---
title: "Ib化成肥料 — ¥5.3M/yr Amazon JP Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/jp/diy/ib"
last_updated: "2026-08-06T15:18:32.152Z"
locale: en
meta:
description: "Niche score 54/100 · ¥5.3M/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 54/100 · ¥5.3M/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Ib化成肥料 — ¥5.3M/yr Amazon JP Niche (2026) - Flapen"
---
# **ib化成肥料**
**Worth a look**
Shows low returns (0.2%), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.
Market size 98Growth 63Conversion 74Competition 8Returns 99Price range 0Avg price 0Brand share 0Review moat 82Quality gap 76
**Returns**
**Incredible****0.2%**
return rate — above 5% kills the launch gate
**Market size**
**Incredible****¥5.3M**
¥5.3M/yr · 50K searches
**Review moat**
**Great****362.29**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Great****4.3★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Good****6.9%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Good****+40.6%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****90%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Avg price**
**Bad****¥1537.56**
avg listing price — sweet spot $15–$100
**Price range**
**Bad****¥410.57–¥3357.73**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Signals**[** High Price**](https://flapen.com/research/niches?market=jp&signal=high_price "Avg price > $50")
According to Flapen's Amazon Japan niche tracking, ib化成肥料 is a ¥5.3M/yr Amazon Japan market (50K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Apr–May–Jun–Jul. Verdict: Worth a look — 54/100.
Data updated Jul 30, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **ib化成肥料 market data**
- **Units sold / yr**
- **3K–4K**
- avg 250–500/product
- **Revenue / yr**
- **¥4.6M–¥6.2M**
- units × avg price
- **Conversion rate**
- **6.9%**
- **Avg BSR**
- **#73**
- **Page quality**
- **0%**
- **Prime**
- **86%**
- **Sponsored**
- **71%**
- **Out of stock**
- **7.7%**
- **Avg brand age**
- **102 months**
- **Avg seller age**
- **181 days**
## **Competition & brand share**
The top 5 products capture 90% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**5 **▼falling
**Sellers**
**33**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**90%**
Top 20: 100%
**Open market**
**0%**
- 花ごころ63% - SDKWDH12% - 三菱商事アグリサービス10% - 三菱商事アグリサービス(株)10% - ノーブランド品5% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +40.6% search growth over the last 90 days.
2K2KSpike '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 4.4×
[**Open Trend **](https://flapen.com/research/jp/diy/ib/trend)
## **Top ib化成肥料 search terms**
- **ib肥料**25K/yr+46.7%6.1% conv. - **ib化成肥料**14K/yr+44.2%3.7% conv. - **ib化成**5K/yr+14.5%3.8% conv. - **ibのチカラ**3K/yr+52.3%7.0% conv. - **アイビー化成肥料**3K/yr+4.7%4.9% conv. [**All search terms **](https://flapen.com/research/jp/diy/ib/search-terms)
