Results 21 to 30 of about 202,127,633 (309)

The Effect of Humic Acid on Productivity and Nitrogen Uptake in Kangkong (Ipomoea reptans Poir.)

open access: yesJurnal Ilmu Pertanian Indonesia, 2020
An uncertain climate and infertile soils are factors that cause fluctuations in crop yields. In addition, improper application of fertilizers causes kangkong plants to not absorb nutrients optimally. The application of humic acid as a biostimulant can be
Deris Trian Rahmandhias, Diah Rachmawati
doaj   +1 more source

Growth, productivity and viability of irrigation in cassava crop in the Alagoas Coastal Plateaus

open access: yesCiência Rural, 2021
: This research evaluated the effects of the irrigation on growth and productivity of irrigated cassava in the Coastal Plateaus of Alagoas. The planting was done in randomized blocks, with six treatments and four replications.
Ricardo Barros Silva   +15 more
doaj   +1 more source

Sensitivity of tropical woodland savannas to El Niño droughts [PDF]

open access: yesBiogeosciences
The 2015–2016 El Niño event led to one of the hottest and most intense droughts for many tropical forests, profoundly impacting forest productivity. However, we know little about how this event affected the Cerrado, the largest savanna in South America ...
S. Matias Reis   +19 more
doaj   +1 more source

Lettuce (Lactuca sativa) productivity influenced by microbial inocula under nitrogen-limited conditions in aquaponics.

open access: yesPLoS ONE, 2021
The demand for food will outpace productivity of conventional agriculture due to projected growth of the human population, concomitant with shrinkage of arable land, increasing scarcity of freshwater, and a rapidly changing climate.
Jessica A Day   +14 more
doaj   +1 more source

Simulating Dynamic Roots in the Energy Exascale Earth System Land Model

open access: yesJournal of Advances in Modeling Earth Systems, 2019
Roots are important contributors to plant development, functioning to provide nutrients and water for plant growth. However, roots and their functions are often simplified in Earth system models, which limit the feedback of root foraging strategy on ...
B. A. Drewniak
doaj   +1 more source

Potential use of treated wastewater from a cattle operation in the fertigation of organic carrots

open access: yesRevista Brasileira de Ciências Ambientais, 2022
The use of treated effluents rich in nutrients and organic matter has intensified in agricultural crops, contributing to the demand for water and fertilizers.
Marcos Filgueiras Jorge   +8 more
doaj   +1 more source

Role of root microbiota in plant productivity [PDF]

open access: yesJournal of Experimental Botany, 2015
The growing human population requires increasing amounts of food, but modern agriculture has limited possibilities for increasing yields. New crop varieties may be bred to have increased yields and be more resistant to environmental stress and pests. However, they still require fertilization to supplement essential nutrients that are normally limited ...
Tkacz, A, Poole, P
openaire   +2 more sources

The historical roots of India’s service-led development : a sectoral analysis of Anglo-Indian productivity differences, 1870–2000 [PDF]

open access: yes, 2010
India fell further behind the UK in terms of GDP per capita and overall labour productivity between the 1870s and the 1970s, but has been catching-up since. This paper offers a sectoral analysis of these trends.
Broadberry, Stephen   +2 more
core   +1 more source

Agro-economic profitability of sweet potato cultivars as a function of the harvest age and times of cultivation in the semi-arid

open access: yesBioscience Journal, 2019
The objective of this work was to evaluate the profitability of sweet potato cultivars, harvested at different ages and cultivated in different periods (rainy and dry) in the municipality of Mossoró, semi-arid region of Rio Grande do Norte.
José Ricardo Tavares de Albuquerque   +7 more
doaj   +3 more sources

Stress-Induced Intensification of Deoxyshikonin Production in Rindera graeca Hairy Root Cultures with Ester-Based Scaffolds

open access: yesPlants, 2022
In vitro plant cell and tissue culture systems allow for controlling a wide range of culture environmental factors selectively influencing biomass growth and the yield of secondary metabolites. Among the most efficient methods, complex supplementation of
Kamil Wierzchowski   +7 more
doaj   +1 more source

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