geval. Ons het gevind dat die gemengde kunsmis was
haalbaar is vir para rubber saailinge, uit die oogpunt van groei verbetering, grondeienskappe
en water logingswater.
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