Method for predicting yield and quality of Italian Ryegrass based on plant height and tillering

Abstract

The present invention relates to a method for predicting the yield and quality of Italian Ryegrass based on plant height and tillering and belongs to the agricultural technology field. According to the method, a simple mathematical model is adopted to predict the quality of the Italian Ryegrass through the growth time, number of cutting times, plant height and tillering of the Italian Ryegrass which can be obtained easily with manual means under a cutting condition. The method includes the following steps that: a mathematical model equation is calculated; forage grass growth time is calculated and collected; plant growth data such as the number of cutting times are calculated and collected; the forage grass growth time, the number of cutting times and the like are substituted into the mathematical model equation, so that calculation can be performed, forage grass growth indexes required to be analyzed are substituted into an established binary regression model and a multiple regression model; and the nutrient quality of the Italian Ryegrass is accurately predicted through calculation, and the optimal harvest time of the Italian Ryegrass is determined. The method has the advantages of simplicity, high practicability, quickness, convenience, high accuracy, low cost and the like. The method is just slightly affected by the climate. The method is suitable for Italian Ryegrass which is grown continuously for many years, in the first year, data should be collected, and the sample model for a region is established, and in the second year, the model can be used for production and scientific research. With the method adopted, a lot of money and time can be saved for small- and medium-sized agricultural production units.

Description

technical field [0001] The invention relates to a method for predicting yield and quality of ryegrass multiflora according to plant height and tillering, and belongs to the field of agricultural technology. Background technique [0002] Multiflora ryegrass has good palatability, and all kinds of livestock like to eat it. Multiflora ryegrass is annual, annual or short-term perennial. Stems erect, with 4-5 nodes, slender to stout. The leaf sheath is loose, the ligule is up to 4 mm, the blade is flat, glabrous, slightly rough on the top. Spike-shaped raceme erect or curved, cob soft, internode glabrous, slightly rough above, spikelet containing florets, internode smooth and glabrous, glume lanceolate, hard texture, lemma oblong-shaped Needle-shaped, with 5 veins, apex membranous transparent, with thin awns about 5 (-15) mm long, or upper florets without awns, with ciliates on ridges. Caryopsis oblong, 3 times as long as wide; flowering and fruiting period July-August [000...

AI Technical Summary

Problems solved by technology

Ordinary agricultural operators can only determine the harvest time of forage grass through empirical estimation, and cannot timely adjust the harvest period of forage grass through scientific means, often wrongly judging the harvest time of forage grass, resulting in a large amount of economic losses