71:. The net cups are suspended above a reservoir of water containing essential nutrients in solution. Only the root tips are allowed to touch the surface of the reservoir. As the plant grows and depletes the water level, a gap of moist air will form and expand between the water surface and the base of the plant. The roots in this gap become laterally branching "oxygen roots," and absorb oxygen from the air inside the container. By the time the water level is fully depleted, the plant should be ready to harvest. Thus, in one growing cycle, no additional replenishment of water or nutrients is needed beyond the initial application.
923:
887:
911:
899:
48:
75:
95:
in 2009. In the article, Kratky discusses using floating pallets for commercial food production. Multiple plants are placed in net pots on boards that float atop a shared reservoir, with support beams slightly underneath the water level. As water is depleted, the boards eventually come to rest on the
38:
technique for growing plants suspended above a reservoir of nutrient-rich water. Because it is a non-circulating technique, no additional inputs of water or nutrients are needed after the original application, and no electricity, pumps, or water and oxygen circulation systems are required. The Kratky
96:
support beams, providing an air gap to allow oxygen intake. The Kratky method has also found popularity among home growers, and is often carried out on smaller scales in containers such as buckets and
39:
method has applications both for commercial food production and as a small-scale and low-maintenance technique for home growers. It has been described as "the simplest hydroponic system."
258:"Effects of Coconut Husk and Sphagnum Moss-Based Media on Growth and Yield of Romaine and Buttercrunch Lettuce ( Lactuca Sativa ) in a Non-Circulating Hydroponics System"
90:
211:
Kratky, Bernard (September 2010). "A suspended Net-Pot, Non-circulating
Hydroponic Method for Commercial Production of Leafy, Romaine, and Semi-Head Lettuce".
100:. The technique is designed for leafy vegetables that do not consume large amounts of water, so the water supply does not need to be continually replenished.
528:
494:
827:
440:"Lettuce ( Lactuca sativa L.) growth, yield and quality response to nitrogen fertilization in a non-circulating hydroponic system"
791:
370:"The effects of vermicompost tea on the growth and yield of lettuce and tomato in a non-circulating hydroponics system"
822:
521:
922:
622:
832:
690:
637:
548:
60:
891:
652:
514:
949:
817:
766:
451:
439:
381:
369:
324:
269:
86:
910:
642:
584:
257:
114:
35:
27:
Passive hydroponic technique for growing plants suspended above a reservoir of nutrient-rich water
685:
612:
475:
405:
350:
293:
109:
852:
761:
467:
397:
342:
285:
193:
157:
927:
867:
647:
459:
425:
Proc. Symposium on
Horticultural Production Under Structure. Taiwan Agr. Res. Inst. Taichung
389:
332:
277:
185:
147:
903:
231:
847:
657:
313:"3D Printable Hydroponics: A Digital Fabrication Pipeline for Soilless Plant Cultivation"
455:
385:
328:
273:
872:
438:
Mahlangu, R. I. S.; Maboko, M. M.; Sivakumar, D.; Soundy, P.; Jifon, J. (2016-10-14).
943:
796:
705:
607:
409:
180:
Kratky, B.A. (2009). "Three Non-Circulating
Hydroponic Methods for Growing Lettuce".
479:
354:
297:
837:
781:
710:
602:
537:
189:
56:
463:
393:
281:
915:
857:
812:
771:
740:
735:
667:
632:
579:
574:
337:
312:
842:
756:
725:
700:
569:
564:
471:
401:
346:
289:
197:
161:
17:
776:
680:
627:
152:
135:
97:
79:
862:
675:
64:
55:
Plants are placed in net cups filled with an inert growth medium such as
256:
Arancon, Norman Q.; Schaffer, Nicholas; Converse, Chad E. (2015-07-03).
715:
720:
695:
368:
Arancon, Norman Q.; Owens, John Dean; Converse, Chad (2019-11-26).
47:
786:
74:
73:
46:
730:
68:
510:
506:
423:
Imai, Hideo (1987). "AVRDC non-circulating hydroponic system".
85:
The method is named after
Bernard Kratky, a researcher at the
140:
International
Journal of Agricultural Science and Research
51:
A 2" net pot, which can be used as part of a Kratky system
78:
Three lettuce plants grown using the Kratky method in
805:
749:
666:
595:
557:
136:"Study of Hydroponic Systems and their Variations"
89:, who first proposed the method in the journal
522:
8:
529:
515:
507:
336:
151:
126:
232:"Hydroponics: Should We Think Small?"
