Optical sensors for variable rate nitrogen application in dairy pastures
نویسندگان
چکیده
منابع مشابه
Determining critical nitrogen application rates to reduce nitrate leaching in dairy pastures
Over the past decade, there has been a rapid increase in dairy farming in New Zealand. Nitrate leaching from intensive agricultural systems, e.g. dairy farms, is suspected to cause increased nitrate concentrations in ground and surface waters. The objective of this research programme was to determine nitrate leaching losses on dairy pasture systems as affected by the application of dairy shed e...
متن کاملImproving Nitrogen Use Efficiency in Cereal Grain Production with Optical Sensing and Variable Rate Application
and 10% in corn (Hilton et al., 1994). Fertilizer N losses due to surface runoff range between 1 and 13% In 2001, N fertilizer prices nearly doubled as a result of increased (Blevins et al., 1996; Chichester and Richardson, 1992). natural gas prices. This was further troubling when considering that the world N use efficiency (NUE) in cereal grain production averages Urea fertilizers applied to ...
متن کاملA Full-Fuzzy Rate Controller for Variable Bit Rate Video
In this paper, we propose a new full-fuzzy video ratecontrol algorithm (RCA) for variable bit rate (VBR) videoapplications. The proposed RCA provides high qualitycompressed video with a low degree computational complexity.By controlling the quantization parameter (QP) on a picturebasis, it produces VBR video bit streams. The proposed RCAhas been implemented on the JM H.264/AVC video codec andth...
متن کاملExpected Economic Potential of SubstitutingLegumes for Nitrogen in Bermudagrass Pastures
Grazing warm-season grass pastures with stocker cattle (Bos taurus) is an important economic activity in the southern Great Plains, and substantial increases in the price of N fertilizer have negatively affected profi tability of forage producers. The goal of the study was to determine if bermudagrass [Cynodon dactylon (L.) Pers.] pastures interseeded with either annual or perennial legumes are...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of New Zealand Grasslands
سال: 2017
ISSN: 2463-2880,2463-2872
DOI: 10.33584/jnzg.2017.79.533