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Techniques for Field Experiment With Rice

Contents

Page

Fore wordiv
FIELD TECHNIQUE
    Plot size, shape, and orientation 2
    Number of replications 4
    Experimental design 6
    Blocking 9
    Randomization 11
    Soil heterogeneity 13
    Border effect 16
    Missing hills 19
    Replanting dead hills 21
    Residual effect of fertilizer 22
    Residual effect of unplanted alleys 23
    Number of seedlings per hill 24
    Off-types 25
    Pest and disease damage 26
    Minor sources of variation 27
COLLECTION OF DATA
    Plot sampling 30
    Measuring grain yields 32
    Measuring plant height and tiller number 33
    Measuring yield components 35
    Measuring leaf area index 37
    Measuring stem borer incidence 39
    Sampling in broadcast rice 40
    Sampling for protein determination 41
    References 42
    Appendix Table 1. Random numbers
    Appendix Table 2. Correction factors for adjusting grain weight to 14% moisture
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