KR20090014284A - Fertilizer compositions for plantation crops - Google Patents

Abstract

A fertilizer composition comprises of an elemental nutrient mixture of nitrogen (N) in about from 11-17% by weight, phosphorus (P) in about 10-19% by weight, potassium (K) in about 3-15% by weight, magnesium (Mg) in about 1-3% by weight, and trace elements, wherein the N, P, K, and Mg nutrients are either in any one or more of elemental or compound forms, or in combination thereof. Two compositions are disclosed specific for growing and matured plants. The composition for growing plant comprises nitrogen (N) in about 11-12% by weight, phosphorus (P) in about 16-19% by weight, potassium (K) in about 3-35% by weight, magnesium (Mg) in about 2% by weight and trace elements. The composition for matured plants comprises nitrogen N) in about 17% by weight, phosphorus (P) in about 10% by weight, potassium (K) in about 15% by weight, magnesium (Mg) in about 2% by weight; and trace elements. The composition may be formulated as a slow-release formulation in palletized forms or in zeolite.

Description

Fertilizer composition for crops {FERTILIZER COMPOSITIONS FOR PLANTATION CROPS}

FIELD OF THE INVENTION The present invention relates to fertilizer compositions, and more particularly to fertilizer compositions for use in large-scale agricultural or plantation. More specifically, the composition has a nitrogen-to-phosphorus-to-potassium (NPK) ratio of effective inorganic nutrients and includes a slow release formulation.

Inorganic nutrient fertilizers are plant nutrients containing large amounts of nitrogen (N), phosphorus (P), potassium (K) (and hence NPK fertilizers), small amounts of magnesium (Mg), boron (B) and other trace elements. (elements) (called micronutrients). The ratio of N: P: K may vary for different fertilizers for different plant species, or may vary depending on soil and environment, terrain and climate.

This ratio can be expressed as, for example, 17:17:17, 15:15:15, 20:10:10, 15: 5: 5, and the like. A list of various fertilizer compositions and their component ratios are available from Encyclopedia of Chemical Technology, Vol. 9, pp. 25-150, which is hereby incorporated by reference in its entirety.

Some prior art patents disclose specific amounts or compositional ratios of certain nutrients. For example, US Pat. No. 4,713,108 (Kjohl) discloses a NPK + Mg combination of KC1 and / or K2SO4 as a potassium source, which is calculated as magnesium oxide (MgO) and lightly calcined to a specific particle size. ) MgO, containing magnesium in the amount of 0.2-3.0% added to the product.

Another aspect of the fertilizer is to provide a sustained release formulation that physically reduces the internal surface of microorganisms and moisture to break down the fertilizer component. Such physical means include the step of palletizing a fertilizer composition as disclosed in US Pat. No. 6,749,659 (Yu et al.) Into grains, wherein the grains are basically sulfur and swelling cracks. A matrix and at least one additional fertilizer material encased in said matrix. A further step in the parametric method is to encapsulate the pellets in coasting or membranes, such as sulfur coasting.

Another method of sustained release formulation is to provide a fertilizer in a sponge or porous inorganic medium so that the nutrients of the fertilizer are released to the soil. This medium is a zeolite as described in US-5,695,542 (Chang). It will be apparent to those skilled in the art that supplements, trace elements or soil improving materials to obtain standard NPK compositions can be added at various stages during the fertilizer production process.

Alternatively, some substrates may be fertilizer supplements as well as soil amendment materials. For example, some zeolites and densifiers are suitable for soil improvement when entering the soil with fertilizers that contain zeolite as an essential ingredient. Zeolites essentially contain trace elements and inorganic nutrients such as calcium, iron, magnesium and potassium. Thus, when zeolites are mixed in farmland, the zeolites improve soil properties. However, since zeolites do not contain nitrogen, phosphorus or organic nutrients, they are not themselves efficient fertilizers.

It is a first object of the present invention to provide a fertilizer having a novel composition of NPK nutrient ratio of new nitrogen (N): phosphorus (P): potassium (K).

A second object of the present invention is the expansion of the composition, wherein the composition of the trace elements comprises magnesium, bromine and other trace components. As will be described later, the fertilizer compositions according to the invention are found to be more effective in the growth and yield of plants.

A third object of the present invention is to provide an inorganic medium such as zeolite, and is provided to reinforce sustained release fertilizer compositions. Thus, gentle release of nutrients reduces the risk of plant rooting and lengthening the manure cycle.

