JPH1128008A - Intraridge row fertilizer applicator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an intraridge row fertilizer applicator, having simple structure and capable of concentratedly applying fertilizer into ridge without clogging granular fertilizer by forming a chisel for leading fertilizer to soil and its opening in a specific shape and carrying out ridging after applying fertilizer. SOLUTION: A hollow chisel 17 having a current plate on the rear and having openings in the bottom and the rear of the current plate is made to drive into soil tilled by a rotary 1 and granular fertilizer passing through a hose 14 fed out from a fertilizer hopper 12 and dropped into the chisel 17 is applied from the opening of the chisel into soil and constituted so as to carrying out ridging and forming by a forming plate 20 to provide the objective intraridge row fertilizer applicator used by attaching to a vehicle such as tractor 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention can be used for application of basal fertilizer to crops cultivated with ridges.

[0002]

2. Description of the Related Art Basic fertilizers are applied to crops cultivated in ridges by sowing the entire surface of the ground before tilling the fields. After that, the ridges are cultivated with the rotary, and the fertilizer is dispersed throughout the ridges (Fig. 1).

[0003] In such a fertilization method, since the fertilizer spreads over the entire ridge, the fertilizer distributed outside the rhizosphere of the crop flows by rain or escapes into the air as gas, and the crop uses the fertilizer. The efficiency of absorption is not always high. This raises the cost of fertilizers and lowers the efficiency of fertilizer application as a problem of farmers' management. Environmental problems include groundwater, rivers, lakes and marshes.
It causes marine pollution and emission of global warming gas.

[0004] Therefore, there is a need for a machine for performing local fertilization, in which the fertilizer is concentrated in the rhizosphere of the crop to increase the efficiency of absorbing the fertilizer by the crop.

[0005] Fertilizers having such a purpose are disclosed in JP-B-36-23665, JP-B-42-1842, JP-A-4-356120, JP-A-5-15220, JP-A-5-84006, There are precedents described in Japanese Unexamined Patent Publication No. Hei 5-304801, but these are structures that use compressed air or augers to guide the fertilizer into the soil to avoid clogging that occurs at the part where the fertilizer is released into the soil. The fertilizer is complicated, and conversely, the structure is simple, so the clogging of fertilizer is easy to occur, the dispersion of fertilizer in the soil is large and the intended purpose cannot be achieved, or it is necessary to use a special liquid fertilizer. There was such a problem.

Further, there are known so-called side-row fertilizers having a structure mounted on a rice transplanter, but all of them are premised on use in paddy fields, and none can be used in fields.

[0007]

Therefore, there is a need for a fertilizer that has a simple structure and is capable of applying fertilizer with little dispersion and concentration in ridges without clogging with granular fertilizer.

[0008]

Means for Solving the Problems A chisel for guiding fertilizer into the soil and its opening are formed in an unconventional shape (FIG. 4), and ridges are formed after fertilization, so that the structure is simple and granular. Without clogging the fertilizer, fertilize the fertilizer into the furrow with less dispersion of fertilizer.

[0009]

[Function] A chisel is submerged in the soil tilled with a rotary, and the granular fertilizer which has been drawn out from the upper hopper by the drive of a motor or the like and dropped into the hollow chisel is applied to the soil from the opening of the chisel, and the fertilizer is ridged. Ridging and molding are performed with the left and right ridge forming plates so that they are at the center of the ridge. The applied fertilizer is distributed in a streak (FIG. 2) having a diameter of about 20 mm in the ridge.

The in-ridge local fertilizer having a series of actions is mounted on the rear of an agricultural towing vehicle such as a tractor and used.
Since three operations of tillage, fertilization, and ridge work can be performed at once, labor saving of agricultural work can be achieved.

[0011]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

In FIG. 3, reference numeral 1 denotes a rotary having a mast 2 which can be mounted on a tractor 4 via a three-point link hitch 3 of the tractor. A long main frame 5 is fixed to the mast 2 from side to side, and the upper ends of the chain case 6 and the bracket are fixed to both sides of the main frame 5, and a tilling shaft 7 is provided between the chain case 6 and the lower end of the bracket. It is suspended horizontally. A large number of tilling claws 8 are radially projected from the tilling shaft 7. The columns 9 and the frame 10 are fixed to each other slightly inside the both ends of the main frame 5.

A transmission is provided at an intermediate portion of the main frame 5, and an input shaft of the transmission is rotatably projected forward. An input from the tractor's PTO shaft to this shaft via a propeller shaft rotates the tilling shaft 7 via a transmission, a shaft in the main frame, and a chain in a chain case, and plows the soil in the field with the tilling claws 8.

A connecting frame 11 is horizontally fixed to the upper end of a column 9 erected on the left and right sides of the main frame 5, and a fertilizer hopper 12 is attached thereto. At the lower end of the fertilizer hopper 12, a feeding unit 13 driven by a motor is fixed. The upper end of the hose 14 is connected to the feeding portion, and the hose 14 is connected.
The fertilizer that has been drawn out falls under its own weight and guides the fertilizer to the chisel 17.

