Warren Kim SİAROT, Romel ARMECİN, Dhenber LUSANTA

Determination of Critical Potassium Concentration of Corn (Zea Maize L.) at Early Stage of Growth Using Flood and Drain Technique

Critical nutrient concentration is defined as the level that results in 90% of maximum yield or growth which can also be used as a basis in formulating recommendations. An experiment using hydroponically grown corn to determine the critical potassium concentration at its early stage of growth and to assess the suitability of the flood and drain technique. Five (5) treatments used in the experiment which consist of different levels of potassium using KCl arranged in a Completely Randomized Design. There was no significant difference observed in biomass and potassium content of the plant tissue. On the other hand, critical potassium concentration was observed in 2.1% which correlates to the plant biomass and has an r-value of 0.99. This finding suggests that the flood and drain technique is suitable in determining the critical potassium concentration of corn and also this could be useful to an experiment that also involves CNC determination.

Keywords:

critical K concentration, corn, flood and drain technique/ebb and flow system,

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Alsaeedi, A.H., & A.M. Elprince. 2000. Critical phosphorus level for salicornia growth. Water studies center, King Faisal Univeristy, Saudi Arabia. 336-345 pp.
Amanullah, Asiflqbal, Lrfanullah & Z.Hidayat. 2016. Potassium management for improving growth and grain yield of maize under moisture stress condition. The University of Agriculture, Peshawar, Pakistan. 1-12pp.
Boda, N. C. 1965. Pattern of intercropping peanut with corn and their overall influence of the agronomic yield as well as the characteristics of these crops. Undergrad thesis, UPCA. 13pp.
Cox, F.R., & J.S.Barnes. 2006. Peanut, corn, and cotton critical levels for phosphorus and potassium on goldsbro soil. Soil Science Department, North Carolina State University. 1173-186 pp.
Lal, R. (2017). Plant Nutrients: Sufficiency and Requirements. Encyclopedia of Soil Science, Third Edition, 1735–1739. https://doi.org/10.1081/e-ess3-120042731
Wang M., Q. Shen, Q. Zheng, S. Guo. 2013. The critical role of potassium in plant response. Agricultural ministry key lab of plant nutrition and fertilization. Nanjing agricultural university.7370-7390 pp.
Succesful Farming. 1996. Taking a closer look at where corn is going. In: Compiled Successful Farming Magazines. 94 (2):56.
Taiz, L. and Zeiger, E. (2002) Plant Physiology 3rd edition Sinaver Associates, Inc., Publishers Sunderland, Massachusetts.
PCARR. 1975. The Philippine Recommends for Corn. U.P. Los Baños, Laguna, Philippines. 176.