| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
Dep. of Agronomy, Iowa State Univ., Ames, IA 50011
(formerly Iowa State Univ. Dep. of Agronomy), Fac. de Agronomía, Av. Garzón 780, Montevideo, Uruguay
Dep. of Agronomy, Iowa State Univ., Ames, IA 50011
* Corresponding author (apmallar{at}iastate.edu).
Early plant growth and grain yield of no-till corn (Zea mays L.) are usually lower than for conventionally tilled corn in the northern U.S. Corn Belt. Root-zone fertilization is likely to enhance early growth and increase yields. This study evaluated the effects of P and K placement on early growth and P and K uptake of no-till corn, and on relationships between these effects and grain yield response to placement. Ten long-term P and K trials (5 trials each, P and K) were established in 1994 at five research centers and were evaluated for 3 yr;, 11 1-yr P-K trials were established in farmers' fields (1994–1996). Treatments several P and K rates (0–56 kg P ha–1; 0–132 kg K ha–1) banded with the planter 5 cm beside and below the seeds and broadcast or deep-banded at a 13- to 18-cm depth before planting. Soil samples were collected before applying the treatments from the 0- to 7.5-cm and 7.5- to 15-cm depths. Soil-test P (0-15 cm) ranged from very low to very high across sites and soil-test K ranged from optimum to very high. Banded P (deep or shallow) increased early growth and P uptake more than the broadcast placement did at most trials. Phosphorus increased yields only in very low and low testing soils, and there was no response to P placement. Banded K (deep or shallow) seldom affected early growth, but usually increased K uptake. Potassium increased yields in several soils that tested optimum or higher in soiltest K, and yields were higher when K was deep banded. Planting onto a fall-applied coulter-knife track without applying P or K often increased early growth and nutrient uptake, but seldom increased yields. Early growth and nutrient uptake responses to banded P did not translate into higher yields. Small but frequent yield responses to deep-banded K were not related to increased early growth, but could be partly explained by increased K uptake. Judging potential effects of P and K placement on grain yields of no-till corn based on effects (or lack of effect) on early growth may be misleading for soils that are not extremely deficient in these nutrients.
Received for publication November 19, 1997.
This article has been cited by other articles:
|
|
 |
|
  M. Al-Kaisi and D. Kwaw-Mensah Effect of Tillage and Nitrogen Rate on Corn Yield and Nitrogen and Phosphorus Uptake in a Corn-Soybean Rotation Agron. J., October 15, 2007; 99(6): 1548 - 1558. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. P. Garcia, C. S. Wortmann, M. Mamo, R. Drijber, and D. Tarkalson One-Time Tillage of No-Till: Effects on Nutrients, Mycorrhizae, and Phosphorus Uptake Agron. J., June 26, 2007; 99(4): 1093 - 1103. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
G. J. Schwab, D. A. Whitney, G. L. Kilgore, and D. W. Sweeney Tillage and Phosphorus Management Effects on Crop Production in Soils with Phosphorus Stratification Agron. J., April 11, 2006; 98(3): 430 - 435. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 A. P. Mallarino and R. Borges Phosphorus and Potassium Distribution in Soil Following Long-Term Deep-Band Fertilization in Different Tillage Systems Soil Sci. Soc. Am. J., February 27, 2006; 70(2): 702 - 707. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. R. Heckman, W. Jokela, T. Morris, D. B. Beegle, J. T. Sims, F. J. Coale, S. Herbert, T. Griffin, B. Hoskins, J. Jemison, et al. Soil Test Calibration for Predicting Corn Response to Phosphorus in the Northeast USA Agron. J., February 7, 2006; 98(2): 280 - 288. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
B. L. Allen and A. P. Mallarino Relationships between Extractable Soil Phosphorus and Phosphorus Saturation after Long-Term Fertilizer or Manure Application Soil Sci. Soc. Am. J., February 2, 2006; 70(2): 454 - 463. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
C. S. Wortmann, S. A. Xerinda, M. Mamo, and C. A. Shapiro No-Till Row Crop Response to Starter Fertilizer in Eastern Nebraska: I. Irrigated and Rainfed Corn Agron. J., January 5, 2006; 98(1): 156 - 162. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
C. S. Wortmann, S. A. Xerinda, and M. Mamo No-Till Row Crop Response to Starter Fertilizer in Eastern Nebraska: II. Rainfed Grain Sorghum Agron. J., January 5, 2006; 98(1): 187 - 193. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D. E. Kaiser, A. P. Mallarino, and M. Bermudez Corn Grain Yield, Early Growth, and Early Nutrient Uptake as Affected by Broadcast and In-Furrow Starter Fertilization Agron. J., March 1, 2005; 97(2): 620 - 626. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. Bermudez and A. P. Mallarino Corn Response to Starter Fertilizer and Tillage across and within Fields Having No-Till Management Histories Agron. J., May 1, 2004; 96(3): 776 - 785. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. A. Vetsch and G. W. Randall Corn Production as Affected by Nitrogen Application Timing and Tillage Agron. J., March 1, 2004; 96(2): 502 - 509. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
G. W. Rehm and J. A. Lamb Impact of Banded Potassium on Crop Yield and Soil Potassium in Ridge-Till Planting Soil Sci. Soc. Am. J., March 1, 2004; 68(2): 629 - 636. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D. J. Wittry and A. P. Mallarino Comparison of Uniform- and Variable-Rate Phosphorus Fertilization for Corn-Soybean Rotations Agron. J., January 1, 2004; 96(1): 26 - 33. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. Bermudez and A. P. Mallarino Yield and Early Growth Responses to Starter Fertilizer in No-Till Corn Assessed with Precision Agriculture Technologies Agron. J., September 1, 2002; 94(5): 1024 - 1033. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. M. Atia and A. P. Mallarino Agronomic and Environmental Soil Phosphorus Testing in Soils Receiving Liquid Swine Manure Soil Sci. Soc. Am. J., September 1, 2002; 66(5): 1696 - 1705. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. A. Vetsch and G. W. Randall Corn Production as Affected by Tillage System and Starter Fertilizer Agron. J., May 1, 2002; 94(3): 532 - 540. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. J. Vyn and K. J. Janovicek Potassium Placement and Tillage System Effects on Corn Response following Long-Term No Till Agron. J., May 1, 2001; 93(3): 487 - 495. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R. Borges and A. P. Mallarino Deep Banding Phosphorus and Potassium Fertilizers for Corn Managed with Ridge Tillage Soil Sci. Soc. Am. J., March 1, 2001; 65(2): 376 - 384. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R. Borges and A. P. Mallarino Grain Yield, Early Growth, and Nutrient Uptake of No-Till Soybean as Affected by Phosphorus and Potassium Placement Agron. J., March 1, 2000; 92(2): 380 - 388. [Abstract] [Full Text]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| The SCI Journals | Crop Science | Vadose Zone Journal | |||
| Journal of Natural Resources and Life Sciences Education |
Soil Science Society of America Journal | ||||
| Journal of Plant Registrations | Journal of Environmental Quality |
The Plant Genome | |||
