نتایج جستجو برای: 2 sole sorghum weed infested
تعداد نتایج: 2565349 فیلتر نتایج به سال:
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...
Horizontal gene transfer has been postulated to occur between crops to co-occurring parasitic plants, but empirical evidence has been lacking. We present evidence that an HGT event moved a nuclear monocot gene into the genome of the eudicot parasite witchweed (Striga hermonthica), which infects many grass species in Africa. Analysis of expressed sequence tags revealed that the genome of S. herm...
A pot experiment was carried out at Zonal Agriculture Research Station, Kalaburagi (Karnataka), during kharif 2018 and 2019 to study the influence of weed management by allelopathy on nutrient status soil in pigeonpea (Cajanus cajan L.). The medium deep black with pH (8.13), EC (0.25 dS m-1), available nitrogen (242 kg ha-1), P2O5 (3...
sowing date is the most important factor in physiological and morphological characteristics with positive effects on plants. to evaluate the effect of sowing date and weed interference on yield and yield components of red beans cultivars a factorial split plot experiment in randomized complete block design with three replications was carried out in the research field of zanjan university. main ...
به منظور بررسی تعیین مدت زمانی که چغندر قند می تواند علفهای هرز را تحمل کند و تا چه زمانی علفهای هرز می تواند با گیاه زراعی رقابت کند و همچنین تعیین الگوی رشد چغندر قند در طول فصل رشد، آزمایشی در سال 1374 در مزرعه تحقیقات کشاورزی واقع در منطقه طرق مشهد در قالب بلوکهای کامل تصادفی با 12 تیمار در 4 تکرار اجرا شد. نتایج حاصل از این پژوهش نشان داد که دوره بدون علفهای هرز (weed free) در سطح احتمال 1...
A new aerial platform has risen recently for image acquisition, the Unmanned Aerial Vehicle (UAV). This article describes the technical specifications and configuration of a UAV used to capture remote images for early season site- specific weed management (ESSWM). Image spatial and spectral properties required for weed seedling discrimination were also evaluated. Two different sensors, a still ...
Beginning in 2012, research was conducted near Garden City and Tribune, KS, to determine the effect of a single tillage operation every 3 years on grain yields wheat-sorghum-fallow (WSF) rotation. Treatments included no-till, post wheat harvest mid-August, mid-June during fallow phase. This study revised with two additional more intensive treatments since 2019. The were 1) operations phase 2) o...
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