벼 수확량 및 곡물 수분함량의 공간변이 해석

• 영문명: Spatial Variability Analysis of Rice Yield and Grain Moisture Contents
• 발행기관: 한국작물학회
• 저자명: 정지훈(Ji-Hoon Chung) 이호진(Ho-Jin Lee) 이승훈(Seung-Hun Lee) 이창환(Chang-Hwan Yi)
• 간행물 정보: 『한국작물학회지』제54권 제2호, 203~209쪽, 전체 7쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2009.06.30

영문 초록

Yield monitoring is one of a precision agri-culture technology that is used most widely. It is spatial variability analysis of yield information that should be attained with yield monitoring system development. This experiment was conducted to evaluate spatial variability of yield and grain moisture content in rice paddy field, and their relationships to rice productivity. It is necessary to minimize sampling interval for accurate yield map making or to control cutting width of rice combine. Considering small rice plots such as 0.2~0.4 ha, optimum size of sampl-ing plot was below 15 m more than 5 m in with and length. In variable rate treatment field, average yield was similar, but yield variation was reduced than conventional field. Gap of yield by another plot in same field was bigger than half of average yield than yield variation was signi-ficantly big. Therefore yield measuring flow sensor must be able to measure at least 300 kg/10a more than 1000 kg/10a. Variation of moisture content in same field was not big and spatial dependance did not appear greatly. But, variation between different field is appeared difference according to weather circumstance before harvesting. Change of spatial dependence of yield was not big, because of field variation of moisture content is not big.

목차

재료 및 방법

결과 및 고찰

적요

인용문헌

키워드

rice yield yield monitoring geostatistics grain moisture contents