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Nitrogen Fertilizers For Corn, Lloyd Dumenil Jul 1952

Nitrogen Fertilizers For Corn, Lloyd Dumenil

Bulletin P

Lack of nitrogen limits corn production on most Iowa soils. Many Iowa farmers can use nitrogen fertilizer profitably, our experiments show. As the supply increases, much more nitrogen fertilizer will be used— on a larger number of acres and at higher rates per acre.

Many of you have used nitrogen fertilizer on corn. But many more of you will be using nitrogen in the future. The Iowa Agricultural Experiment Station has conducted over 200 experiments with nitrogen fertilizer on cornfields over the state since 1943. It is the purpose of this bulletin to give you the information gathered from these ...


The 1951 Iowa Corn Yield Test, Joe L. Robinson, Charles D. Hutchcroft Feb 1952

The 1951 Iowa Corn Yield Test, Joe L. Robinson, Charles D. Hutchcroft

Bulletin P

The Iowa corn yield test has been conducted annually since 1920 by the Iowa Corn and Small Grain Growers’ Association in cooperation with the Iowa Agricultural Experiment Station. In 1951 the Iowa Com and Small Grain Growers’ Association was combined with the Iowa Crop Improvement Association. This change became effective July 4, 1951.

The majority of hybrids tested in the Iowa Com Yield Test were entered voluntarily by commercial hybrid corn companies. In addition, several hybrids were tested for the Agronomy (Farm Crops) Department and U.S.D.A. and for the Iowa Crop Improvement Association. The Iowa Crop Improvement ...


Barley Scab, William Courtney Haskett Jan 1952

Barley Scab, William Courtney Haskett

Retrospective Theses and Dissertations

No abstract provided.


Fertility, Parent-Progeny And Progeny Test Comparisons Of Selected Clones Of Orchardgrass, Dactylis Glomerata L. , Robert Cecil Leffel Jan 1952

Fertility, Parent-Progeny And Progeny Test Comparisons Of Selected Clones Of Orchardgrass, Dactylis Glomerata L. , Robert Cecil Leffel

Retrospective Theses and Dissertations

No abstract provided.


Cytology Of Megasporogenesis As A Basis For Sterility In Autotetraploid Sweetclover, Melilotus Alba, Bidhan Chandra Das Jan 1952

Cytology Of Megasporogenesis As A Basis For Sterility In Autotetraploid Sweetclover, Melilotus Alba, Bidhan Chandra Das

Retrospective Theses and Dissertations

No abstract provided.


Some Effects Of Plant Growth Regulants , Otto Louis Hoffmann Jan 1952

Some Effects Of Plant Growth Regulants , Otto Louis Hoffmann

Retrospective Theses and Dissertations

No abstract provided.


Physiologic Specialization And Inheritance Of Resistance To Specific Races Of Puccinia Coronata Corda Var. Avenae F. & L., Marr Dixon Simons Jan 1952

Physiologic Specialization And Inheritance Of Resistance To Specific Races Of Puccinia Coronata Corda Var. Avenae F. & L., Marr Dixon Simons

Retrospective Theses and Dissertations

No abstract provided.


Physiology Of Dwarfing In Apple , Malcolm Niven Dana Jan 1952

Physiology Of Dwarfing In Apple , Malcolm Niven Dana

Retrospective Theses and Dissertations

No abstract provided.


Inheritance And Interrelationships Of Some Maize Ear Characters , Kenneth Kopf Jan 1952

Inheritance And Interrelationships Of Some Maize Ear Characters , Kenneth Kopf

Retrospective Theses and Dissertations

No abstract provided.


Growth Of The Potato Tuber , Philip Heath Plaisted Jan 1952

Growth Of The Potato Tuber , Philip Heath Plaisted

Retrospective Theses and Dissertations

No abstract provided.


Volutella Species On Alfalfa, John Edward Chilton Jan 1952

Volutella Species On Alfalfa, John Edward Chilton

Retrospective Theses and Dissertations

No abstract provided.


Crop Variety Response To Exogenous Growth Regulators: Ii. Inheritance Of Differential Response In Corn And Oats , James Henry Williams Jr. Jan 1952

Crop Variety Response To Exogenous Growth Regulators: Ii. Inheritance Of Differential Response In Corn And Oats , James Henry Williams Jr.

Retrospective Theses and Dissertations

No abstract provided.


Factors Affecting Randomness Of Mating In Isolated Polycross Plantings Of Maize, Mario Gutiérrez Gutiérrez Jan 1952

Factors Affecting Randomness Of Mating In Isolated Polycross Plantings Of Maize, Mario Gutiérrez Gutiérrez

Retrospective Theses and Dissertations

No abstract provided.


Some Cytogenetic Aspects Of Maize Monoploids And Monoploid Derivatives, Leola E. Ford Jan 1952

Some Cytogenetic Aspects Of Maize Monoploids And Monoploid Derivatives, Leola E. Ford

Retrospective Theses and Dissertations

No abstract provided.


Some Effects Of Organic Fungicides On The Germination And Respiration Of Myrothecium Verrucaria , Alma Toevs Walker Jan 1952

Some Effects Of Organic Fungicides On The Germination And Respiration Of Myrothecium Verrucaria , Alma Toevs Walker

Retrospective Theses and Dissertations

No abstract provided.


Photosynthesis In The Potato, Solanum Tuberosum L , Harold W. Chapman Jan 1952

Photosynthesis In The Potato, Solanum Tuberosum L , Harold W. Chapman

Retrospective Theses and Dissertations

No abstract provided.


Nature And Inheritance Of Male-Sterility In The Onion Variety, Scott County Globe , Richard Lloyd Foskett Jan 1952

Nature And Inheritance Of Male-Sterility In The Onion Variety, Scott County Globe , Richard Lloyd Foskett

Retrospective Theses and Dissertations

No abstract provided.


Stalk Rot Development In Corn Following The European Corn Borer , Gordon Stevens Taylor Jan 1952

Stalk Rot Development In Corn Following The European Corn Borer , Gordon Stevens Taylor

Retrospective Theses and Dissertations

No abstract provided.


Floral Induction And Development In Orchardgrass, Franklin Pierce Gardner Jan 1952

Floral Induction And Development In Orchardgrass, Franklin Pierce Gardner

Retrospective Theses and Dissertations

No abstract provided.