Advances in the estimations and applications of critical nitrogen dilution curve and nitrogen nutrition index of major cereal crops. A review
Nitrogen (N) is one of the decisive elements for plant growth, crop biomass accumulation,
and yield formation of cereal crops. However, managing N in crop production and …
and yield formation of cereal crops. However, managing N in crop production and …
Plant nitrogen nutrition status in intercrops–a review of concepts and methods
Managing the nitrogen (N) supply in agroecosystems is a critical issue to ensure sufficient
food production while preserving the environment. Intercropping is known to be a …
food production while preserving the environment. Intercropping is known to be a …
Optimal leaf positions for SPAD meter measurement in rice
The Soil Plant Analysis Development (SPAD) chlorophyll meter is one of the most commonly
used diagnostic tools to measure crop nitrogen status. However, the measurement method …
used diagnostic tools to measure crop nitrogen status. However, the measurement method …
SPAD values and nitrogen nutrition index for the evaluation of rice nitrogen status
H Yang, J Yang, Y Lv, J He - Plant Production Science, 2014 - jstage.jst.go.jp
Plant-based diagnosis is one of the most important methods to determine nitrogen (N)
content of crops. Our objective was to establish the relationship between soil-plant analysis …
content of crops. Our objective was to establish the relationship between soil-plant analysis …
Indicators for diagnosing nitrogen status of rice based on chlorophyll meter readings
Various indices established on a portable SPAD-502 meter can serve as indicators of the
nitrogen status of a plant. We compared di-positional SPAD readings and indices with …
nitrogen status of a plant. We compared di-positional SPAD readings and indices with …
Interactions between compost, vermicompost and earthworms influence plant growth and yield: A one-year greenhouse experiment
TT Doan, PT Ngo, C Rumpel, B Van Nguyen… - Scientia …, 2013 - Elsevier
The aim of the present study was to examine the interactions between an endogeic
earthworm species, Metaphire posthuma, and purely mineral (control) or mineral plus …
earthworm species, Metaphire posthuma, and purely mineral (control) or mineral plus …
Use of a chlorophyll meter to assess nitrogen nutrition index during the growth cycle in winter wheat
C Ravier, M Quemada, MH Jeuffroy - Field Crops Research, 2017 - Elsevier
We investigated the feasibility of predicting crop nitrogen nutrition index (NNI) from
chlorophyll meter readings (CMRs) during the crop cycle, for the development of a …
chlorophyll meter readings (CMRs) during the crop cycle, for the development of a …
Leaf nitrogen, based on SPAD chlorophyll reading can determine agronomic parameters of winter wheat
F Mehrabi, AR Sepaskhah - International Journal of Plant Production, 2022 - Springer
Applying appropriate nitrogen (N) rates is a big challenge to farmers when they need to earn
maximum yield along with lowering leached N. It is hard to synchronize soil N availability …
maximum yield along with lowering leached N. It is hard to synchronize soil N availability …
Variations in crop variables within wheat canopies and responses of canopy spectral characteristics and derived vegetation indices to different vertical leaf layers and …
The fundamental basis for applying remote sensing methods to crop assessments is the
interrelationships between crop features and canopy spectral characteristics. Thus, a …
interrelationships between crop features and canopy spectral characteristics. Thus, a …
[PDF][PDF] Intelligent image analysis for retrieval of leaf chlorophyll content of rice from digital images of smartphone under natural light.
PJ Mohan, SD Gupta - Photosynthetica, 2019 - researchgate.net
The present study describes a new imaging method to acquire rice leaf images under field
conditions using a smartphone and modeling approaches to retrieve the leaf chlorophyll …
conditions using a smartphone and modeling approaches to retrieve the leaf chlorophyll …