Planting density and fertilizer application rate are the key factors affecting crop yield, a series
of serious consequences were caused by unreasonable planting density and fertilizer …

China has had the highest fertilizer use rate in the world for years, but today a large number
of farmlands still use traditional manual fertilizer application methods, which rely entirely on …

Considering the non-linearity of grain yield, the prediction model of support vector machine
was proposed based on hybrid intelligent algorithm. To solve the problem that particle …

The frequent fluctuation of pork prices has seriously affected the sustainable development of
the pork industry. The accurate prediction of pork prices can not only help pork practitioners …

Teaching quality evaluation is one of the most commonly used educational evaluation
methods, which is used to evaluate teachers' teaching ability and teaching effect. In order to …

In view of the limitations of single forecast model, forecasted results of different models will
have some differences, in order to improve the forecast precision and the forecast results …

Body weight is one of the main growth indices in broiler production, which is a
comprehensive parameter in the broiler growth. The most common method to measure …

BP neural network (BPNN) is widely used due to its good generalization and robustness, but
the model has the defect that it cannot automatically optimize the input variables. In …

The optimal amount of fertilizer application which was needed by the trees and the factors
that influence the fertilization have an intricated nonlinear relationship. According to the …

The pH value in industrialized cultivation ponds is crucial to the survival of Litopenaeus
Vannamei. Grasping the trend of the pH value timely and accurately is the key for the high …