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Comparative experiments with field crops /
Comparative Experiments with Field Crops is a guide on how to organize comparative experiments about field crops. The book is divided into two parts. Part I deals with how to do and interpret field experiments; the planning of field experiments and special considerations to take into mind; the marki...
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
London :
Butterworths,
[1974]
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| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Front Cover; Comparative Experiments with Field Crops; Copyright Page; Table of Contents; Part I: How to Do and Interpret Field Experiments; Chapter One. FIELD EXPERIMENTS IN AGRICULTURAL RESEARCH; 1.1 DEFINITION OF A FIELD EXPERIMENT; 1.2 EXPERIMENTS AND SURVEYS; 1.3 VALIDITY OF EXPERIMENTS; 1.4 THE CHOOSING OF TREATMENTS; 1.5 SIMPLE OR COMPLEX EXPERIMENTS?; Chapter Two. PLANNING A FIELD EXPERIMENT; 2.1 CHOICE OF DESIGN; 2.2 HOW TO RANDOMISE; 2.3 LAYOUT; 2.4 ANALYSIS IN RELATION TO DESIGN; 2.5 FERTILITY TRENDS; 2.6 HEADLANDS, SURROUNDS, ETC.; 2.7 SIZE OF PLOT; 2.8 PATHS
- 2.9 WHAT IS THE AREA HARVESTED?2.10 PARTICULAR WAYS OF AVOIDING EDGE-EFFECTS; Chapter Three. SPECIAL CONSIDERATIONS IN PLANNING CERTAIN TYPES OF EXPERIMENT; 3.1 HOW MANY NIL'PLOTS?; 3.2 COMPARING SPRAY TREATMENTS; 3.3 COMPARING SOWING (OR PLANTING) DATES; 3.4 CULTIVATIONS; 3.5 TREATMENTS THAT AFFECT RIPENING; 3.6 COMPARING SOIL FUMIGANTS; 3.7 EXPERIMENTS ON IRRIGATED CROPS; 3.8 EXPERIMENTS ON TECHNIQUE; Chapter Four. MARKING OUT, SOWING, COUNTING, SCORING; 4.1 MARKING OUT; 4.2 SIGHTING-IN; 4.3 PARALLELOGRAM-SHAPED PLOTS; 4.4 PRACTICAL POINTS IN MARKING OUT; 4.5 SOWING, PLANTING, ETC.
- 4.6 CALIBRATION OF SEED-DRILLS, FERTILISER DISTRIBUTORS, ETC. 4.7 APPLICATION OF BASAL MANURES, SPRAYS, ETC.; 4.8 PLANT COUNTS, SCORES, ETC.; Chapter Five. HARVEST; 5.1 IMPORTANCE OF YIELDS; 5.2 WHAT AREA PER PLOT FOR YIELD?; 5.3 MARKING OUT THE AREA FOR HARVEST; 5.4 LABELLING THE PRODUCE; 5.5 WEIGHING THE PRODUCE; 5.6 TAKING SAMPLES FROM THE HARVESTED PRODUCE; 5.7 RECORDING THE WEIGHTS; 5.8 RECORDING THE ORDER OF HARVESTING PLOTS; Chapter Six. SAMPLING; 6.1 SAMPLING TO ESTIMATE DIFFERENCES CONTRASTED WITH SAMPLING FOR ABSOLUTE VALUES; 6.2 OBJECTS OF SAMPLING; 6.3 PRINCIPLES OF SAMPLING
- 6.4 SAMPLES FROM YIELD AREAS OR DISCARDS?6.5 ADJUSTMENT OF HARVESTED AREA TO ALLOW FOR SAMPLING OF THE CROP; 6.6 PARTIAL SAMPLING OF AN EXPERIMENT; Chapter Seven. LONG-TERM EXPERIMENTS; 7.1 STRENGTH AND WEAKNESS OF LONG-TERM EXPERIMENTS; 7.2 MONOCULTURE EXPERIMENTS; 7.3 ROTATION EXPERIMENTS; 7.4 CROP-SEQUENCE EXPERIMENTS; 7.5 PLANNING A LONG-TERM EXPERIMENT; 7.6 HUSBANDRY OF LONG-TERM EXPERIMENTS; 7.7 AGRICULTURAL JUDGMENT; 7.8 RESPONSIBILITY FOR A LONG-TERM EXPERIMENT; 7.9 RECORDING THE DESIGN AND TREATMENTS OF LONGTERM EXPERIMENTS (ESPECIALLY ROTATION EXPERIMENTS)
- Chapter Eight. INTERPRETATION AND PRESENTATION OF RESULTS8.1 ESTIMATION AND SIGNIFICANCE; 8.2 CORRELATION BETWEEN TESTS OF SIGNIFICANCE BASED ON THE SAME SET OF PLOTS; 8.3 TABLES; 8.4 CONFOUNDED EXPERIMENTS; 8.5 UNCONVENTIONAL COMPARISONS; 8.6 HOW MANY DECIMAL PLACES?; 8.7 WARE PERCENTAGES; 8.8 STANDARD ERRORS; 8.9 COUNTS, SCORES, CHEMICAL ANALYSES, ETC.; 8.10 USES OF CO VARIANCE; 8.11 BACKGROUND INFORMATION; 8.12 GROUPS OF EXPERIMENTS; Chapter Nine. CRITIQUE OF TECHNIQUE; 9.1 GENERAL REMARKS; 9.2 DOWNRIGHT MISTAKES IN APPLYING TREATMENTS; 9.3 RANDOM INACCURACIES OF TECHNIQUE