|Table of Contents|

Optimized Combination Scheme and Water-Fertilizer Coupling Model on Watermelon in Sand Field(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年17期
Page:
8-11
Research Field:
Publishing date:

Info

Title:
Optimized Combination Scheme and Water-Fertilizer Coupling Model on Watermelon in Sand Field
Author(s):
GUO Song; LIU Sheng-feng; YU Rong; WANG Zhi-qiang; TIAN Mei; DONG Rui
Institute of Germplasm Resources,Ningxia Academy of Agricultural and Forestry Sciences,Yinchuan,Ningxia 750002
Keywords:
sand field; watermelon; water-fertilizer coupling; mathematical model; optimized scheme
PACS:
S 651
DOI:
-
Abstract:
To satisfy the need of sand watermelon industry in Ningxia,taking ‘Ningnongke No．1’watermelon as material,using three factors and five levels of quadratic regression general rotation design,under the conditions of the sand,the effect of different irrigation amount,different organic fertilizer amount,different oil scrap fertilizer amount and water-fertilizer coupling on the yield of sand watermelon were studied,and the main factors effect,single factor effect and interaction of them were analyzed.The results showed that effect of main factors on the yield were Irrigation amount X1(positive effect)＞Organic fertilizer X2(positive effect)＞Oil scrap fertilizer X3(positive effect);interaction between factors on the yield were:Irrigation amount×Organic fertilizer(positive effect)＞Irrigation amount×Oil scrap fertilizer(negative effect)＞Organic fertilizer×Oil scrap fertilizer(negative effect).Agronomic measures of yield greater than 2 000 kg/667m2 were irrigation amount 3.51～4.24 kg per plant everytime,organic fertilizer 339.2～425.2 kg/667m2,oil scrap fertilizer 21.0～25.7 g per plant everytime.

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Last Update: 2014-08-07