## **Top ib化成肥料 products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%15%¥793K30%¥1.6M45%¥2.4M60%¥3.2M101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted
All 7 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**花ごころ IBのチカラ グリーンそだち 室内でも安心、無臭で清潔な肥料 EX 1.4kg**花ごころ**¥960.16**4.3★1,031 rev](https://www.amazon.co.jp/dp/B0023OC1V2) [2**花ごころ グリーンそだち 室内でも安心、無臭で清潔な肥料 EX 500g**花ごころ**¥410.57**4.3★1,031 rev](https://www.amazon.co.jp/dp/B0023OHLAI) [3**国産 三菱 IB肥料 3kg**SDKWDH**¥1861.58**4.4★181 rev](https://www.amazon.co.jp/dp/B018XA0UIU) [4**IB緩効性肥料 1kg 1.0kg**三菱商事アグリサービス(株)**¥1099.31**4.1★153 rev](https://www.amazon.co.jp/dp/B018XAF7GK) [5**三菱商事アグリサービス 厳選素材 穏やかに長く効く ＩＢ肥料 国産品 ３ｋｇ ２袋セット**三菱商事アグリサービス**¥3357.73**4.2★111 rev](https://www.amazon.co.jp/dp/B07ZCVTR6L)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**IB緩効性肥料 500g**三菱商事アグリサービス**¥816.22**29 rev6y ago](https://www.amazon.co.jp/dp/B01EWB2WDA) [**三菱商事アグリサービス 厳選素材 穏やかに長く効く ＩＢ肥料 国産品 ３ｋｇ ２袋セット**三菱商事アグリサービス**¥3357.73**111 rev6y ago](https://www.amazon.co.jp/dp/B07ZCVTR6L) [**国産 三菱 IB肥料 3kg**SDKWDH**¥1861.58**181 rev10y ago](https://www.amazon.co.jp/dp/B018XA0UIU) [**IB緩効性肥料 1kg 1.0kg**三菱商事アグリサービス(株)**¥1099.31**153 rev10y ago](https://www.amazon.co.jp/dp/B018XAF7GK) [**花ごころ IBのチカラ グリーンそだち 室内でも安心、無臭で清潔な肥料 EX 1.4kg**花ごころ**¥960.16**1,031 rev17y ago](https://www.amazon.co.jp/dp/B0023OC1V2)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**ハナ ごころ IBのチカラ 肥料 グリーンそだち 室内用 EX 1.4kg**ノーブランド品**¥2257.32**0.0★**▲ 70%**](https://www.amazon.co.jp/dp/B0GH8FY5V7) [**花ごころ グリーンそだち 室内でも安心、無臭で清潔な肥料 EX 500g**花ごころ**¥410.57**4.3★**▲ 46%**](https://www.amazon.co.jp/dp/B0023OHLAI) [**IB緩効性肥料 1kg 1.0kg**三菱商事アグリサービス(株)**¥1099.31**4.1★**▲ 22%**](https://www.amazon.co.jp/dp/B018XAF7GK) [**IB緩効性肥料 500g**三菱商事アグリサービス**¥816.22**4.4★**— 4%**](https://www.amazon.co.jp/dp/B01EWB2WDA) [**花ごころ IBのチカラ グリーンそだち 室内でも安心、無臭で清潔な肥料 EX 1.4kg**花ごころ**¥960.16**4.3★**— 10%**](https://www.amazon.co.jp/dp/B0023OC1V2)
**~~View all trending →~~**
## **What buyers say about ib化成肥料**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**使用の容易さ**52%
*“初心者でも扱いやすいところが気に入っています。”*
**匂い**20%
*“無臭で素手でさわれるので便利です。”*
**コストパフォーマンス**13%
*“コスパ高い”*
**室内での使用に適している**7%
*“虫が集まらない. 乾燥でも濡れても臭いが出ないので虫が集まらないし、白カビのようなモカモカにもならないので室内植物にも使いやすいです”*
**総合品質**7%
*“レビュー良かったし。”*
**サイズ全体**2%
*“サイズで扱いやすく、無臭なので室内でも安心して使えます。”*
### **What buyers complain about **
**コストパフォーマンス**50%
*“それでもやや割高なのでもっと多い量でお得だといいなと”*
**使用の容易さ**50%
*“抜け殻を取り除く作業が面倒ではありますが。”*
### **Top return reasons **
**互換性-全体**33%
**清掃の容易さ**33%
**漏れ防止**33%
## **Common questions**
- **Is ib化成肥料 profitable to sell on Amazon Japan?**
- The niche generates ¥5.3M/yr across 7 tracked products. 90-day search growth is +40.6%. Flapen's verdict: Worth a look (54/100).
- **How competitive is the ib化成肥料 niche?**
- 5 brands and 33 sellers compete. The top 5 products take 90% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in ib化成肥料?**
- Top complaints mined from reviews: コストパフォーマンス, 使用の容易さ. The return rate is 0.2%.
- **When does demand for ib化成肥料 peak?**
- Demand peaks in Apr–May–Jun–Jul; the busiest month runs 4.4× the quietest.
- **What does it cost to enter the ib化成肥料 niche?**
- Listings span ¥410.57–¥3357.73; the average listing price is ¥1537.56 (sweet spot $15–$100). The average incumbent carries 362 reviews — the moat a new listing must climb.
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