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Articles

MODELING THE EFFECT OF SOME FACTORS ON THE BIOMASS AND NITROGEN CONTENT OF SPINACH

Article number

462_18

Pages

145 – 150

Language

Abstract

In a model experiment (under controlled conditions), a study was made of the effect of the following factors on the formation of biomass, total nitrogen and nitrates in spinach cv.
Matador, cultivated as a spring crop: soil, nitrogen source and nitrogen fertilizer rate.
Two soils with different physico-chemical properties, 5 nitrogen sources and 5 nitrogen fertilizer rates were tested.
The independent effect of these factors and that of their interaction were statistically established using multifactorial analysis of variance (ANOVA). The effect of the factors "soil", "fertilizer", "fertilization rate", as well as that of the interaction between the nitrogen source and the fertilization rate upon the biomass formation were demonstrated using F-criterion.
The rest of the interactions were not statistically significant.
Furthermore, the relation between the nitrogen applied and the spinach biomass was modeled by regression equations for the different soils and fertilizers.

Publication

I Balkan Symposium On Vegetables and Potatoes

Authors

V. Vancheva, I. Ivanova

Keywords

spinach, fertilization, modeling, ANOVA, regression equation

Full text

https://doi.org/10.17660/ActaHortic.1997.462.18

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K. Mihov

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Z. Zaprjanov | I. Ivanov | K. Mihov

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M. Kamburova

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V. Bjelic

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T. Tudzarov

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Zhivko P. Danailov | Liuben P. Russanov

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S. Milutinovic | Z. Djukic

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J. Zdravkovic | Z. Markovic

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K. Miliev

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K. Miliev | N. Alexiev

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J. Petrevska | G. Popsimonova

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N. Laiopoulou | D. Bozidarevic

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Z. Klokocar Šmit | D. Inðjic | R. Jakovljev | F. N-Dzi | P. Mitrovic

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114. THE INFLUENCE OF SOIL MULCHING ON SOIL COMPRESSION WITH PEPPER

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115. PATHOPHYSIOLOGICAL CHANGES IN PEPPER PLANTS INFECTED WITH TOBACCO MOSAIC VIRUS

D. Savic | M. Rakocevic | L. Stankovic

116. THE RESPONSE OF LOCAL BLACK PEPPER POPULATIONS – CAPSICUM ANNUUM L. VAR. CONICUM FROM DIFFERENT AREAS IN BULGARIA TO VERTICILLIUM DAHLIAE KLEB.

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119. THE EFFECT OF PLANT GROWTH REGULATOR ATONIC ON THE YIELD AND QUALITY OF THE REPRODUCED SEEDS OF SWEET PEPPER

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120. RESPONSE OF DIFFERENT EGGPLANT CULTIVARS TO VERTICILLIUM WILT (VERTICILLIUM DAHLIAE KLEB.)

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S. Ljiljana | N. Novica | M. Zivoslav

122. REPRODUCTION METHODS OF CUCUMBER ACCESSIONS FOR CONSERVATION AND EXCHANGE IN THE GENEBANK

S. Neykov

123. THE EFFECT OF THE HELIUM-NEON LASER IRRADIATION OF CUCUMBER SEEDS ON THE PHYSIOLOGICAL CHARACTERS OF PLANTS GROWN UNDER WATER STRESS CONDITIONS

D. Cholakov | N. Uzunov | R. Meranzova

124. THE INFLUENCE OF PRE-SOWING LASER AND GAMMA IRRADIATION UPON THE YIELD AND QUALITY OF CUCUMBER SEEDS

D. Cholakov | N. Uzunow | R. Meranzova

125. THE RESPONSE OF INTRODUCED AND LOCAL CUCUMBER CULTIVARS TO THE CAUSAL AGENT OF POWDERY MILDEW SPHAEROTHECA FULIGINEA

S. Masheva | M. Alexandrova | S. Neykov | D. Dobrev

126. THE INFLUENCE OF THE DISTANCE FROM THE NORTHERN AND SOUTHERN FOREST BELTS ON THE YIELD AND QUALITY OF TWO DRY BEAN CULTIVARS

