Good source of general purpose slow release (>4 month) fertilizer ...

I was VERY happy with the results I got with Osmocote Slow Release 15-9-12 Fertilizer last year on my fruit trees, plants and veggies. I did need to supplement the calcium via bonemeal but other than that it worked phenomenally with only two applications.

If you are looking for more details, kindly visit Sanyuanjiuqi.

I’ve been shopping around for buying it in bulk but it looks like the bulk prices aren’t that much better than the 8lb bag prices. Most places online sell a 50# bag for $100 + ~$25 shipping = $2.55/lb but I can just buy it on Amazon where it dips down to $19 for a 8# bag = $2.38/lb.

Osmocote surely isn’t the only slow release product on the market? Maybe I should be looking for local places that may carry it?

AMAZON PROTIP: Get a price tracking extension like Keepa to watch for price drops of things you know you will need to buy in the future (supplies, tools, etc.).

EDIT: I went ahead and created a spreadsheet comparing different sow release fertilizers on the market in this comment here

What are you using it for- soil or containers? I only use complete fertilizers in conjunction with container growing. In good soil, most often all that plants respond to is nitrogen, especially if you are also using mulch and/or compost.

For soil grown trees I buy slow release encapsulated urea for a fraction of the price of Osmocote that I buy by hundreds of pounds from an agricultural supplier- 50%N 90 day release that runs about 25 cents a pound, I think.

Around here it is used primarily by corn growers, but if you want to stimulate growth of fruit trees it works great for that. Generally, I wouldn’t want much longer release than that- no point in stimulating vegetative growth into fall.

For established trees a quick release app of N is probably best- applied at first signs of growth. That is to provide growth to the spur leaves and fruit in its earliest stages of growth when size is being increased by cell division and not by expanding the size of individual cells. Later in the season too much water and N just leads to bigger but blander fruit by encouraging larger cells, but more cells means higher brix.

NPK compound fertilizer

as a widely accepted and applied compound fertilizer, integrates the main three elements of nitrogen, phosphorus and potassium,providing essential nutrients for plant growth and development, while containing trace elements, reasonable and appropriate use of compound fertilizer, cansignificantly improve plant disease resistance and yield.

 1.Nitrogen
It is the basis for proteins in plants and animals, and is present in the chloroplasts, which are the molecules within plants that perform photosynthesis, making food for the plants.
2.Phosphorus
Phosphorus is often referred to as "The Energizer" for its role in converting the sun's energy into food, fuel and fiber.
3.Potassium
Potassium is one of the three primary crop nutrients required for plant growth. Potassium serves as the "Regulator" of many essential processes within the plant. 

Analysis of NPK 14 14 14

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1) The particles are small, uniform, and not easy to harden.
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3) Low water content, good water solubility, fast melting speed, suitable for cultivation in various facilities.
4) Nutrients are evenly distributed, which improves the utilization rate of fertilizers and significantly increases production and income.
5) Rich in nitrate nitrogen and ammonium nitrogen, it dissolves quickly, absorbs quickly and takes effect quickly.
6) The production process is clean, green, and environmentally friendly.

Certifications

Packaging & Shipping

Company Profile

SHANDONG MINGYU CHEMICAL CO.,LTD.(Brand: Harvest) factory is located at Jinxiang, Shandong Province.Our company specializes in the manufacturing, development, marketing and after sales service of fertilizers.
We have 18-years producing experience and 11-years exporting experience.
Our annual production quantity of fertilizer: 300,000MT.

Our fertilizer lines: NPK Compound Fertilizer, Water Soluble Fertilizer, Nitrogen fertilizer,Phosphate Fertilizer, Potassium Fertilizer, Organic fertilizer etc.

Advanced technology

1.Rotary drum granular producing line: The mixed material in the drum granulation is moistened by the binder, and the material is continuously bonded into granules with the rotation of the drum. Binder has water, urea, humic acid, etc., can be determined according to production needs. The main features of this process are: organic fertilizer can be directly granulated without advance treatment. The selection range of binder is wide, and the process versatility is strong.

2.Extruding granular producing line:Pelleting organic fertilizer and inorganic fertilizer are mixed in a certain proportion and manufactured by different fertilizer extrusion pelleting machines.

3.High tower roller compound fertilizer:Melting and mixing urea liquid and phosphate and potassium fertilizer under the granulation tower. It has the advantages of advanced technology, low cost, less pollution, high fertilizer efficiency utilization rate, wide coverage of nutrient ratio of compound fertilizer, large elasticity, good operation and so on.

Exhibitions

FAQ

Q1. Are you a manufacturer?
Yes, We are Manufacturer, we can supply cargo steady and timely.
Q2 . how can we guarantee quality?
Always a pre-production sample before mass production;
Always final inspection before shipment;

Q3.what can you buy from us?
compound NPK fertilizer,water soluble NPK fertilizer, nitrogen fertilizer,MAP,sulphate fertilizer,organic fertilizer,potassium humate,
sodium humate,humic acid.

Q4. why should you buy from us not from other suppliers?
1)Professional experience;2)OEM and ODM service;3)Quality control;4)Package diversity;5)Flexible MOQ;6)Fast delivery;7)After-sales service .

Q5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery,DAF,DES;
Accepted Payment Currency:USD,EUR,CNY;

Q6. What is your terms of payment?
Normally TT ,LC at sight.Or DP

Q7. How about your delivery date?
Normally it will takes 10~15 days after receive the deposit. The specific delivery time depends on the items and the quantity of the order.

Q8. Can you produce according to the sample?
Yes, we can produce by your samples or the specification you provide.

Q9. What is your sample policy?
For sample itself it is free, but the freight cost is on customer's side.

Our company can customize fertilizer with different element content, you may also be interested in these products:
 

For more information, please visit npk 15-15-15 compound fertilizer.