COMPACTION IN COTTON BEDS - MEASUREMENTS, MODELLING AND MANAGEMENT
By Michel Fok on Mar 10, 2017

Agronomy & physiology WCRC Agro-physio-australia WCRC1

Abstract                                                                         Back to Table of contents We used field measurements and computer modelling of soil compaction to investigate management options for trafficking cotton beds. In the field, we measured the influence of vehicles on vertical stresses in the soil and the consequent c...

FOLIAR APPLICATION FOR YIELD AND QUALITY OF COTTON GROWN ON KAMPANG SAEN SOIL IN THAILAND
By Michel Fok on Mar 10, 2017

Agronomy & physiology WCRC Agro-physio-Asia WCRC1

Abstract                                                                         Back to Table of contents A comparative study on conventional fertilizer application and foliar fertilizer application of cotton grown on Kampaeng Saen soils (Udic Haplustalffs) was conducted for five years during 1986-1990. The results revealed that fertilizers app...

IMPROVEMENTS IN WATER USE EFFICIENCY IN IRRIGATED COTTON: CHOICES IN SYSTEMS AND MANAGEMENT
By Michel Fok on Mar 10, 2017

Agronomy & physiology WCRC Agro-Physio-north-america WCRC1

Abstract                                                                         Back to Table of contents Major factors (crop, soil, topography, labor and management availability and skill, environmental concerns, regulatory controls, economic) influencing irrigation efficiency, water use efficiency and the choice of appropriate irrigation syst...

MANAGEMENT OF LABLAB PURPUREUS L. RESIDUES IN COTTON-BASED FARMING SYSTEMS AND CONSEQUENT EFFECTS ON PROPERTIES OF A TYPIC PELLUSTERT
By Michel Fok on Mar 10, 2017

Agronomy & physiology WCRC Agro-physio-australia WCRC1

Abstract                                                                         Back to Table of contents The effects of mulching or incorporating residues of dolichos (Lablab purpureus L.), sown in rotation with cotton (Gossypium hirsutum L.), in broad (1.5 m wide) beds on soil properties of a Vertisol was studied in Northern New South Wales,...

THE PRINCIPLES OF COTTON WATER RELATIONS AND THEIR APPLICATION IN MANAGEMENT
By Michel Fok on Mar 10, 2017

Agronomy & physiology WCRC Agro-physio-australia WCRC1

Abstract                                                                         Back to Table of contents The keys to understanding the principles of water relations that are specific to cotton are found in: (i) the ecology of the wild ancestors of cotton  (xerophytic shrubs), (ii) the basic pattern of development (the orderly and regular produ...

PROBLEMS ASSOCIATED WITH SOIL STRUCTURAL ASSESSMENT ON VERTISOLS USED FOR IRRIGATED COTTON PRODUCTION
By Michel Fok on Mar 10, 2017

Agronomy & physiology WCRC Agro-physio-australia WCRC1

Abstract                                                                         Back to Table of contents Techniques for assessing the severity of soil compaction were evaluated, mostly under commercial conditions, at twelve sites with contrasting degrees of damage.  The soils at each site are Vertisols used to produce irrigated cotton.  The re...

THE PHYSIOLOGY OF COTTON WATER USE EFFICIENCY
By Michel Fok on Mar 10, 2017

Agronomy & physiology WCRC Agro-Physio-north-america WCRC1

Abstract                                                                         Back to Table of contents Availability of water causes major variation in cotton yield. Water use efficiency confers meanings of water conservation (i.e., savings of water and/or costs of water application) and transpiration efficiency (i.e., increasing productivity...

EFFECTS OF SOAKING ON THE GERMINATION CHARACTERISTICS AND MINERAL LEAKAGE OF COTTON (GOSSYPIUM HIRSUTUM L.) SEED
By Michel Fok on Mar 10, 2017

Agronomy & physiology WCRC Agro-phyisio-Med-MiddleEast WCRC1

Abstract                                                                         Back to Table of contents Cotton seed (Gossypium hirsutum  L.) was tested to identify germination, seedling characteristics and growth as well as mineral leakage caused by soaking the seeds for different periods. Four cotton cultivars (BL. 644, Ç. 1518, DP. 299 and...

THE USE OF COTTON STALKS AND COTTON GINNING TRASH AS FEEDSTOCKS FOR ETHANOL FUEL PRODUCTION
By Michel Fok on Mar 10, 2017

Economics and policy Agronomy & physiology WCRC Agro-Physio-north-america Eco&Policy-NorthAmerica WCRC1

Abstract                                                                         Back to Table of contents Cotton stalks and cotton ginning trash both present management problems for growers and processors within the cotton industry.  One option, now being considered, is to use these materials to produce ethanol fuel.  One of the biggest influen...

RECOVERY OF COTTON (GOSSYPIUM HIRSUTUM) FROM INTERCROPPING SUPPRESSION BY BEANS (PHASEOLUS VULGARIS)
By Michel Fok on Mar 10, 2017

Agronomy & physiology WCRC Agro-physio-East-Austral-Africa WCRC1

Abstract                                                                         Back to Table of contents  The performance of cotton (cu. SATU-85) grown in five intercropping systems:  cotton and beans (cu. K-20) planted simultaneously (C1L1); cotton planted two or four weeks prior to beans (C1L2 and C1L4); and beans planted two or four weeks p...