Tony K. Tonev | M. Stoyanova

127. BIOLOGICAL REMOVAL OF N, P₂O₅ AND K₂O WITH VEGETABLE MARROW YIELD UNDER CONDITIONS OF MINERAL FERTILIZER APPLICATION

M. Doikova | H. Boteva | I. Belichki

128. OPPORTUNITIES FOR ENLARGING OF GERMPLASM IN SPRING PEAS

Miho I. Mihov | Atanas A. Mehanjiev | Milka V. Stojanova

129. INFLUENCE OF AFILA “AF AF” GENE ON HEIGHT PEAS PLANT (PISUM SATIVUM L.)

R. Ðorðevic | M. Zdravkovic | D. Corokalo

130. INFLUENCE OF COMBINE MOVING SPEED ON HARVEST QUALITY OF DIFFERENT CULTIVARS OF PEAS IN AGROECOLOGICAL CONDITIONS OF KOSMET (YUGOSLAVIA)

S. Barac | B. Jacinac | Z. Ilic | A. Ðikic | M. Biberdzic

131. POSSIBILITY OF NITROGEN FIXATION IN PISUM SATIVUM AND TRITICUM AESTIVUM

D. Micanovic | Z. Saric | V. Raicevic

132. NEW SNAP BEAN VARIETIES

D. Corokalo | Z. Miladinovic | M. Zdravkovic

133. APPLYING DIFFERENT STATISTICAL METHODS FOR EVALUATION OF SOME BEANS (PHASEOLUS VULGARIS L.) MUTATION LINES

D. Dimova | D. Svetleva

134. STUDY OF SOME QUANTITATIVE BREEDING CHARACTERS IN PHASEOLUS COLLECTION

Milka V. Stoyanova | Emil A. Penchev

135. INVESTIGATION OF SOME BIOLOGICAL CHARACTERISTICS OF WHITE BEANS (PHASEOLUS VULGARIS L.) IN DIFFERENT ECOLOGICAL CONDITIONS

S. Stamenkovic-Jovanovic

136. THE INFLUENCE OF THE SUSPENSION FERTILISER LACTOFOL ON THE SOIL AND EPIPHYTE MICROFLORA IN FRENCH BEAN GROWN UNDER PLASTIC GREENHOUSE CONDITIONS

K. Sapundjieva | J. Kuzmanova | N. Shaaban

137. NODULE FORMATION ABILITY OF COMMON BEAN (PHASEOLUS VULGARIS L.) CULTIVARS

Gencho M. Milev | D. D. Genchev

138. CLASSIFICATION OF CULTIVARS OF PHASEOLUS VULGARIS ACCORDING TO THEIR SDS-PAGE PROTEIN PATTERNS

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139. THE DEPENDENCE OF LEAF AREA SIZE AND DRY MATTER OF BEAN ON PLANT DENSITY

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140. EFFECT OF VIRUS DISEASES ON SOME MAJOR PRODUCTION CHARACTERISTICS OF BEAN CV. IMPROVED GRADIŠTANAC

M. Babovic | G. Delibašic | A. Bulajic | S. Milijca | S. Milutinovic

141. DRY BEAN HARVESTING

Dragny P. Georgiev

142. EFFECT OF GROWING METHOD AND LETTUCE FERTILIZATION ON CHANGES OF NITRATE CONTENT IN LEAF

R. Pavlovic | D.R. Stevanovic | M.M. Kresovic

143. INFLUENCE OF SUBSTRATES ON FRUCTIFICATION OF OYSTER MUSHROOM (PLEUROTUS OSTREATUS) STRAIN NS-16

D. Bugarski | G. Djuro | A. Takac | J. Dragan

144. ELIKSIR F₁ – THE NEW SWEET CORN HYBRID (ZEA MAYS VAR. SACHARATA STURT.)

R. Ðordevic | T. Sretenovic-Rajicic | V. Pešic | A. Ðokic

145. A BIOCHEMICAL CHARACTERIZATION OF SOME LOCAL GARDEN GREEN BEANS ACCESSIONS

M. Sabeva | L. Krusteva

146. IN VITRO REGENERATION AND PROPAGATION OF POTATO AND ITS GENETIC HOMOGENEITY DETERMINATION BY MEANS OF PROTEIN POLYMORPHISM OF TUBERS

