Results 251 to 260 of about 2,499,201 (294)

DISTRIBUTION OF DRY MATTER AND AMOUNT OF MINERAL ELEMENTS IN IRRIGATED AND NON-IRRIGATED OLIVE TREES

Acta Horticulturae, 1999
Soil water deficit modifies physiological and metabolic activity in olive trees and !eads to a different distribution of dry matter and nutrients absorbed by the roots. The aim of this study was to evaluate the effects of water deficit on the distribution of dry matter between the ifferent olive tree organs and the amount of minerai eIements absorbed ...
CELANO, Giuseppe, B. DICHIO, G. MONTANARO, V. NUZZO, A. M. PALESE, C. XILOYANNIS   +5 more
openaire   +2 more sources

FORECASTING OF EXPECTED CHANGES IN THE AMOUNT OF DRIP IRRIGATION AND ECONOMIC EFFICIENCY OF IRRIGATION BY THE EXTROPOLATION METHOD

Bulletin of the Korkyt Ata Kyzylorda University, 2022
Мақалада Жамбыл облысының жұқа қабатты сұр топырақтарында жас қарқынды алма бағын тамшылатып суғару технологиясын жасауда алма ағаштарын әртүрлі тәсілдермен суғару кезінде алынған ғылыми-зерттеу жұмыстарының нәтижелері нұсқаларды салыстыру арқылы тиімділік көрсеткіштері келтірілген.
P.N. Yessengeldiyeva, K.К Musabekov, A.K. Maimakova   +2 more
openaire   +1 more source

Effect of small irrigation amounts on the yield of wheat

Agricultural Water Management, 1983
Abstract Yields of dryland crops are governed by the moisture in the soil profile at seeding and by rainfall during the growing season. Occasionally limited amounts of water may also be available for irrigation. Field experiments were conducted over a period of 4 years on loamy sand and 3 years on sandy loam to study the effects of pre-seeding, post ...
P.R. Gajri, S.S. Prihar
openaire   +1 more source

Scheduling irrigation for peanuts with variable amounts of available water

Agricultural Water Management, 1993
Abstract Field experiments were conducted on sandy loam soils for two summer seasons to formulate optimum water management practices for peanuts growing under variable water supplies. Scheduling irrigation to supply adequate water during the moisture sensitive periods of flowering and yield formation stages, yet allowing moderate stress at vegetative
C.Raghava Reddy, S.Rami Reddy
openaire   +1 more source

Influence of Large Amounts of Nitrogen on Nonirrigated and Irrigated Soybean

Crop Science, 2006
Nitrogen supplied by N2 fixation to soybean [Glycine max (L.) Merr.] may not be sufficient to maximize yield. Field studies were conducted in 2002, 2003, and 2004 on Sharkey clay soil (very‐fine, smectitic, thermic Chromic Epiaquert) at Stoneville, MS (33°26′ N lat).
Jeffery D. Ray, Larry G. Heatherly, Felix B. Fritschi   +2 more
openaire   +1 more source

Irrigation water amount and salinity dictate nitrogen requirement

Agricultural Water Management, 2015
Abstract Crop relative yield (RY) may be reduced by matric water potential or salinity stresses but also by nitrogen (N) deficiency. Elucidation of interactions among these factors through modeling using the ENVIRO-GRO program to compute RY and N leaching from the root zone for corn (Zea mays) was our objective.
Peter Vaughan, John Letey
openaire   +1 more source

METHODS, AMOUNTS, AND TIMING OF SPRINKLER IRRIGATION FOR WINTER WHEAT

Transactions of the ASAE, 1997
The yield response of winter wheat to LEPA double-ended-sock, LEPA bubble and overhead spray sprinkler methods was measured in the Southern High Plains with four irrigation amount and two irrigation timing treatments. Irrigation amount treatments ranged from zero to 100% of soil water replenishment in 33% increments.
null A. D. Schneider, null T. A. Howell
openaire   +1 more source

Frequency and amount of irrigation for maize in western Nigeria

Agricultural Water Management, 1979
Abstract This study was designed to investigate the frequency and amount of irrigation needed for maize in western Nigeria. The investigation indicated that about 330 mm of water either from irrigation or from well distributed rainfall is sufficient to produce a good crop of maize utilizing an irrigation frequency of 7 days.
openaire   +1 more source

A Method of Determining, on the Farm, the Amount of Water and the Frequency of Irrigation

1973
At a time when world water economy and intensive cropping are becoming a necessity, the determination of the amount of water and the frequency of irrigation should be rendered completely manageable by the farmer himself regardless of the size and the specific needs of his land and crops.
C. Lauter, L. Makoko, L. W. de Backer
openaire   +1 more source