In order to realize the intelligent identification of maize leaf diseases for accurate prevention and control, this study proposed a disease detection method based on improved MobileNet V3-small, using UAV collect images establish dataset in complex context, explored effects data expansion migration learning model recognition accuracy, recall rate, F1-score instructive evaluative indexes, resul...

BACKGROUND Artificial selection results in phenotypic evolution. Maize (Zea mays L. ssp. mays) was domesticated from its wild progenitor teosinte (Zea mays subspecies parviglumis) through a single domestication event in southern Mexico between 6000 and 9000 years ago. This domestication event resulted in the original maize landrace varieties. The landraces provided the genetic material for mode...

The Northeast China (NEC) was the most important agriculture areas and known as the Golden-Maize-Belt. Based on observed crop data and crop model, we design four simulating experiments and separate relative impacts and contribution under climate change, planting date shift, and varieties change as well change of varieties and planting date. Without planting date and varieties change, maize yiel...

Conservation agriculture (CA) practices are being widely promoted in many areas in sub-Saharan Africa to recuperate degraded soils and improve ecosystem services. This study examined the effects of three tillage practices [conventional moldboard plowing (CT), hand hoeing (MT) and no-tillage (NT)], and three cropping systems (continuous maize, soybean-maize annual rotation, and soybean/maize int...

Intercropping, which grows at least two crop species on the same pieces of land at the same time, can increase grain yields greatly. Legume-grass intercrops are known to overyield because of legume nitrogen fixation. However, many agricultural soils are deficient in phosphorus. Here we show that a new mechanism of overyielding, in which phosphorus mobilized by one crop species increases the gro...

Zambian farmers have extensive experience with maize hybrids and input subsidies. Like other countries in Eastern and Southern Africa, the successful development and diffusion of improved maize seed in Zambia during the 1970s and 1980s was supported by strong government commitment to parastatal grain and seed marketing and subsidized provision of services to maize growers. When this system was ...

The maize field environment is complex. Weeds and have similar colors may overlap, lighting weather conditions vary. Thus, many methods for the automated differentiation of weeds achieve poor segmentation or cannot be used in real time. In this paper, a weed recognition model based on improved Swin-Unet proposed. first performs semantic seedlings uses resulting mask to identify weeds. U-Net act...