INFLUENCE OF NPK FERTILIZATION ON GRAIN YIELD AND SOME COMPONENTS OF DURUM WHEAT (Triticum durum Desf.)

被引：0

作者：

Stefanova-Dobreva, Stefka ^{[1
]}

Muhova, Angelina ^{[1
]}

机构：

[1] Field Crops Inst, 2 Georgi Dimitrov Blvd, Chirpan 6200, Bulgaria

来源：

SCIENTIFIC PAPERS-SERIES A-AGRONOMY | 2020年 / 63卷 / 02期

关键词：

grain yield; NPK fertilizing; triticum durum; yield components; NITROGEN; CULTIVARS; CADMIUM; SOILS;

D O I：

暂无

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

The aim of the study was to determine the influence of different levels of mineral fertilizing, individual and combined on grain yield and some structural elements of productivity. In the field experience for the period 2016-2018 the following mineral fertilization levels were used: N and P - 0, 40, 80, 120 and 160 kg/ha: K - 0 and 80 kg/ha. A maximum increase in the values of the studied parameters was established at the following fertilization rates: number of grains per spike at N160P160: grain weight at N80P160; length of spike at N160P80: spikelets number per spike at Alm: plant height at N-120. Highest grain yield was reported at N160P80. Correlation analysis showed a strong and proven connection between grain yield and the traits surveyed The strongest correlation connection was between the number of grain per spike and the grain weight (r = 0.789**).

引用

页码：214 / 220

页数：7

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