Measuring method of field yield and uniformity of wheat

Abstract

The invention belongs to the technical field of statistics, and discloses a measuring method of field yield and uniformity of wheat. The measuring method comprises the steps of equidistantly fixing 5points, and tying bamboo poles at the points at the two ends and the middle; before the wheat is ripe, randomly taking one point from a tested field parcel, conducting paying off along one diagonal line, inserting the bamboo poles into the ground, and tensioning a rope to obtain five points; utilizing a sickle for cutting off all wheat ears in a circle, recording the number of the ears, separatelyloading obtained samples into a transfer box, and making labels; after sampling is completed at five sample points, conducting paying-off along the other diagonal line of the rectangle while keepingthe bamboo pole in the middle point still, and obtaining the other four points; taking the samples at the nine points back into a room, utilizing a small-sized threshing machine for threshing, and weighing grains after impurities are removed; utilizing a moisture measuring apparatus for measuring the moisture, and conversing the moisture into the safe moisture yield. According to the method, the yield (yield per mu or yield per hectare) and the number of ears per unit area are calculated according to the yield, the number of ears and the thousand kernel weight of each of the nine samples, andthe field uniformity is evaluated according to the variable coefficients of observation values of the nine sample points; the method can be widely applied to scientific research and production of thewheat.

Description

technical field [0001] The invention belongs to the technical field of statistics and relates to a method for measuring wheat field yield and uniformity. Background technique [0002] Field yield measurement is a basic work of wheat scientific research, production and statistics. How to efficiently and accurately reflect the field yield and the three elements of yield (number of ears per unit area, number of grains per ear, and thousand-grain weight) has always been a concern of wheat researchers. In recent years, with the promotion of high-yield wheat production, it is very important to measure the yield of wheat before it matures to predict the annual wheat production situation and evaluate the technical effect. At present, the commonly used method is generally to take the number of spikes in a certain area according to random numbers, then randomly select 20 spikes, count the number of grains per spike, and calculate according to the perennial thousand-grain weight of th...

AI Technical Summary

Problems solved by technology

[0003] First, the determination of the number of spikes per unit area is greatly affected by artificial sampling errors

Although the selection of sampling points is random in principle, due to the influence of the size of the plot and human factors in the operation, the selection of sampling points is random, and the sampling representativeness varies from person to person. The measured number of spikes per unit area is affected by human sampling errors larger

Second, the representativeness of the results of grain number per ear measurement is not enough

[0006] To solve the above problems, first of all, how to overcome the randomness of sampling

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