نتایج جستجو برای: weed dry mater

تعداد نتایج: 116513  

Journal: :Journal of environmental biology 2006
Rajesh Kumar A S Soodan

Data collected during our on-going studies on the phytodiversity in the Upper Bari Doab Region of Punjab, show an inverse relationship between the level of phytodiversity and incidence of the congress grass-Parthenium hysterophorus. The open vegetation at Khiala Khurd (31 degrees -33' N-74 degrees .18' E), a site typical of the whole region, has a Shannon-Weaver index value of 2.544, which is f...

In order to determine the effect of weeds interference and nitrogen on the sugar beet growth and yield, a field study was performed in the 2010 growing season as a split plot design based on RCBD with three replications in Hana region (Semirom, Esfahan). Treatments were four levels of nitrogen from urea source as the main factor (0, 70, 150 and 210 kg ha-1) and weed interference at five levels ...

Journal: :Turkish journal of range and forage science 2022

Quality of silage corn is assessed over dry matter ratio, intake, crude protein, energy, and mineral contents. In this study, the effects different weed densities on quality were investigated in 2019 2020 years. Silage pH, Fleig score, NDF, ADF contents assumed as parameters. The experiment was established randomized block design. ratio did not present significant variations between years but s...

Journal: :بوم شناسی کشاورزی 0
عبدالرضا احمدی علیرضا دارایی مفرد

introduction in agronomy, natural outlook has been expressed in different forms which stable agriculture is an example. stable agriculture is ascribed to the authentic management of agricultural resources, which in addition to fulfilling the ever-changing needs of humans, maintains the health of environment and capacity of water and soil resources. application of herbicides, besides being costl...

A. Monsefi, A.R. Sharma N. Rang Zan

The effect of tillage, crop establishment and weed management was studied on theperformance of wheat grown after soybean at New Delhi, India during 2010-11 to 2011-12.Sixteen treatment combinations involved 2 tillage, viz. conventional tillage (CT) and zero tillage(ZT), two crop establishment practices, viz. raised-bed and flat-bed and four weed management,viz. isoproturon + hand weeding, mesos...

Objective: Citrus (Citrus reticulata) is one of the most important horticultural plant in Iran and weed management throuth ecological methods such as cover crop is a proper option in orchard management practices. Methods: The experiment was designed as a split plot on the base of complete randomized block design with four replications in Mazandaran Province, Sari, Voushka county from 2...

Objective: Citrus (Citrus reticulata) is one of the most important horticultural plant in Iran and weed management throuth ecological methods such as cover crop is a proper option in orchard management practices. Methods: The experiment was designed as a split plot on the base of complete randomized block design with four replications in Mazandaran Province, Sari, Voushka county from 2...

Allelopathy refers to the chemical inhibition or stimulation of one species by another which could influence on the growth or germination of other plant and used in control of weed in agricultural practices. In this sense in order to study the possibly allelopathic effects of lemon balm, bitter apple and lemon verbena medicinal plants on control of wild mustard weed, a laboratory experiment was...

G. Jilani H. Shamsi, K. B. Marwat Q. Mahmood S. Khalid Y. Hayat

Poaceous weeds are prolific and competitive in winter crops, but they are more insidious in wheat due to their similar morphology and growing requirements. Herbicides are effective and efficient tools of weed management, however, they are vulnerable to resistance, and herbicides with different modes of action might check the dominance of a particular weed flora. The current study was undertaken...

Journal: :تولید گیاهان زراعی 0
فاطمه ملک ملکی کارشناسی ارشد گروه زراعت، دانشگاه تهران ناصر مجنون حسینی دانشیار دانشکده علوم و مهندسی کشاورزی، دانشگاه تهران حسن علیزاده دانشیار دانشکده علوم و مهندسی کشاورزی، دانشگاه تهران

in this study, the effects of weed control treatments and plant density on lentil (lens culinaris) yield and yield components as well as weed control efficacy were investigated. the study was conducted according to a split-plot arrangement based on randomized completely block design in three replicates in karaj in 2007-2008. the weed control chemical treatments in four levels (trifluralin herbi...

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