The above and other objects can be achieved by the embodiment of the fertilizer composition according to the present invention. Universally, examples of fertilizer compositions according to the invention include 11-17% by weight of nitrogen (N), 10-19% by weight of phosphorus (P), 3-35% by weight of potassium (K), 1-3 Wt% magnesium (Mg), and trace elements, where N, P, K and Mg are in the form or combinations of one or more elements or mixtures.

Plant Compositions For grown and grown plants, the composition comprises 11-17 wt% nitrogen (N), 9-19 wt% phosphorus (P), 3-35 wt% potassium (K), 2 wt% Magnesium (Mg), and trace elements.

The inorganic source of the basic nutrient can be preferably obtained from the following sources.

Nitrogen (N) is obtained from one or a combination of urea (NH ₂ CONH ₂ ) and ammonium nitrate (NH ₄ NO ₃ ), preferably nitrogen (N) is urea nitrogen , Ammoniacal nitrogen and nitrate nitrogen, or any combination thereof.

Phosphorus (P) is obtained from phosphoric oxide (P ₂ O ₅ ).

Potassium (K) is obtained from potassium oxide (K ₂ O).

Magnesium (Mg) is obtained from magnesium oxide (MgO).

In another aspect of the invention, the fertilizer composition may be formulated as a sustained release formulation, comprising a palletized or granular form, encapsulating the nutrients in a coating and slowly releasing the zeolite Nutrients are absorbed into them. In the latter, the amount of nutrients in the fertilizer is controlled by the cation exchange capacity and the calcium, iron, magnesium and potassium contents in the zeolite.

General examples of fertilizer compositions according to the invention each comprise a general range of basic nutrient mixtures as follows.

-17-17 weight percent nitrogen (N)

9 to 19 weight percent phosphorus (P)

35% by weight of potassium (K)

1-3 weight percent magnesium (Mg); And

-Trace elements

Wherein the N, P, K and Mg nutrients are present in either one of the basic or compound forms or a combination thereof.

In the broad scope described above, it is possible to provide specific nutrient mixtures for meeting different needs of plants such as different stages of growth, types of plants, types and conditions of soils, topography and climate.

One particular formulation is a formulation for plant cultivation in which the nitrogen to phosphorus ratio N: P is adjusted to provide more phosphorus needed for the active rooting of growing plants. This mixture (hereinafter called "Greenfeed ™ SRF", depending on our economic activity) may have the following nutrient composition.

12 weight percent nitrogen (N);

19% by weight of phosphorus (P);

35 weight percent potassium (K);

2 weight percent magnesium (Mg); And

-Trace elements

The ideal composition of the Greenfeed ™ SRF includes the following nutrient composition.

12 weight% nitrogen (N);

16 weight percent phosphorus (P);

4 weight percent potassium (K);

2 weight percent magnesium (Mg); And

-Trace elements

The actual analysis of a sample of the fertilizer composition according to the present invention may be indicated by the following commercial analysis services. The first sample (gradually decreasing formulation for plant cultivation) of Greenfeed ™ SRF is analyzed in Example 1 below.

Example 1

Greenfeed ™ SRF

Analysis: Testing Services (Sabah) Sdn Bhd

Where: Sandakan, Sabah, Malaysia

Description: A 1 x 150g sample, described as a lumped Greenfeed ™ SRF, the mass is a soft oval with an average weight of 13g.

Analytical content: moisture content, nitrogen (N), phosphorus (P), potassium (K) and magnesium (Mg).

Table I

Analysis

Nutrient composition % * Nitrogen, N 16.19 Phosphorus, P (phosphorus oxide, P ₂ O ₅ ) 18.54 Potassium, K (Potassium Oxide, K ₂ O) 4.33 * Magnesium, Mg (Magnesium Oxide, MgO) 1.61 Moisture (% by weight) 2.43

* Percentage based on moisture free base

Second and third samples of Greenfeed ™ SRF are analyzed in Example 2 below.

Example 2

Greenfeed ™ SRF

Analysis: Felda Analytical Laboratory

Venue: Felda Agricultural Services Sdn Bhd, Jeranjan, Pahang, Malaysia

Description: Receive two samples, labeled 025 and 026, respectively, labeled Greenfeed ™ SRF. The condition when I receive it is good.

Analysis content: nitrogen (N), phosphorus (P), potassium (K) and magnesium (Mg).

Table II

Analysis

Sample number 025 026 Nutrient composition % % N (urea nitrogen), UR-N 2.8 4.9 N (ammonia nitrogen), NH ₄ -N 9.1 9.8 Total nitrogen, ΣN 11.9 14.7 Phosphorus, P (phosphorus oxide, P ₂ O ₅ ) 18.6 16.0 Potassium, K (Potassium Oxide, K ₂ O) 4.9 6.6 Magnesium, Mg (Magnesium Oxide, MgO) 2.1 2.0

Fourth and fifth samples of Greenfeed ™ SRF and MTF (Mature Tree Formulation) are analyzed in Example 3 below.

