Water shortage and nitrogen (N) deficiency are the key factors limiting agricultural production in arid and semi-arid regions, and increasing agricultural productivity under rain-fed conditions often requires N management strategies. A field experiment on winter wheat (Triticum aestivum L.) was begun in 2004 to investigate effects of long-term N fertilization in the traditional pattern used for...

In this study, eight transformed Solanum tuberosum L. plants, affected in their nitrate assimilatory pathway by the introduction of a tobacco nitrate reductase gene (Nia2), were cultivated in glasshouse conditions at INRA Ploudaniel (West Brittany, France). Two irrigation regimes were compared and plants were sampled at four stages of vegetation. Yield, tuber dry matter content, total nitrogen ...

Abstract Accumulation of high level nitrate (NO 3 ? ) in leaves is a serious issue for vegetable crops like lettuce ( Lactuca sativa L.). Therefore, this study aimed to limit NO by adjusting the balance between fertilization and irrigation program lettuce. In strip plot design with three replicates, plants were grown under four fertilizer treatments regimes. Three organic fertilizers (biochar, ...

Fertilizer efficiency directly affects the production of continuous cropping greenhouse cucumber. So analyzing the fertilizer efficiency is of great significance in providing decision-making support for fertilization of greenhouse cucumber. By establishing the DEA models of continuous cropping greenhouse cucumber and taking existing data samples as study objects, the problems of fertilizer effi...

Birth of babies through in vitro fertilization procedures has Tenewed interest by clinicians as well as laymen in the phenomenon of fertilizatien. In most medical text books, fertilization is treated very lightly giving students the impressien that fertilization is a simple mechanical penetration of a spermatozoon into an egg. This is far frorn the truth. Fertilization comprises ・a series of co...

Introduction The consequences of overfertilization on agricultural and native ecosystems are well-documented, but the impact reduced fertilization plant–microbe interactions is less understood. Here, we analysed different nitrogen (N) regimes over two subsequent growing seasons seed microbiome winter oilseed rape (Brassica napus L.). Materials Methods Seed microbial diversity, composition, abun...

In ectotherm species, environmental temperature plays a key role in development, growth, and survival. Thus, determining how affects fish populations is of utmost importance to accurately predict the risk climate change over fisheries aquaculture, critical warrant nutrition food security coming years. Here, potential effects abnormal thermal regimes (24, 28 32 °C; TR24, TR28, TR32, respectively...

A field study was performed to evaluate the effect of mineral (NPK) and organic-based fertilizers such as compost (C), manure (FYM) and meat and bone meal (MBM) on the appearance (dimensions and color) of spring wheat kernels and on the total content in grain of main its phytochemicals (polyphenols, carotenoids and tocochromanols) and phenolic acids composition. Total phenolic compounds were de...

The purpose of this study was to examine: 1) whether caffeine in the fertilization medium under mineral oil is essential for bovine in vitro fertilization by fully capacitated spermatozoa, 2) the minimum concentration of caffeine that shows an adverse effect on the motility of preincubated spermatozoa. Cumulus-oocyte complexes with heterogeneous-appearing ooplasm were matured in in vitro cultur...

Low nitrogen-use efficiency (NUE) is a serious issue for cotton production and environmental sustainability in arid climates. A pot study was conducted to evaluate the effect of K nutrition on NUE performance low- high-K-efficiency cultivars under two moisture regimes. Treatments included soil levels—i.e., normal irrigation, 100% available water content (AWC); reduced 50% AWC—three levels nitro...