7:
898:
175:
173:
171:
499:(Thesis). University of Cincinnati.
828:Controlled-environment agriculture
25:
496:Towards a Hydroponic Architecture
134:Arun Maurya; et al. (2017).
921:
909:
897:
886:
885:
230:Atkinson, Nigel (5 July 2018).
190:10.17660/actahortic.2009.843.6
1:
464:10.1080/01904167.2016.1187739
394:10.1080/01904167.2019.1655049
792:Ultrasonic hydroponic fogger
282:10.1080/01904167.2014.983117
338:10.1109/ACCESS.2019.2905233
966:
823:Aquaculture of sea sponges
444:Journal of Plant Nutrition
374:Journal of Plant Nutrition
262:Journal of Plant Nutrition
881:
544:
833:Historical hydroculture
691:Expanded clay aggregate
638:Nutrient film technique
549:Historical hydroculture
153:10.24247/ijasroct201764
61:expanded clay aggregate
493:Martin, Colin (2019).
82:
52:
653:Sub-irrigated planter
311:Takeuchi, Y. (2019).
77:
50:
818:Aquaculture of coral
767:Irrigation sprinkler
87:University of Hawaii
643:Organic hydroponics
456:2016JPlaN..39.1766M
386:2019JPlaN..42.2447A
329:2019IEEEA...735863T
274:2015JPlaN..38.1218A
115:Passive hydroponics
686:Diatomaceous earth
613:Deep water culture
182:Acta Horticulturae
110:Deep water culture
92:Acta Horticulturae
83:
53:
36:passive hydroponic
937:
936:
853:Plant propagation
762:Hydroponic dosers
450:(12): 1766–1775.
380:(19): 2447–2458.
16:(Redirected from
957:
925:
913:
901:
900:
889:
888:
868:Vertical farming
806:Related concepts
531:
524:
517:
508:
501:
500:
490:
484:
483:
435:
429:
428:
420:
414:
413:
365:
359:
358:
340:
308:
302:
301:
268:(8): 1218–1230.
253:
247:
246:
236:
227:
221:
220:
208:
202:
201:
177:
166:
165:
155:
131:
21:
965:
964:
960:
959:
958:
956:
955:
954:
940:
939:
938:
933:
877:
848:Plant nutrition
801:
745:
662:
591:
553:
540:
535:
505:
504:
492:
491:
487:
437:
436:
432:
422:
421:
417:
367:
366:
362:
323:: 35863–35873.
310:
309:
305:
255:
254:
250:
234:
229:
228:
224:
213:Vegetable Crops
210:
209:
205:
179:
178:
169:
133:
132:
128:
123:
106:
45:
28:
23:
22:
15:
12:
11:
5:
963:
961:
953:
952:
942:
941:
935:
934:
932:
931:
919:
907:
895:
882:
879:
878:
876:
875:
873:Water aeration
870:
865:
860:
855:
850:
845:
840:
835:
830:
825:
820:
815:
809:
807:
803:
802:
800:
799:
794:
789:
784:
779:
774:
769:
764:
759:
753:
751:
747:
746:
744:
743:
738:
733:
728:
723:
718:
713:
708:
703:
698:
693:
688:
683:
678:
672:
670:
664:
663:
661:
660:
655:
650:
645:
640:
635:
630:
625:
620:
615:
610:
605:
603:Aquatic garden
599:
597:
593:
592:
590:
589:
588:
587:
577:
572:
567:
561:
559:
555:
554:
552:
551:
545:
542:
541:
536:
534:
533:
526:
519:
511:
503:
502:
485:
430:
415:
360:
303:
248:
222:
203:
184:(843): 65–72.
167:
146:(5): 547–556.
