QUANTIFYING SPATIAL VARIABILITY OF SOIL AND LEAF NITROGEN, PHOSPHOROUS AND POTASSIUM OF BASAL STEM ROT INFECTED OIL PALMS USING GEOSPATIAL INFORMATION SYSTEM

被引：1

作者：

Tajudin, Nur Shuhada ^{[1
]}

Musa, Mohamed Hanafi ^{[2
]}

Abu Seman, Idris ^{[3
]}

Amri, Che Nurul Aini Che ^{[1
]}

机构：

[1] Int Islamic Univ Malaysia, Dept Plant Sci, Kulliyyah Sci, Kuantan 25200, Pahang, Malaysia

[2] Univ Putra Malaysia, Fac Agr, Dept Land Management, Serdang 43400, Selangor, Malaysia

[3] Malaysian Palm Oil Board, 6 Persiaran Inst, Kajang 43000, Selangor, Malaysia

来源：

JOURNAL OF OIL PALM RESEARCH | 2020年 / 32卷 / 03期

关键词：

oil palm; basal stem rot; nutrient; geostatistic; geospatial; DISEASE RESISTANCE; AGRICULTURE; NUTRIENTS;

D O I：

10.21894/jopr.2020.0047

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

Basal stem rot disease (BSR) is known to be responsible for yield losses in oil palm plantations in Southeast Asia. A balance nutrient in soil and leaf is known to improve the plant health and disease resistance. In order to observe how nitrogen (N), potassium (P) and phosphorus (K) content in soil and leaf affect the BSR occurrence, a field study was conducted in infected blocks of oil palms at two different ages. Nutrients variability (N, P and K) were obtained, analysed and mapped using classical statistics and geospatial method. Correlated to BSR disease, total N and available P in soil were found to be high in both blocks. However, exchangeable K exhibited low level. Total N and available P in soil of Blocks 1 and 2, and N and P in leaves of Block 1 showed a significant association with the disease (p<0.01). The generated variability map and significant correlations revealed that unbalanced nutrient content occurred in the study area. This would be one of the causes that lead to the disease outbreak.

引用

页码：427 / 438

页数：12