Computer Controlled Fertigation System and Method

• US 20080097653A1
• Filed: 04/13/2007
• Published: 04/24/2008
• Est. Priority Date: 12/20/2004
• Status: Active Grant

• Current Assignee: BLUM AG Tec LLC
• Original Assignee: FW Enviro, LLC
• Inventors: Aivazian, Bryan, Kaprielian, Craig
• Granted Patent: US 7,809,475 B2
• Time in Patent Office: Days
• US Class Current: 700/284
• CPC Class Codes: A01C 23/042 Adding fertiliser to watering systems
• CPC Class Codes: Y02P 60/21 Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
• CPC Class Codes: Y10T 137/189 Soil moisture sensing

Abstract

A system and a method of computer controlled irrigation and fertigation composed of one or more sensors positioned in order to quantify the amount of water and/or nutrients that a plant is consuming. By controlling the fertigation, the plant or a part thereof, has improved yield and quality.

Claims

1. A method of fertigation comprising the steps of growing a plant in a plant container;

providing at least one sensor for measuring the total water consumption by the plant in the plant container;

analyzing data from said at least one sensor to determine the amount of water and nutrients to be delivered to the plant; and

delivering the determined amount of water and nutrients to the plant by an irrigation device at a predetermined schedule.

2. The method of fertigation according to claim 1, wherein said plant is selected from the group consisting of angiosperms, gymnosperms and pteridophytes.

3. The method of fertigation according to claim 1, wherein said plant container is separated from the soil.

4. The method of fertigation according to claim 3, wherein said plant container is separated from the underlying soil by elevating the plant container.

5. The method of fertigation according to claim 1 further comprising at least one sensor for measuring the amount of water delivered to the plant.

6. The method of fertigation according to claim 1 further comprising at least one sensor for measuring the amount of excess water from the plant container.

7. The method of fertigation according to claim 1 further comprising at least one sensor for measuring the chemical content of excess water from the plant container.

8. The method of fertigation according to claim 1 further comprising at least one sensor to measure the amount of water available to the plant.

9. The method of fertigation according to claim 5, wherein said sensor is a liquid volume gauge.

10. The method of fertigation according to claim 6, wherein said sensor is a liquid volume gauge.

11. The method of fertigation according to claim 8, wherein said sensor is a scale.

12. The method of fertigation according to claim 7 further comprising at least one collection container for measurement of chemical content of excess water from said plant container.

13. The method according to claim 12 further comprising at least one sensor for measuring chemical content of said excess water.

14. The method of fertigation according to claim 1 further comprising at least one sensor to measure the total amount of water delivered to the plant, at least one sensor to measure excess water, at least one sensor to measure the total amount of water available to the plant and at least one sensor for the measurement of the chemical content.

15. The method of fertigation according to claim 1, wherein data from said at least one sensor is analyzed by a central processing unit.

16. The method of fertigation according to claim 15, wherein said analysis from said central processing unit determines the timing of irrigation events.

17. The method of fertigation according to claim 15, wherein the analysis from said central processing unit determines the amount of water to be applied during an irrigation event.

18. The method of fertigation according to claim 15, wherein the analysis from said central processing unit is used in preparing the concentration of each nutritional component.

19. The method of fertigation according to claim 1, wherein said irrigation device is a drip irrigation line.

20. The method of fertigation according to claim 1 further comprising the step of periodically flushing the plant container.

21. The method of fertigation according to claim 1 further comprising at least one additional sensor from the group consisting of a soil moisture sensor, a stem diameter sensor, a fruit diameter sensor, a leaf temperature sensor, a relative rate sap sensor, an infrared sensor, a near-infrared sensor and a stem auxanometer.

22. The method of fertigation according to claim 1, wherein the plant or a part thereof, has an average increased nutrient value greater than 5%.

23. The method of fertigation according to claim 1, wherein the plant or a part thereof, has improved yield per acre.

24. The method of fertigation according to claim 1, wherein the plant or a part thereof, has improved quality.

25. The method of fertigation according to claim 1, wherein harvest of the fruit, nut, plant or a part thereof, occurs 30% earlier than conventional methods.

26. The method of fertigation according to claim 1, wherein the use of insecticides, herbicides, fungicides and pesticides is significantly less than that of conventional methods.

27. The method of fertigation according to claim 1, wherein the plant or a part thereof, is less susceptible to pest, fungal and insect infestations.

28. A fertigation system comprising a central processing unit;

at least one sensor for measuring total water consumption by a plant in a plant container;

a first communication device to send data from said at least one sensor to the central processing unit;

at least one mixing tank containing nutrients and water;

at least one injector;

a second communication device to send instructions from the central processing unit to said at least one injector;

an irrigation device for delivering water and nutrients to the plant;

wherein the central processing unit analyzes the data from said at least one sensor and controls fertigation by determining the amount of water and nutrients to be delivered to the plant and instructing said at least one injector to deliver water and nutrients from said at least one mixing tank to the plant through the irrigation device.

