Rubber Latex-Booster Fertilizer: Choose by Tree Stage Before Buying

Updated Sources & method
Quick answer
For young rubber trees, match tree age to the RISDA rate schedule; for mature trees, confirm the RISDA 4 rate before buying because its rows are unclear here [source]. Do not choose a product solely on a 'latex booster' promise: no evidence cited here links a fertilizer grade to increased latex.
Decision details
For young rubber trees, match tree age to the RISDA rate schedule; for mature trees, confirm the RISDA 4 rate before buying because its rows are unclear here [source]. Do not choose a product solely on a 'latex booster' promise: no evidence cited here links a fertilizer grade to increased latex. Check the label and compare a dated quote for the same product, pack weight, quantity and delivery. LGM's 29/09/2026 price reading is a dated reference, not today's price or fertilizer payback evidence [source].

Fits if: Rubber growers assessing latex-booster fertilizer claims who need to separate RISDA guidance, claim evidence and a product quote.

Main drawback: No admitted fact connects a fertilizer grade with increased latex volume; the dated farmgate reading is not today’s price or evidence of fertilizer payback.

Compare: tree age and matching RISDA rate; confirm mature-tree rate; booster-product label and evidence; pack quantity and delivered total; farmgate price is dated, not today's price.

AI illustration: a small soil pit beside mixed vegetable farm beds showing a healthy white root zone in dark organic matter (generative image — not a real photo, not test evidence)
Illustration; not a photograph of a specific product.
In this guide

Short answer: choose by tree stage, not by the booster name

For young trees, start with tree age and the matching RISDA rate in the table below. The mature phase names RISDA 4, but its exact rate is unclear here, so confirm it with RISDA before choosing or buying. If your goal is more latex, do not treat a product’s “booster” name as proof that a particular grade increases volume; the evidence cited here has no grade-to-latex link. Once the grade and rate are settled, compare the label, pack weight, quantity and delivered total in a dated quote.

“Baja susu getah” usually means: “is there a fertilizer that makes my trees give more latex?” Three points help you decide:

  1. Verified — the RISDA fertilizer rate schedule by tree age, with immature-phase rates quoted here [source]. Use it to understand RISDA guidance; it does not prove another product increases latex volume.
  2. Verified — dated farmgate prices for latex versus cuplump [source]. That is why ‘susu getah’ is money.
  3. Before buying — ask for the full label, use directions and evidence identifying the product, crop, rate and comparison basis; then compare quotes for the same pack.

Why ‘susu’ is money: latex vs cuplump

Betul ke x? (betulkex.com) — LGM farmgate prices 29/09/2026 (sen/kg), as recorded. Ringgit conversions are arithmetic over the sen readings; today's price moves.
RegionCuplumpLatex 100% DRC (IPL+)
Peninsula446.67 sen/kg ≈ RM4.47/kg1,025.83 sen/kg ≈ RM10.26/kg
Sabah415.00 sen/kg864.00 sen/kg
Sarawak372.41 sen/kg(USS 557.57 sen/kg, 80% DRC)

Latex is tapped as liquid; cuplump is coagulated rubber. This record uses different DRC bases: latex is listed at 100% DRC and cuplump at 50% DRC. The sen/kg figures are therefore not a direct comparison at equal dry-rubber content. They are dated farmgate references, not evidence that fertilizer will increase latex or pay for itself [source].

What the RISDA schedule prescribes

Betul ke x? (betulkex.com) — listed immature-tree stages from planting through month 39, per-tree rates from the RISDA BUKU GAP; the mature phase (RISDA 4) is named but its rate rows are not cleanly read and are not quoted [source].
Tree ageFertilizerRate (g/tree)
0 months (planting)Rock phosphate113
2 monthsRISDA 175
8 monthsRISDA 1136
15 monthsRISDA 1156
23 monthsRISDA 1231
33 monthsRISDA 1354
39 monthsRISDA 1389
Mature phaseRISDA 4Named in the book; rate rows not cleanly read — ask a RISDA office, do not copy numbers from social media

For the full age-by-age schedule and application method, the rubber fertilizer schedule page owns it; this page focuses on the latex decision.

A latex price is not proof of fertilizer payback

Do not use the farmgate price to forecast a fertilizer return. A return calculation needs an output change attributable to the input choice, product and delivery costs, and labour; this price record does not provide those inputs. No admitted evidence here proves that a fertilizer grade increases latex volume. Get rate guidance from RISDA or an adviser who can assess the holding.

‘Latex booster’ products: what to demand

Before buying a “latex booster”, request the complete label, declared content, use directions and documents supporting the yield claim for that product and crop. A name or grade number does not establish compliance with the RISDA programme. Ask RISDA or an agronomy adviser to match rates to tree age and holding conditions; 4R calls for the right source, rate, time and place [source].

For any yield promise, ask for documents that identify the product, crop, rate and comparison basis. Without those details, a claim does not establish an effect on your holding.

Check grade and price through the supplier

For NPK supply, ask GrowEasy whether it can offer the product you are seeking; no price or grade list is published [source]. Send the product/label and pack weight you are seeking, quantity and postcode; ask whether it can be supplied and request a dated quote including delivery and total. The enquiry route does not set application rates or provide an agronomic recommendation. Mention BETUL10 for 10% off your first GrowEasy order [source].

Also read the rubber fertilizer schedule by age, the rubber grade-number decoder and 50 kg rubber fertilizer bag prices.

Frequently asked questions

Is there a fertilizer that increases latex yield?

No fact admitted here ties any fertilizer grade to a rise in latex volume. What is verified is the RISDA rate schedule for tree health [source] and dated farmgate latex prices [source]. 'Latex booster' claims must be checked on the product label.

Which fertilizer does RISDA prescribe for rubber?

RISDA’s immature schedule lists ages from planting through month 39: rock phosphate 113 g/tree at planting, then RISDA 1 fertilizer rising from 75 g to 389 g per tree by month; the mature phase switches to RISDA 4 — its rates are not cleanly read and are not quoted here [source].

What is the latex price now?

LGM reading 29/09/2026: Peninsula latex 100% DRC (IPL+) 1,025.83 sen/kg (≈ RM10.26/kg) and cuplump 446.67 sen/kg; Sabah latex 864.00, Sarawak cuplump 372.41 sen/kg — a one-day reading, not today's price [source].

How do I calculate the cost of a fertilizer order for my holding?

This page has no farm-specific cost figure. Use the product price, pack weight/quantity and delivery charge in a dated quote; do not use a general estimate as your farm accounts.

Are 'latex booster' products safe to buy?

A label alone does not establish safety or a yield effect. Ask for the full label, use directions and evidence for the same product and crop. Check the rate with RISDA or an adviser who can assess your holding before buying.