Results 71 to 80 of about 140,480 (206)

THE INTEGRATION OF AMF INOCULANTS, GREEN MANURE AND ORGANO-MINERAL FERTILIZATION, IN BANANA PLANTATIONS ON CALCIC HAPLIC PHAEOZEMS

open access: yesTropical and Subtropical Agroecosystems, 2020
Background. Banana plants require large amounts of nutrients but fertilizer price is restrictive for many farmers, so it is important to develop technologies that support the productivity of banana crops relying on local nutrient sources by enhancing ...
Jaime Enrique Simo   +3 more
doaj  

Foliar nutrient levels of native tree species from Central Amazonia. 2. Campina

open access: yes, 1985
Adult leaves of 14 woody species were sampled in the campina at km 62 of the road Manaus - Caracaraí. The lamina were classified as to their size and analysed for N, P, K, Ca, Mg and Na. Comparing the foliar levels of the bioelements to relevant data for
Klinge, H.
core  

REMOTE SENSING OF FOLIAR NITROGEN IN CULTIVATED GRASSLANDS OF HUMAN DOMINATED LANDSCAPES [PDF]

open access: yes, 2015
Foliar nitrogen (N) concentration of plant canopies plays a central role in a number of important ecosystem processes and continues to be an active subject in the field of remote sensing.
Pellissier, Paul Adam
core   +1 more source

Nutritional and Defensive Chemistry of Three North American Ash Species: Possible Roles in Host Performance and Preference by Emerald Ash Borer Adults [PDF]

open access: yes, 2018
Black ash (Fraxinus nigra), green ash (F. pennsylvanica), and white ash (F. americana) are the three most abundant ash species in the northeastern USA.
Chen, Yigen, Poland, Therese M
core   +3 more sources

Pre-Harvest Foliar Application of Mineral Nutrients to Retard Chlorophyll Degradation and Preserve Bio-Active Compounds in Broccoli

open access: yesAgronomy, 2019
Foliar application of micronutrients has become a common farm management practice to increase the overall yield of various crops. However, the effects of foliar fertilization on shelf life and postharvest quality of the crops are rather under-researched.
Mohamed M. El-Mogy   +3 more
doaj   +1 more source

Detection of multi-tomato leaf diseases (late blight, target and bacterial spots) in different stages by using a spectral-based sensor. [PDF]

open access: yes, 2018
Several diseases have threatened tomato production in Florida, resulting in large losses, especially in fresh markets. In this study, a high-resolution portable spectral sensor was used to investigate the feasibility of detecting multi-diseased tomato ...
de Castro, Ana Isabel   +4 more
core   +2 more sources

Advances in soil salinity diagnosis for mangrove swamp rice production in Guinea Bissau, West Africa

open access: yesScience of Remote Sensing
Rice is one of the most important crops in many West African countries and has a direct impact on food security. Mangrove swamp cultivation is the most productive rice system in this area but is highly vulnerable to changes in rainfall patterns due to ...
Gabriel Garbanzo   +5 more
doaj   +1 more source

Heirloom Winter Wheat Variety Trial [PDF]

open access: yes, 2017
In 2017, the University of Vermont Extension Northwest Crops and Soils Program evaluated 20 heirloom winter wheat varieties to determine which varieties thrive in organic production systems in northern Vermont.
Cummings, Erica   +5 more
core   +1 more source

Development of strategies to improve quality and safety and reduce cost of production in organic and ‘low input‘ crop production systems [PDF]

open access: yes, 2007
The overall aims of organic and low input crop production include the economically viable and environmentally sound production of high quality food and feed.
Cohen, Y.   +3 more
core  

Establishing a rapid and effective method for screening salt tolerance in soybean [PDF]

open access: yes, 2009
Chlorine (Cl) toxicity has been recognized as a constraint for soybean production. Although the use of a Cl-tolerant crop easily solves the problem, current screening methodologies for Cl tolerance are often ineffective because of inadequate means of ...
Chen, Pengyin, Tamura, Mioko
core   +2 more sources

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