{"title":"白沙瓦农业研究中心不同地点杂草密度和频率的测定。","authors":"L. Luqman","doi":"10.28941/pjwsr.v28i3.996","DOIUrl":null,"url":null,"abstract":"A survey was conducted in the month of January 2015, to record the weed density and frequency in different crops in Agriculture Research Farm. A total two farms randomly selected for the survey. The data were recorded on the density m-2and the frequency (%). Quadrate method was use for recording data. In the first field maximum value of density m-2 (93) were recorded for Cynodon dactylon while the minimum value of density m-2 (6) were recorded for the Convolvulus arvensis and Melilotus indica. Similarly the maximum value of frequency (80%) were recorded for the Cynodon dacrylon while the minimum value of frequency (20%) were recorded for the Convolvulus arvensis . In the second field the maximum value of density m-2(56) were recorded for the Euphorbia helioscopia while the minimum value of density m-2 (6) were recorded for the Silybum marianum. Similarly the maximum value of frequency (100%) were recorded for Euphorbia helioscopia while the minimum value of frequency (20%) were recorded for fumaria indica, Silybum marianum,Coronopus didymus and Sonchus olereaceus . It is concluded that the weed prevailing in an area should be identify and managed to harvest potential yields of various crops.","PeriodicalId":17469,"journal":{"name":"JOURNAL OF WEED SCIENCE RESEARCH","volume":"41 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"DETERMINATION OF WEED DENSITY AND FREQUENCY AT DIFFERENT SITES OF AGRICULTURE RESEARCH FORM, PESHAWAR.\",\"authors\":\"L. Luqman\",\"doi\":\"10.28941/pjwsr.v28i3.996\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A survey was conducted in the month of January 2015, to record the weed density and frequency in different crops in Agriculture Research Farm. A total two farms randomly selected for the survey. The data were recorded on the density m-2and the frequency (%). Quadrate method was use for recording data. In the first field maximum value of density m-2 (93) were recorded for Cynodon dactylon while the minimum value of density m-2 (6) were recorded for the Convolvulus arvensis and Melilotus indica. Similarly the maximum value of frequency (80%) were recorded for the Cynodon dacrylon while the minimum value of frequency (20%) were recorded for the Convolvulus arvensis . In the second field the maximum value of density m-2(56) were recorded for the Euphorbia helioscopia while the minimum value of density m-2 (6) were recorded for the Silybum marianum. Similarly the maximum value of frequency (100%) were recorded for Euphorbia helioscopia while the minimum value of frequency (20%) were recorded for fumaria indica, Silybum marianum,Coronopus didymus and Sonchus olereaceus . It is concluded that the weed prevailing in an area should be identify and managed to harvest potential yields of various crops.\",\"PeriodicalId\":17469,\"journal\":{\"name\":\"JOURNAL OF WEED SCIENCE RESEARCH\",\"volume\":\"41 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-09-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"JOURNAL OF WEED SCIENCE RESEARCH\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.28941/pjwsr.v28i3.996\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"JOURNAL OF WEED SCIENCE RESEARCH","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.28941/pjwsr.v28i3.996","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
DETERMINATION OF WEED DENSITY AND FREQUENCY AT DIFFERENT SITES OF AGRICULTURE RESEARCH FORM, PESHAWAR.
A survey was conducted in the month of January 2015, to record the weed density and frequency in different crops in Agriculture Research Farm. A total two farms randomly selected for the survey. The data were recorded on the density m-2and the frequency (%). Quadrate method was use for recording data. In the first field maximum value of density m-2 (93) were recorded for Cynodon dactylon while the minimum value of density m-2 (6) were recorded for the Convolvulus arvensis and Melilotus indica. Similarly the maximum value of frequency (80%) were recorded for the Cynodon dacrylon while the minimum value of frequency (20%) were recorded for the Convolvulus arvensis . In the second field the maximum value of density m-2(56) were recorded for the Euphorbia helioscopia while the minimum value of density m-2 (6) were recorded for the Silybum marianum. Similarly the maximum value of frequency (100%) were recorded for Euphorbia helioscopia while the minimum value of frequency (20%) were recorded for fumaria indica, Silybum marianum,Coronopus didymus and Sonchus olereaceus . It is concluded that the weed prevailing in an area should be identify and managed to harvest potential yields of various crops.
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