AVAILABLE WAYS TO OPTIMIZE SOIL PROPERTIES IN APPLE ORCHARDS

2020 ◽  
Vol 16 (2) ◽  
pp. 41-63
Author(s):  
V.L. Zakharov ◽  
◽  
G.N. Pugachev ◽  
2020 ◽  
Vol 18 (4) ◽  
pp. 72-77
Author(s):  
V.L. Zakharov ◽  

The article is devoted to the study of changes in soil properties in Apple orchards. During the operation of Apple orchards, 2 zones are formed in the soil – trunk strips and row spacing. In the row spacing in the 10-40 cm layer, due to the high density of the soil, Apple roots do not consume nutrients, and in the same layer in the trunk strips, acidification and removal of phosphorus, potassium, humus and bases occur. The nitrification capacity of the soil in the trunk strips of the old Apple orchard is at the level of virgin areas and increases as the soil decompresses.


2020 ◽  
Vol 723 ◽  
pp. 138041 ◽  
Author(s):  
Min Yang ◽  
Shaofei Wang ◽  
Xining Zhao ◽  
Xiaodong Gao ◽  
Shuai Liu

2016 ◽  
Vol 05 (02) ◽  
pp. 92-99
Author(s):  
Takamitsu Kai ◽  
Masaki Mukai ◽  
Kiwako S. Araki ◽  
Dinesh Adhikari ◽  
Motoki Kubo

Author(s):  
İbrahim ERDAL ◽  
Ali COŞKAN ◽  
Zeliha KÜÇÜKYUMUK ◽  
Figen ERASLAN

2021 ◽  
Vol 14 (19) ◽  
Author(s):  
Shabir Ahmed Bangroo ◽  
Javid Ahmad Sofi ◽  
Mohammad Iqbal Bhat ◽  
Shabir Ahmad Mir ◽  
Tasneem Mubarak ◽  
...  

2021 ◽  
Vol 54 (3) ◽  
Author(s):  
Syed Rehan Freed ◽  
Mehrunisa Memon ◽  
Saleem Maseeh Bhatti ◽  
Muhammad Ibrahim Keerio

2014 ◽  
Vol 11 (1) ◽  
pp. 15
Author(s):  
Set Foong Ng ◽  
Pei Eng Ch’ng ◽  
Yee Ming Chew ◽  
Kok Shien Ng

Soil properties are very crucial for civil engineers to differentiate one type of soil from another and to predict its mechanical behavior. However, it is not practical to measure soil properties at all the locations at a site. In this paper, an estimator is derived to estimate the unknown values for soil properties from locations where soil samples were not collected. The estimator is obtained by combining the concept of the ‘Inverse Distance Method’ into the technique of ‘Kriging’. The method of Lagrange Multipliers is applied in this paper. It is shown that the estimator derived in this paper is an unbiased estimator. The partiality of the estimator with respect to the true value is zero. Hence, the estimated value will be equal to the true value of the soil property. It is also shown that the variance between the estimator and the soil property is minimised. Hence, the distribution of this unbiased estimator with minimum variance spreads the least from the true value. With this characteristic of minimum variance unbiased estimator, a high accuracy estimation of soil property could be obtained.


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