Example 3

Greenfeed ™ SRF and MTF

Analysis: Consolidated Laboratory (M) Sdn Bhd

Venue: Kuala Lumpur, Malaysia

Description: Received two samples listed as Greenfeed ™ SRF and MTF.

Analysis content: nitrogen (N), phosphorus (P), potassium (K) and magnesium (Mg); zinc (Z), copper (Cu), calcium (Ca) and boron (B)

Table III

Analysis

Example 4

Greenfeed ™ HMTF

Analysis: Consolidated Laboratory (M) Sdn Bhd

Venue: Kuala Lumpur, Malaysia

Description: Take one sample described as Greenfeed ™ HMTF.

Analysis content: nitrogen (N), phosphorus (P), potassium (K) and magnesium (Mg); zinc (Z), copper (Cu), calcium (Ca) and boron (B)

Table IV

Analysis

Claims (16)

A fertilizer composition comprising a basic nutrient mixture, The basic nutrient mixture is, 11-17 weight percent nitrogen (N); 10-19 weight percent phosphorus (P); 3-35% by weight potassium (K); 1-3 weight percent magnesium (Mg); And Contains trace elements, The N, P, K and Mg is a fertilizer composition, characterized in that it is in the form of one or more elements or mixtures or a combination thereof. The method of claim 1, The nutrients, 11-12% by weight of nitrogen (N), 16-19% by weight of phosphorus (P), 3-35% by weight potassium (K), 2 weight percent magnesium (Mg), and Fertilizer composition, characterized in that it comprises trace elements. The method of claim 1, The nutrients, 12 weight% nitrogen (N); 16 weight percent phosphorus (P); 4 weight percent potassium (K); 2 wt.% Magnesium (Mg); And A fertilizer composition comprising a trace element. The method of claim 1, The nutrients, 17 weight percent nitrogen (N); 10 weight percent phosphorus (P); 15 weight% potassium (K); 2 wt.% Magnesium (Mg); And A fertilizer composition comprising a trace element. The method of claim 1, The nutrients, 13 weight% nitrogen (N); 10 weight percent phosphorus (P); 15 weight% potassium (K); 2 wt.% Magnesium (Mg); And A fertilizer composition comprising a trace element. The method according to any one of claims 1 to 5, The trace element is about 1 kg of fertilizer, 300-600 mg boron (B); 50-70 mg zinc (Z); 4-5 mg of copper (Cu); And A fertilizer composition comprising one or more of 4-11 mg of calcium. The method according to claim 4 or 5, The trace element is a fertilizer composition, characterized in that containing 0.3mg of boron per 1kg of fertilizer. The method according to any one of claims 1 to 5, In the inorganic source of the basic nutrients, The nitrogen (N) is any one or a combination of urea (NH ₂ CONH ₂ ) and ammonium nitrate (NH ₄ NO ₃ ), The phosphorus (P) is phosphoric oxide (phosphoric oxide) (P ₂ O ₅ ), The potassium (K) is potassium oxide (potassium oxide) (K ₂ O), The magnesium (Mg) is a fertilizer composition, characterized in that the magnesium oxide (MgO). The method according to any one of claims 1 to 5, In the amount of the basic nutrients, The nitrogen (N) is calculated as any one or combination of urea nitrogen, ammoniacal nitrogen and nitrate nitrogen, The phosphorus (P) is calculated as phosphoric oxide (P ₂ O ₅ ), The potassium (K) is calculated as potassium oxide (K ₂ O), Fertilizer composition, characterized in that the magnesium (Mg) is calculated as magnesium oxide (MgO). The method according to any one of claims 1 to 9, The fertilizer composition is characterized in that the sustained release formulation. The method of claim 10, The fertilizer composition is characterized in that the fertilizer composition is formulated in palletized (palletized forms). The method of claim 11, The Sangik fertilizer composition is a fertilizer composition characterized in that it is encapsulated in a coating to slowly release nutrients. The method of claim 10, Fertilizer composition characterized in that the nutrient is absorbed into the zeolite. The method of claim 13, The amount of the nutrient is controlled according to the cation exchange capacity (cation exchange capacity) and the calcium, iron, magnesium and potassium content in the zeolite. A method for promoting plant growth and yield improvement, comprising applying a sufficient amount of the fertilizer composition according to claim 2. A method for promoting plant growth and yield improvement, comprising applying a sufficient amount of the fertilizer composition according to claim 4.