Results 31 to 40 of about 950,917 (198)

GROWING MEDIA FOR ORGANIC TOMATO PLANTLET PRODUCTION [PDF]

, 2001
The choice of growing media and the strategy of application of organic fertilizers is considered one of the largest challenges for production of organic tomato plantlets for transplanting.
Nielsen, Kai Lønne, Thorup-Kristensen, Kristian   +1 more
core   +1 more source

EFFECT OF DIFFERENT NITROGEN FERTILIZERS SOURCES ON ROOT NODULES FORMATION AND GROWTH OF Acacia salig NA LABILL SEEDLINGS IN SANDY SOIL. [PDF]

Journal of Plant Production, 2002
This study was conducted at the Horticulture nursery of Shark EI- Bohairate in Esmailia Governorate during two successive seasons of 199912000 and 2000-2001., Pots seedlings of Acacia saligna 3 months old were fertilized monthly at the first three ...
M. Shehata,
doaj   +1 more source

Transformations of nitrogen fertilizers in soil

, 1985
The effects of 15N-labelled urea, (NH4)2SO4 and KNO3 on immobilization, mineralization, nitrification and ammonium fixation were examined under aerobic conditions in an acid tropical soil (pH 4.0) and in a neutral temperate soil (pH 6.8). Urea, (NH4)2SO4
Jenkinson, D. S., Rodgers, G. A., Wickramasinghe, K. N.   +2 more
core   +1 more source

Effects of Substituting Organic Fertilizers for Chemical Nitrogen Fertilizers on Physical and Chemical Properties and Maize Yield of Anthropogenic-Alluvial Soil

Agronomy
To resolve issues in the traditional agricultural production of the Ningxia irrigated area, where the sole pursuit of yield through extensive application of chemical nitrogen fertilizers has resulted in a deteriorated soil structure, reduced quality of ...
Shengbo Wang, Lei Li, Shuting Tang, Haili Si, Haojun Xie, Zhiming Zhu, Lidong Ji, Rui Wang, Zongyuan Gao, Bo Tian   +9 more
doaj   +1 more source

Cultivation and Nitrogen Fertilization [PDF]

Journal of Industrial & Engineering Chemistry, 1922
n ...
Noyes, H. A., Martsolf, J. H., King, H. T.   +2 more
openaire   +1 more source

Tracking nitrogen losses in a greenhouse crop rotation experiment in North China using the EU-Rotate_N simulation model [PDF]

, 2010
Vegetable production in China is associated with high inputs of nitrogen, posing a risk of losses to the environment. Organic matter mineralisation is a considerable source of nitrogen (N) which is hard to quantify.
Chen, Q. (Qing), Nendel, Claas, Jiang, Chunguang, Guo, Ruiying, Rahn, C. (Clive)   +4 more
core   +1 more source

Consumption of Nitrogen Fertilizers in the EU—External Costs of Their Production by Country of Application

Agriculture
The production of nitrogen fertilizers results in multiple negative environmental impacts. A particularly important aspect is its energy consumption. Analyses covering the product’s life cycle indicate that the greatest environmental harm is generated at
Agnieszka Sobolewska, Marcin Bukowski
doaj   +1 more source

Fluctuations of nitrogen levels in soil profile under conditions of a long-term fertilization experiment

Plant, Soil and Environment, 2008
The present study is focused on the correlation between varied long-term fertilization and changes in soil nitrogen concentrations. It was found that all fertilization systems significantly increased the levels of total, mineral and organic nitrogen in ...
W. Sądej, K. Przekwas
doaj   +1 more source

Effects of nitrogen input on soil bacterial community structure and soil nitrogen cycling in the rhizosphere soil of Lycium barbarum L.

Frontiers in Microbiology, 2023
Lycium barbarum L., goji berry, is a precious traditional Chinese medicine and it is homology of medicine and food. Its growth is heavily dependent on nitrogen.
Yuekun Li, Nan Zou, Xiaojie Liang, Xuan Zhou, Shuhan Guo, Yajun Wang, Xiaoya Qin, Yehan Tian, Jin Lin   +8 more
doaj   +1 more source

The effect of nitrogen fertilizer application methods on the development of leaf surface of oat plants

Аграрная наука Евро-Северо-Востока, 2019
The article presents the results of field trials conducted on leached chernozem of forest-steppe of the Volga region in 2012-2014. Studied was the development of the leaf surface of filmy varieties (Horizon, Krechet, Eclipse) and naked varieties (Vyatsky,
D. A. Kuznetsov, G. N. Ibragimova, A. D. Kalinina   +2 more
doaj   +1 more source