A field trial has been carried out in order to study the use of Earthworm Manure (EWM) and NPK fertilizer improve quality Acid Sulphate Soil (ASS) as a sweet corn (Zea mays L) cultivation land North Sumatra. The experiment was Factorial Randomized Block Design. Factors studied were fertilizer. EWM treatment arranged 4 doses consisting of: Control (0 kg / plot), 0.4 plot; 0.8 1.2 EWM/plot. given...

Narrow-row soybean [Glycine max (L.) Merr.] production in corn [Zea mays L.]–soybean rotations results in various distances of soybean rows from previous corn rows, yet little is known about soybean responses to proximity to prior corn rows in no-till systems. The objective of this study was to evaluate the impacts of preceding corn rows on potassium (K) nutrition and yield of subsequent no-til...

Consider a (possibly infinite) exchangeable sequence X= {Xn : 1≤ n < N}, where N ∈ N ∪ {∞}, with values in a Borel space (A,A), and note Xn = (X1, . . . ,Xn). We say that X is Hoeffding decomposable if, for each n, every square integrable, centered and symmetric statistic based on Xn can be written as an orthogonal sum of n U statistics with degenerated and symmetric kernels of increasing order...

In partitioning-­‐-­‐-­‐a.k.a. clustering-­‐-­‐-­‐data, we associate each data point with one and only one of some collection of groups called clusters or partition blocks. Here, we formally establish an analogous problem, called feature allocation, for associating data points with arbitrary non-­‐negative integer numbers of groups, now called features or topics. Just as the exchangeable partit...

Two recently developed models of radio-cesium (RCs) transfer from soil to rice grains that were parameterized and ready-to-use for paddy fields in Fukushima reviewed establish model-based countermeasures food safety management Fukushima. A probability density function model the factor based on exchangeable potassium (K) was compared with a grain RCs concentration basis K. The relevance between ...

We introduce two new bootstraps for exchangeable random graphs. One, the “empirical graphon bootstrap”, is based purely on resampling, while other, “histogram a model-based “sieve” bootstrap. show that both of them accurately approximate sampling distributions motif densities, i.e., normalized counts number times fixed subgraphs appear in network. These densities characterize distribution (infi...

Phytoremediation is an efficient technique for the reclamation of salt-affected soils by growing plants. The present study aims to evaluate intercropping halophyte Atriplex nummularia Lindl. with naturally occurring species (Mimosa caesalpiniifolia Benth, Leucaena leucocephala (Lam.) de Wit and Azadirachta indica A. Juss.) adapted semiarid regions as a management capable enhancing phytoremediat...