29. The fertigation system according to claim 28, wherein said plant container is separated from the soil.

30. The fertigation system according to claim 29, wherein said plant container is separated from the underlying soil by elevating the plant container.

31. The fertigation system according to claim 28 further comprising at least one sensor for measuring the total amount of water delivered to the plant.

32. The fertigation system according to claim 28 further comprising at least one sensor for measuring the amount of excess water from the plant container.

33. The fertigation system according to claim 28 further comprising at least one sensor for measuring the chemical content of the excess water from the plant container.

34. The fertigation system according to claim 28 further comprising at least one sensor to measure the total amount of water available to the plant.

35. The fertigation system according to claim 31, wherein said sensor is a liquid volume gauge.

36. The fertigation system according to claim 32, wherein said sensor is a liquid volume gauge.

37. The fertigation system according to claim 34, wherein said sensor is a scale.

38. The fertigation system according to claim 33 further comprising at least one collection container for the measurement of chemical content of excess water from the plant container.

39. The fertigation system according to claim 38 further comprising at least one sensor for measuring chemical content of said excess water.

40. The fertigation system according to claim 28 further comprising at least one sensor to measure total amount of water delivered to said plant, at least one sensor to measure the total amount of excess water, at least sensor to measure the total amount of water available to the plant and at least one sensor for measurement of the chemical content.

41. The fertigation system according to claim 28, wherein data from at least one sensor is analyzed by said central processing unit.

42. The fertigation system according to claim 41, wherein the analysis from said central processing unit determines the timing of irrigation events.

43. The fertigation system according to claim 41, wherein the analysis from said central processing unit determines the amount of water to be applied during an irrigation event.

44. The fertigation system according to claim 41, wherein the analysis from said central processing unit is used in preparing the concentration of each nutritional component.

45. The fertigation system according to claim 28, wherein said irrigation device is a drip irritation line.

46. The fertigation system according to claim 28, wherein the plant container is periodically flushed.

47. The fertigation system according to claim 28 further comprising at least one additional sensor from the group consisting of a soil moisture sensor, a stem diameter sensor, a fruit diameter sensor, a leaf temperature sensor, a relative-rate sap sensor, an infrared sensor, a near-infrared sensor and an auxanometer.

48. A method of fertigation comprising the steps of growing a plant in an elevated berm;

providing at least one sensor for measuring the total water consumption by the plant in the elevated berm;

analyzing data from said at least one sensor to determine the amount of water and nutrients to be delivered to the plant; and

delivering the determined amount of water and nutrients to the plant by an irrigation device at a predetermined schedule.

49. The method of fertigation according to claim 48 further comprising at least one sensor from the group consisting of a soil moisture sensor, a stem diameter sensor, a fruit diameter sensor, a leaf temperature sensor, a relative-rate sap sensor, an infrared sensor, a near-infrared sensor and a stem auxanometer.

50. The method of fertigation according to claim 48, wherein data from at least one sensor is analyzed by a central processing unit.

51. The method of fertigation according to claim 48, wherein the analysis from said central processing unit determines the timing of irrigation events.

52. The method of fertigation according to claim 48, wherein the analysis from said central processing unit determines the amount of water to be applied during an irrigation event.

53. The method of fertigation according to claim 48, wherein the analysis from said central processing unit is used in preparing the concentration of each nutritional component.

54. The method of fertigation according to claim 48, wherein said irrigation device is a drip irritation line.

55. A fertigation system comprising a central processing unit;

at least one sensor for measuring total water consumption by a plant in an elevated berm;

a first communication device to send data from said at least one sensor to the central processing unit;

at least one mixing tank containing nutrients and water;

at least one injector;

a second communication device to send instructions from the central processing unit to said at least one injector;

an irrigation device for delivering water and nutrients to the plant;

wherein the central processing unit analyzes the data from said at least one sensor and controls fertigation by determining the amount of water and nutrients to be delivered to the plant and instructing said at least one injector to deliver water and nutrients from said at least one mixing tank to the plant through the irrigation device.

56. The fertigation system according to claim 55 further comprising at least one additional sensor from the group consisting of a soil moisture sensor, a stem diameter sensor, a fruit diameter sensor, a leaf temperature sensor, a relative-rate sap sensor, an infrared sensor, a near-infrared sensor and a stem auxanometer.

57. The fertigation system according to claim 55, wherein data from at least one sensor is analyzed by said central processing unit.

58. The fertigation system according to claim 55, wherein the analysis from said central processing unit determines the timing of irrigation events.

59. The fertigation system according to claim 55, wherein the analysis from said central processing unit determines the amount of water to be applied during an irrigation event.

60. The fertigation system according to claim 55, wherein the analysis from said central processing unit is used in preparing the concentration of each nutritional component.

61. The fertigation system according to claim 55, wherein said irrigation device is a drip irritation line.