In cultivars with a cycle shorter than 120 days it is known that there is a relationship between the speed of canopy closure and the grain yield. Aiming at a better initial growing and consequently a quickest canopy closure ...

Increasing green leaf duration during grain filling in rice, using management practices to enhance plant nutrition and health, can increase grain yield. To test this hypothesis, two experiments were conducted in 2005/06. ...

Nowadays, modern technology allows engineers to create tools with more adequate properties depending on the application. Currently, a lot of components require dimensional and geometric precision with tolerances increasingly ...

En La Estaciôn Experimental "La Selva", ubicada en un clima frio moderado de Colombia (2.040 m.s. n.m. , 16° C de temperatura media y 1.600 mm de precipitación anual) se realizó un estudio con los progenitores y la ...

Wheat grain yield is often associated with grain number/m2. Spike fertility (SF), i.e. the quotient between grain number and spike chaff dry weight, is a major component of grain number/m2 determination. Several methodologies ...

Alternative management practices are needed to minimize the need for chemical fertilizer use in non-leguminous cropping systems. The use of biological agents which can fix atmospheric nitrogen and promote plant growth has ...

The market competitiveness of soybeans has increased, creating the need for a comprehensive management of all stages from procurement of inputs. Factors such as soil fertility and plant parasitic nematodes may also raise ...