نتایج جستجو برای: green fallow
تعداد نتایج: 142130 فیلتر نتایج به سال:
CT crop–fallow system in the central Great Plains (Shanahan et al., 1988; Halvorson, 1990; Peterson et al., Winter wheat (Triticum aestivum L.)–fallow (WF) using conven1993; Halvorson and Reule, 1994; Farahani et al., 1998). tional stubble mulch tillage (CT) is the predominant production practice in the central Great Plains and has resulted in high erosion potential Winter wheat yields in a WCF...
The “New Rotation” experiment was initiated in 1987 at Swift Current, Saskatchewan. The objectives were to evaluate, under conservation tillage management, the influence of crop and rotation type on crop productivity and grain quality, incidence of plant diseases and weed populations, a suite of soil and environmental parameters, economic performance and energy use efficiencies. The study provi...
This study was conducted to compare herbicides for use in herbicide-tolerant grain sorghum grass control fallow. Imazamox applied preemergence (PRE) generally the most effective herbicide regardless of weed species or evaluation date. Postemergence (POST) treatments did not green foxtail more than 78% late season. Imazamox, Assure II (quizalofop), and Accent (nicosulfuron) PRE early POST contro...
Wild deer have an important role in the epidemiology of bovine tuberculosis (bTB). The aims of this study were (1) to compare the pattern of lesions present in wild red (Cervus elaphus) and fallow (Dama dama) deer that were naturally infected with Mycobacterium bovis, and (2) to use this information to develop a sampling strategy for the isolation of M. bovis from the lymphoid tissues of the he...
Fallow forests, which have been generated by shifting cultivation, cover large parts of the highlands of Northern Thailand. This paper presents the case study of a village, in which a particularly sustainable form of shifting cultivation was practiced until the early 1990s. Secondary forests, which regenerate on the fallow swiddens of this village were found to be surprisingly rich in tree spec...
It was found that varieties Novosibirskaya 31 and Iren have an advantage in yield grain quality over Omskaya 36 Tyumenskaya 25 terms of the predecessors annual grasses green manure fallow. For 36, 25, Iren, background mineral nutrition is optimal for obtaining a 4 t/ha. A further increase leads to decrease quality. The exception variety, which retained level close 5 best sowing dates are first ...
Agriculture is the single biggest user of land and water in Morocco; however its performances are still low due to high rainfall variation and rates of soil productivity depletion. Increasing concerns about soil and environment quality degradation have raised the need to review existing tillage management systems and develop new systems for seed-bed preparation. Consequently, No-tillage is foun...
The intensification of dairying can have adverse impacts on the environment through diminished soil quality and greater loss of nutrients to water bodies. Poor soil quality can reduce the productivity and sustainability of pastoral farming systems. The effects of increased stocking rate (SR) (3, 4 and 5 cows/ha) and introducing a cut and carry system on soil, pasture and water quality were comp...
The Five different cropping patterns such as Fallow-Fallow-Fallow (F-F-F), Sugarcane-Sugarcane-T Aman (S-S-R), Vegetables-Fallow-T (V-F-R), Fallow-Fallow-T (F-F-R) and Fallow-Mung bean- T (F-M-R) from Jessore district were investigated for carbon sequestration in soil aggreagates. Highest value of bulk density (1.53 g cm-3) was found S-S-R lowest (1.27 F-M-R. under V-F-R exhibited highest poros...
The effects of intercycle cover crops on Rotylenchulus reniformis population densities in pineapple were evaluated in one greenhouse and two field experiments. In the greenhouse, Crotalaria juncea, Brassica napus, and Tagetes erecta were planted for 3 months and then incorporated. These treatments were compared to weedy fallow with or without 1,3-dichloropropene (1,3-D) in three soils (Makawao ...
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