Influence of nitrogen fertilizers, previous crops and soil texture on spring wheat yield

Jermuss, A. . Research Centre "Skriveri"

Influence of nitrogen fertilizers, previous crops and soil texture on spring wheat yield

2001

Jermuss, A. (Latvia Univ. of Agriculture, Skriveri (Latvia). Research Centre "Skriveri")

In 1999-2000 the field trials with spring wheat 'Munk' on optimisation of a nitrogen fertilizers were established at the Skriveri Research Centre of the Latvia University of Agriculture. The field trials were conducted on two different kinds of Luvisol soil: loam and loamy sand. As the influence of the previous crops-grass, grain and potatoes on efficiency of different (0; 50; 100; 150; 200; 250 kg ha*[-1)) nitrogen fertilizers was investigated. Is stated, that as well as predecessor, and mechanical structure of soil considerably influence efficiency of use of ammonium saltpetre by spring wheat. Some relevant soil properties at the beginning of the experiment were: in loam pH (KCl) 6.3; available phosphorus (DL-method) 100 mg P2O5 kg*[-1), available potassium (DL-method) 135 mg K2O kg*[-1); and soil organic matter (Tyurin's method) 2.3% in sandy loam pH (KCL) - 5.7; available phosphorus - 142 mg P2O5 kg*[-1); available potassium - 92 mg K2) kg(-1); and soil organic matter - 2.2%. The data mathematical processing was done using the General Linear Model criterion Tukey of the program SPSS.

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Mots clés AGROVOC

abonos nitrogenados clima climat climate crop yield cultivos de primavera culture de printemps data processing fosforo latvia letonia lettonie loam soils mathematical models nitrogen fertilizers phosphore phosphorus potasio potassium procesamiento de datos recherche rendement des cultures rendimiento de cultivos research sandy soils soil texture soil types sol sableux sol sablolimoneux spring crops suelo arenoso suelo franco textura del suelo texture du sol tipos de suelos trigo type de sol wheats

Informations bibliographiques

Editeur

Latvia University of Agriculture

Pagination

p. 40-45

D'autres materias

Traitement des donnees; Modelos matematicos; Modele mathematique; Investigacion; Ble; Engrais azote

Langue

letton

Note

Summaries (En, Lv)

9 ill., 9 ref.

Titre traduit

Slapekla meslojuma, prieksaugu un augsnes granulometriska sastava ietekme uz vasaras kviesu razu

Type

Summary; Conference; Non-Conventional

Source

[Research for Rural Development. Proceedings of the International Scientific Conference, Jelgava, Latvia, 23-25 May, 2001], Latvia Univ. of Agriculture, Jelgava (Latvia).- Jelgava (Latvia): Latvia University of Agriculture, 2001. 268 p.

Conférence

Starptautiskas zinatniska konference: Zinatne lauku attistibai, Jelgava (Latvia), 23-25 May 2001

Sur AGRIS depuis: 2002-08-15

Format: AGRIS AP

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Cette notice bibliographique a été fournie par Fundamental Library of Latvia University of Life Sciences and Technologies

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