THE USE OF PLANT MONITORING TECHNIQUES AS AN AID IN DETERMINING MEPIQUAT CHLORIDE RATES IN RAIN-FED COTTON
By Michel Fok on Mar 10, 2017

Agronomy & physiology WCRC Agro-physio-global WCRC1

Abstract                                                                         Back to Table of contents Five Pix treatments were applied at seven locations across the Coastal Plain. The five treatments consisted of a check receiving no Pix, a low rate multiple approach receiving four applications of 292 ml ha-1 of Pix at 10-14 day intervals b...

YIELD POTENTIAL OF COTTON UNDER DRIP IRRIGATION IN SOUTH AFRICA
By Michel Fok on Mar 10, 2017

Agronomy & physiology WCRC Agro-physio-East-Austral-Africa WCRC1

Abstract                                                                         Back to Table of contents Regular droughts in southern Africa reduce the available water for irrigation of agricultural crops.  Cotton in South Africa is mainly irrigated by centre pivot or other sprinkler type system whose efficiency in water distribution is poor u...

USE OF GROWTH REGULATORS IN COTTON PRODUCTION
By Michel Fok on Mar 10, 2017

Agronomy & physiology WCRC Agro-physio-global WCRC1

Abstract                                                                         Back to Table of contents Considerable interest exists for the use of plant growth regulators (PGRs) in cotton production.  Plant growth regulators are organic compounds, other than nutrients, that affect physiological processes of plants when applied in small conce...

PREDICTING YIELD RESPONSES OF COTTON TO GROWTH REGULATORS
By Michel Fok on Mar 10, 2017

Uncategorized Agronomy & physiology WCRC Agro-physio-australia WCRC1

Abstract                                                                         Back to Table of contents There have been some significant recent improvements in the understanding of vegetative growth management in cotton using growth regulators. Successful advisory programs have been implemented for cotton growers to monitor their crops and appl...

NEAR REAL-TIME IRRIGATION SCHEDULING ON COTTON USING AZSCHED SOFTWARE
By Michel Fok on Mar 10, 2017

Agronomy & physiology WCRC Agro-Physio-north-america WCRC1

Abstract                                                                         Back to Table of contents AZSCHED irrigation scheduling software, an interactive computer program using near real-time weather data and growing-degree-day based crop coefficients, was developed and tested in Arizona between 1988 and 1991 (Scherer et al., 1990a, 1990...

NITROGEN, PHOSPHORUS AND POTASSIUM AVAILABILITY IN THE SOIL, PHYSIOLOGY OF THE ASSIMILATION AND USE OF THESE NUTRIENTS BY THE PLANT
By Michel Fok on Mar 10, 2017

Agronomy & physiology WCRC Agro-physio-West-Central-Africa WCRC1

Abstract                                                                         Back to Table of contents Cotton has an indeterminant growth habit and an extreme sensitivity to adverse environmental conditions which can result in excess fruit abscission. Because of these characteristics, during most of the time this plant has to assume simultan...

AN AUTOMATIC STEERING SYSTEM FOR THE INTER-ROW CROP CULTIVATION OF COTTON
By Michel Fok on Mar 10, 2017

Agronomy & physiology WCRC Agro-physio-australia WCRC1

Abstract                                                                         Back to Table of contents A vision guidance system has been designed, built and commissioned which steers a tractor relative to the rows of a crop such as cotton.  It was required to be insensitive to additional visual "noise" from weeds, while tolerating the fading...

Contents of the WCRC1, in Brisbane, Australia (1994)
By Michel Fok on Mar 10, 2017

WCRC WCRC1

OPENING ADDRESSES Opening Address (The Honourable Bill Hayden AC Governor-General of the Commonwealth of Australia) Future Role of Cotton Research in Developing Countries (Barbosa, S.) AGRONOMY Plant monitoring and growth regulators Predicting Yield Responses of Cotton to Growth Regulators (Constable, G.A.) Use of Growth Regulators in Cott...

MANAGING SOIL MECHANICAL STRESSES FOR COTTON PRODUCTION
By Michel Fok on Mar 10, 2017

Agronomy & physiology WCRC Agro-physio-Asia WCRC1

Abstract                                                                         Back to Table of contents Soil mechanical stresses are detrimental to root and shoot growth in cotton when threshold values are exceeded.  Soil surface, mechanical stresses are manifested either as crusts or seals formed when rain or irrigation is followed by rapid...

Applications Invited for ICAC Researcher of the Year 2017
By M. Rafiq Chaudhry on Feb 8, 2017

Uncategorized

The International Cotton Advisory Committee (ICAC) is inviting applications for the ICAC Researcher of the Year 2017. Applications/nominations will be accepted from February 1 to March 31, 2017. The winner will be announced on May 1. Award Panel will judge nominees on the evidence of: awards/recognition (national and international); publications (b...