At the rear center of the left and right frames 10, both ends of the connecting frame 15 are fixed, and a column 16 is fixed to the connecting frame 15 downward, and a hollow chisel 17 is fixed to a lower end of the column 16. Adjustment of fertilization depth is chisel 17
The connecting frame 15 and the support 16
Is a structure that can be easily changed by being fixed with bolts or the like. Further, left and right connecting frames 18 are fixed to the rear ends of the left and right frames 10, respectively.
A column 19 is fixed downward, and a ridge-formed plate 20 and a gauge wheel 21 that rotates freely in the front-rear direction are fixed to the lower end of the column 19. Since the adjustment of the cultivation depth is performed by moving the gauge wheel 21 up and down, the support column 19 and the gauge wheel 21 are fixed by bolts or the like. In order to adjust the height of the ridge, the connecting frame 18 and the support 19 are fixed by bolts or the like.

In FIGS. 3 and 4, the chisel denoted by 17 is a chisel body 22 having an acute angle with an isosceles triangle so that the chisel indicated by 17 has a small resistance to advancing while diving in the soil plowed by the rotary. , The acute angle direction is defined as the front, and the base direction is defined as the rear. Side rectifying plates 23 are fixed to the left and right of the lower rear part of the chisel body, and upper rectifying plates 24 are fixed to the upper front of the side rectifying plates 23. Thus, the bottom surface between the bottom surface of the chisel body 22 and the left and right lateral rectifying plates 23 and the upper rear end between the left and right lateral rectifying plates 23 are integrally opened. In addition, a connection conduit 25 is fixed to the upper end of the chisel body 22, and the lower end of the hose 14 is connected and connected.

The hose 1 is fed from the fertilizer hopper 12 and
The fertilizer that has fallen into the inside of the chisel body 22 through the inside of the chisel body 22 to the bottom opening of the chisel body 22 is not clogged by soil because the side and upper straightening plates secure the space, and the tractor moves forward. By doing so, the fertilizer is surely fertilized into the soil one after another.

A ridge-formed plate 20 adjusted to the required ridge width and ridge height is fixed to the left and right rear of the chisel 17, and the tractor moves forward, so that the fertilizer applied in a streak shape is located at the center of the ridge. A ridge is set up to make it go.

[0019]

According to the present invention, when a prototype of the present invention is mounted on a tractor and cultivation, fertilization and ridge work are performed in a field, fertilization can be performed in a stripe shape having a diameter of 24 mm to 13 mm at an arbitrary depth in the ridge. And the dispersion of the fertilizer into the unintended soil was hardly observed.

When cabbage was cultivated by two conventional fertilization methods, namely, a fertilizer application method in which fertilizer is spread over the entire field, and a furrow application method according to the present invention, when both fertilization methods have a standard fertilization amount, cabbage is cultivated. Statistically, the yield was significantly higher with the application of fertilizer. 20% more than standard fertilization rate for furrow fertilization
Even when the% fertilizer was reduced, there was no statistical difference in yield between the conventional fertilization method and the standard fertilization rate.

The ratio of the fertilizer (particularly nitrogen fertilizer) applied by the conventional fertilizer application method in which the fertilizer is spread over the entire field and the fertilizer application method according to the present invention and absorbed by cabbage (fertilizer nitrogen utilization rate) was measured. In the conventional method, it was 59%,
With the in-row fertilization method, it was confirmed that the crop could absorb and use the fertilizer efficiently at 72%.

From the above test results, by using the present invention, it is possible to effectively absorb a small amount of fertilizer into crops, to reduce the cost of fertilizer, and to carry out environmental conservation type agriculture with less runoff of fertilizer. it can.

[Brief description of the drawings]

FIG. 1 is a distribution diagram of fertilizer on a ridge section obtained by a conventional fertilization method.

FIG. 2 is a distribution diagram of fertilizer on a ridge cross-section by the ridge-in-row fertilization method of the present invention.

FIG. 3 is a side view of the present invention.

FIG. 4 is a perspective view of a chisel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rotary 2 Mast 3 Three-point link hitch 4 Tractor 5 Main frame 6 Chain case 7 Tilling shaft 8 Tilling claw 9 Prop 10 Frame 11 Connection frame 12 Fertilizer hopper 13 Feeding part 14 Hose 15 Connection frame 16 Support 17 Chisel 18 Connection frame 19 Support DESCRIPTION OF SYMBOLS 20 Ridge forming board 21 Gauge foil 22 Chisel main body 23 Side rectifying plate 24 Upper rectifying plate 25 Connecting conduit 26 Crops 27 Ridge 28 Fertilizer

Claims (1)

[Claims] A hollow chisel having a straightening plate on the back and an opening at the bottom and at the rear of the straightening plate is submerged in the soil tilled by a rotary, fed out of an upper fertilizer hopper, passes through a hose, and passes through a hose. An in-row furrow fertilizer that is mounted on a vehicle such as a tractor and used to apply the granular fertilizer that has fallen into the ground through the chisel opening and to ridge and form it with a molded plate.