D. Merja | A. Stasa

147. MODE OF POTATO PEELING AS A PARAMETER FOR SELECTOR

N.L. Ruzicic | S. Pavlekic | V. Bjelic | M. Gavrilavic

148. PHENOTYPE VALUES, VARIABILITY AND PRODUCTIVE PROPERTIES IN DUTCH POTATO VARIETIES UNDER DIFFERENT AGRO-ECOLOGICAL CONDITIONS

Z. Bugarcic | Z. Vasiljeic | S. Šušic | A. Ðokic

149. DISTRIBUTION OF POTATO VIRUSES IN YUGOSLAVIA

M. Gavran

150. EFFECT OF PLANTING DENSITY AND SIZE OF POTATO SEED-MINITUBERS ON THE SIZE OF THE PRODUCED POTATO SEED TUBERS.

D.N. Georgakis | D.I. Karafyllidis | N.I. Stavropoulos | E.X. Nianiou | I.A. Vezyroglou

151. EFFECT OF PLANTING DENSITY AND SIZE OF POTATO SEED-MINITUBERS ON THEIR YIELDING CAPACITY

D.I. Karafyllidis | D.N. Georgakis | N.I. Stavropoulos | E.X. Nianiou | I.A. Vezyroglou

152. CINEMATIC AND DYNAMIC CHARACTERISTICS AND PARAMETERS OF POTATO DIGGER WITH OSCILLATORY PLOUGHSHARE

P. R. Ruzicic

153. IN VITRO PROPAGATION OF POTATO (SOLANUM TUBEROSUM L.)

R. Djurdjina | M. Milinkovic | D. Miloševic

154. ALTERNARIA ALTERNATA (FRIES.) KEISSLE (SIN. A.TENUIS NESS., SIN. A. LONGIPENS (ELL. AND EV.) MEISON), POTATOES PARASITE IN YUGOSLAVIA

V. Cakarevic V | T. Boškovic

155. RELATION BETWEEN INITIAL AND FINAL POPULATION DENSITY OF GLOBODERA ROSTOCHIENSIS WELL. ON SUSCEPTIBLE AND RESISTANT POTATO CULTIVARS

H. Samaliev | R. Andreev | A. Samalieva

156. EXOBACILLIN – A POTENTIAL CONTROL AGENT FOR THE COLORADO POTATO BEETLE

J. Kuzmanova | K. Sapundjieva

157. INSECTICIDE SUSCEPTIBILITY OF THE COLORADO POTATO BEETLE IN THE VICINITY OF BELGRADE, YUGOSLAVIA

I. Peric | N. Miloševski | P. Kljajic

158. APPLICATION OF IMIDACLOPRID THROUGH THE LEAF AND POTATO TUBER IN THE CONTROL OF THE LEPTINOTARSA DECEMLINEATA SAY

I. Marko | R. Sreten | K. Natalija | E. Ljubisav | I. Sinisa

159. A STUDY OF APHIDS FLIGHT ACTIVITY (HOMOPTERA, APHIDIDAE) POTENTIAL VECTORS OF POTATO VIRUSES

D. Milocevic | O. Petrovic

160. SPECIFICITY OF B. THURINGIENSIS SUBSP. TENEBRIONIS EFFECT AND APPLICATION

I. Sivcev | A. Zabel | B. Manojlovic | M. Kostic

161. ORGANOGENESIS OF ALGORITHM IN POTATO

S. Jevtic | N. Micic | G. Djuric | R. Cerovic

162. MODEL OF ECOLOGICAL FUNCTIONS OF GROWTH AND DEVELOPMENT IN POTATO

S. Jevtic | N. Micic | G. Djuric | R. Cerovic