During the course of science education one of the recognizable and desirable changes from a novice to an expert is in their language (knowledge representation). One noticeable change is that of weeding out ambiguous expressions bringing in clarity and rigor. However, this happens not by weeding out the concept names but by choosing more and more accurate linking words (relation names). By focus...

Agricultural robots have the potential to reduce herbicide use in agriculture and horticulture through autonomous precision weeding. One of the main challenges is how to efficiently plan paths for a robot arm such that many individual weeds can be processed quickly. This paper considers an abstract weeding task among obstacles and proposes an efficient online path planning algorithm for an indu...

The field experiment was conducted at wetlands farms of Tamil Nadu Agricultural University during summer 2022 with an objective evaluating the non-chemical weed management practices in blackgram (vigna mungo). laid out randomized block design ten treatments replicated thrice. Treatments included leaf extracts sorghum, castor and papaya @ 30% concentration, citric acid 5% + garlic 0.2%, dust mul...

To assess the possible impact of transgenic poplar plantations on the ecosystem, we analyzed the frequency and distance of gene flow from a mature male transgenic Populus nigra carried Bacillus thuringiensis toxin gene (Bt-OE poplar) plantation, and the survival of Bt-OE poplar seeds as well. The resultant Bt-OE poplar seeds occurred at a frequency from ~0.15% at 0 m to ~0.02% at 500 m far away...

introduction: weed competition is one of the major factors which limit sugar beet production in the world. weed – crop interactions are based on competition for water, nutrients and light and allelopathic effects may also play a small role. in sugar beet weed interference, all these factors are important too, but the light is of prime importance. due to the fact that a lot of weeds can grow abo...

In this study, we have a research of the fuzzy control for food agricultural robotics of a degree. Weeding robots can replace humans weeding activities, since the control system with nonlinear, robustness and a series of complex time-varying characteristics of the traditional PID control of the food agricultural robot end of the operation control effect cannot achieve the desired results, there...

A 2-year research was conducted to evaluate the effects of bean cultivar, herbicide and planting date on a plot scale in Zanjan Province, Iran. Weeds across plots were identified as 26 species. Weed density often lower for fourth (25–30 June) than first (10–15 May) Imazethapyr, Trifluralin, hand-weeding control at seedling, flowering maturity stages growth. At seedling flowering, there greater ...

To assess the effects of inter-cropping corn and soybean under southwestern Japan’s climatic conditions, 5 different treatments were compared, namely: CW (mono-cropped - weeded); CTW (corn + cv. Tachinagaha CT unweeded); CSW Suzukaren CS unweeded). Parameters measured height, yield, nutrient composition numbers Japanese beetles (Popillia japonica). Plant height mono-cropped was significantly (P...