Now showing items 1-10 of 18
Guide to soil measurements for agronomic and physiological research in small grain cereals
This wheat special report is a guide that outlines the procedures used for measuring many factors in small grains research. The actual observations taken, however, will depend on the objectives of the work in question. To ...
Intercropping cereals with N-fixing legume species: a method for conserving soil resources in low-input systems
The natural resources of the developing world are becoming increasingly threatened as the agricultural sector intensifies. A major resource being lost is the topsoil. Low levels of soil organic matter and the incomplete ...
Cultivo intercalado de cereales con especies de leguminosas que fijan N: un metodo para conservar los recursos del suelo en sistemas de bajos insumos
La producción de cereales con pocos insumos y gran eficiencia contribuye a aliviar la pobreza, incrementa los ingresos agrícolas y favorece la conservación del medio ambiente (1os suelos y el agua). Este Informe Especial ...
Conservation agriculture toward sustainable and profitable farming
Global agriculture faces major challenges. In large areas, soil erosion and the loss of fertility progressively reduce crop yields and can lead to land being abandoned and turning to desert. Households, industries, and ...
Increasing wheat yields sustainability through agronomic means
This paper examines common factors that constrain wheat yields: insufficient nutrients (using nitrogen as an example); problems of late planting and poor crop establishment; suboptimal water management; lodging; and weeds. ...
The normalized difference vegetation index (NDVI) Greenseeker(TM) handheld sensor: toward the integrated evaluation of crop management part A: concepts and case studies
Reflectance is the ratio of energy that is reflected from an object to the energy incident on the object. Spectral reflectance of a crop differs considerably in the near infrared region (λ = 700-1300 nm) and in the visible ...
On-farm experimentation with intercrops: a summary of issues from a workshop held in Malawi
Most intercropping research has been conducted on experiment stations with the aim of proving or understanding the efficiency or advantage of intercropping systems, or of designing new systems on the basis of biological ...
Nitrogen use efficiency and optimization of nitrogen fertilization in conservation agriculture
The world population increases and diets change to include more meat. Since livestock mostly have a cerealbased diet, this means global cereal yields have to double by 2050 to meet the demands of the increasing population ...
Ensuring the use of sustainable crop management strategies by small wheat farmers in the 21st century
Virtually all current strategies to implement modern, sustainable crop management production practices involve conservation/zero tillage prior to seeding, some form of crop residue retention and management, fertilizer ...