نتایج جستجو برای: optimal cropping pattern

تعداد نتایج: 713392  

Journal: :CoRR 2017
Maciej A. Czyzewski

We present a set of algorithms that can be used to locate and crop the chess-board/chesspieces from the picture, including every rectangular grid with any pattern. Our method is nonparametric, and thus does not require the prior knowledge from computer vision and machine learning, which is instead inferred from data. We illustrate the application of our method to a variety of examples, such as ...

2015
Li-Jun Zhang Shengdun Zhao

In order to reduce the cropping force and enhance the cropping cross-section quality, a new type of cropping machine is proposed in this paper. The basic structure and working principle of the cropping machine are introduced. Based on D'Alembert's principle, the vibration equations of the cropping machine along the Y direction, X direction and around X, Y, Z axis are built in detail and the mot...

In order to evaluate the effect of peppermint and faba bean intercropping patterns, a field experiment was carried out as a randomized complete blocks design (RCBD) with 9 treatments and 3 replications at the Faculty of Agriculture, University of Maragheh, Iran during 2015 growing season. Treatments included sole planting of peppermint and faba bean and intercropping patterns with ratios of 1:1...

2017
Nicolas Guilpart Patricio Grassini Victor O. Sadras Jagadish Timsina Kenneth G. Cassman

Yield gap analyses of individual crops have been used to estimate opportunities for increasing crop production at local to global scales, thus providing information crucial to food security. However, increases in crop production can also be achieved by improving cropping system yield through modification of spatial and temporal arrangement of individual crops. In this paper we define the croppi...

2016
Usman Anwar Randall K. Kolka John Tyndall Randall Kolka

Predicting the hydrologic consequences of biomass cropping systems requires an understanding of how different crops and management practices affect soil hydraulic properties across space and time. To inform such predictions, I investigated the impacts of five biomass cropping systems on the hydraulic properties of soils across a landscape gradient in wet, dry, and average rainfall years. I used...

2008
Tobias Tröger Henning Heiber Andreas Schmitt André Kaup

In this paper we propose a novel technique for imagebased synchronization of two mobile received TV sequences having different spatial resolutions, deviant image qualities, and possibly lost image blocks. The sequences are aligned spatially and temporally based on an affine transform. The optimal transformation parameters are determined numerically by the LevenbergMarquardt-Algorithm due to com...

2010
Rakesh Kumar Sharma Ranveer Singh

Cropping pattern in the Himalayan region of India has undergone a significant change in the recent past. Introduction of horticultural crops such as vegetables, fruits and flowers has led to more intensive agriculture. Such a change, resulting in higher incomes and improvements of the overall living conditions has, however, been accompanied with increased income risk. This emphasizes the need f...

2016
Ruiping Yang Yanling Mo Changming Liu Yongqi Wang Jianxiang Ma Yong Zhang Hao Li Xian Zhang

Continuous cropping of watermelon (Citrullus lanatus L.) can lead to reduced yield and quality. We aimed to determine the effects of cattle manure addition and rotation with green garlic to improve yield and reduce disease incidence in watermelon and to examine the effects on the biological and chemical characteristics of the soil. Field experiments were performed during 2012-2014 on land previ...

2016
Xingyue Li Edwin E. Lewis Qizhi Liu Heqin Li Chunqi Bai Yuzhu Wang

Continuous cropping changes soil physiochemical parameters, enzymes and microorganism communities, causing "replant problem" in strawberry cultivation. We hypothesized that soil nematode community would reflect the changes in soil conditions caused by long-term continuous cropping, in ways that are consistent and predictable. To test this hypothesis, we studied the soil nematode communities and...

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