125:
124:
122:
119:
118:
117:
112:
105:
102:
44:
41:
26:
24:
14:
13:
10:
9:
6:
4:
3:
2:
962:
951:
948:
947:
945:
930:
929:
924:
920:
918:
917:
912:
908:
906:
905:
896:
894:
893:
884:
883:
880:
874:
871:
869:
866:
864:
861:
859:
856:
854:
851:
849:
846:
844:
841:
839:
836:
834:
831:
829:
826:
824:
821:
819:
816:
814:
811:
810:
808:
804:
798:
797:Water chiller
795:
793:
790:
788:
785:
783:
780:
778:
775:
773:
770:
768:
765:
763:
760:
758:
755:
754:
752:
748:
742:
739:
737:
734:
732:
729:
727:
724:
722:
719:
717:
714:
712:
709:
707:
704:
702:
699:
697:
694:
692:
689:
687:
684:
682:
679:
677:
674:
673:
671:
669:
665:
659:
656:
654:
651:
649:
648:OrganopĂłnicos
646:
644:
641:
639:
636:
634:
631:
629:
626:
624:
621:
619:
618:Kratky method
616:
614:
611:
609:
608:Bottle garden
606:
604:
601:
600:
598:
594:
586:
583:
582:
581:
578:
576:
573:
571:
568:
566:
563:
562:
560:
556:
550:
547:
546:
543:
539:
532:
527:
525:
520:
518:
513:
512:
509:
498:
497:
489:
486:
481:
477:
473:
469:
465:
461:
457:
453:
449:
445:
441:
434:
431:
426:
419:
416:
411:
407:
403:
399:
395:
391:
387:
383:
379:
375:
371:
364:
361:
356:
352:
348:
344:
339:
334:
330:
326:
322:
318:
314:
307:
304:
299:
295:
291:
287:
283:
279:
275:
271:
267:
263:
259:
252:
249:
244:
240:
239:CPQ Nutrition
233:
226:
223:
218:
214:
207:
204:
199:
195:
191:
187:
183:
176:
174:
172:
168:
163:
159:
154:
149:
145:
141:
137:
130:
127:
120:
116:
113:
111:
108:
107:
103:
101:
99:
94:
93:
88:
81:
76:
72:
70:
66:
65:sphagnum moss
62:
58:
49:
42:
40:
37:
33:
32:Kratky method
19:
18:Kratky Method
926:
914:
902:
890:
838:Hydroponicum
782:Spray nozzle
711:Mineral wool
623:Ebb and flow
617:
538:Hydroculture
495:
488:
447:
443:
433:
424:
418:
377:
373:
363:
320:
316:
306:
265:
261:
251:
242:
238:
225:
216:
212:
206:
181:
143:
139:
129:
91:
84:
69:coconut coir
54:
31:
29:
950:Hydroponics
928:Wikiversity
858:Rhizosphere
813:Algaculture
772:Leaf sensor
750:Accessories
736:Vermiculite
633:Microponics
580:Hydroponics
575:Aquascaping
317:IEEE Access
43:Description
843:Paludarium
757:Grow light
741:Wood fibre
726:Rice hulls
701:Growstones
668:Substrates
570:Aquaponics
565:Aeroponics
121:References
98:mason jars
80:mason jars
916:Wikibooks
706:Lava rock
681:Coco peat
628:Fogponics
472:0190-4167
410:202033113
402:0190-4167
347:2169-3536
290:0190-4167
198:0567-7572
162:2250-0057
57:rock wool
944:Category
892:Category
863:Root rot
676:Charcoal
658:Top drip
596:Subtypes
480:98992424
355:88483258
298:96894960
104:See also
904:Commons
777:Net-pot
716:Perlite
585:passive
452:Bibcode
382:Bibcode
325:Bibcode
270:Bibcode
245:(3): 8.
787:Timers
721:Pumice
696:Gravel
478:
470:
408:
400:
353:
345:
296:
288:
196:
160:
558:Types
476:S2CID
406:S2CID
351:S2CID
294:S2CID
235:(PDF)
67:, or
34:is a
731:Sand
468:ISSN
398:ISSN
343:ISSN
286:ISSN
194:ISSN
158:ISSN
30:The
460:doi
390:doi
333:doi
278:doi
186:doi
148:doi
946::
474:.
466:.
458:.
448:39
446:.
442:.
404:.
396:.
388:.
378:42
376:.
372:.
349:.
341:.
331:.
319:.
315:.
292:.
284:.
276:.
266:38
264:.
260:.
241:.
237:.
215:.
192:.
170:^
156:.
142:.
138:.
63:,
59:,
530:e
523:t
516:v
482:.
462::
454::
427:.
412:.
392::
384::
357:.
335::
327::
321:7
300:.
280::
272::
243:1
219:.
217:1
200:.
188::
164:.
150::
144:7
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
