in order to study the effect of foliar zinc spraying on photosynthetic pigments and yield of chickpea under water stress conditions, a factorial experiment carried out based on randomized completely block design (rcbd) with three replications in university of mohaghegh ardabili agricultural research station in 2012. the treatments consisted of three levels of irrigation (irrigated at planting, ...

This study was carried out to determine the effects of pre-harvest calcium applications on fruit quality and cracking in "0900 Ziraat” cherry variety. For this purpose, “Codiagro Agroplant” containing 35% CaO (Calcium oxide); by foliar spraying; It has been applied trees different such as dripping from soil leaf + spraying. In study, weight (g), width (mm), length height (suture) seed amount wa...

The continuous spraying was adopted by most of spraying pesticide systems, which can not accord to the extent and the characteristic change of targets to automatically regulate dose of drugs. This way not only resulted in waste of pesticides, but also caused pollution of environment. The designing studied the variable spraying pesticide system of real-time, which based sensory technology, at th...

McDonald, Philip M.; Fiddler, Gary O. 1997. Treatment duration and time since disturbance affect vegetation development in a young California red fir plantation. Res. Paper PSW-RP-233. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture; 14 p. The density and development of greenleaf manzanita, snowbrush, goldenbush (rabbitbrush), and graminoids were e...

A group of legumes generically known as brooms are among the most successful shrubs invading grasslands in South America and other regions. These species share a set of biological features that enhance their invasiveness, such as abundant and long-lasting seed banks, aggressive root systems and rapid growth, combined with their ability for re-sprouting after cutting or burning and for avoiding ...