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Riepma, P.

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Add  Weed control in rubber cultivation - a review
Authors: Riepma, P.
Date: 20081217 | 20081217 | | 1968 | | | | | | |
Subject: PRRIM
Type: Article
Identifier: vital1:31586
Description: -
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Add  Neburon, a selective herbicide for use in tropical legumes
Authors: Riepma, P.
Date: 20081008 | 20081008 | | 1965 | | | | | | |
Subject: PRRIM
Type: Article
Identifier: vital1:31752
Description: The effect of pre- and post-emergence applications of neburon on the growth of Pueraria phaseoloides and Centrosema pubescens has been tested. Pueraria phaseoloides was adversely affected by both appl… More
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Add  Preliminary observations on the breakdown of 3-amino-1,2,4-triazole in soil
Authors: Riepma, P.
Date: 20081008 | 20081008 | | 1962 | | | | | | |
Subject: PRRIM
Type: Article
Identifier: vital1:31939
Description: The breakdown of amitrole has been studied on different soil types and at two temperatures. It is shown by use of soil sterilization and of microbiological toxicants, that amitrole is broken down micr… More
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Add  The effect of disodium methylarsonate, dalapon, amitrole-T and paraquat on axonopus compressus, ottochloa nodosa and paspalum conjugatum
Authors: Riepma, P.
Date: 20081008 | 20081008 | | 1965 | | | | | | |
Subject: PRRIM
Type: Article
Identifier: vital1:31680
Description: The doses required to give 90% control of three weed species have been estimated at different intervals after spraying for four herbicides: amitrole-T, dalaponsodium, disodium methylarsonate (DMA) and… More
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Add  The effect of herbicides on the relation between cover index and yield index
Authors: Riepma, P.
Date: 20081008 | 20081008 | | 1965 | | | | | | |
Subject: PRRIM
Type: Article
Identifier: vital1:31659
Description: The effect of herbicide application on the relation between first and total number of contacts using the point quadrat method was studied. It was found that none of the herbicides testd-paraquat, dala… More
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Add  Supplement to the papers: "The effect of Disodium Methylarsonate, Dalapon, Amitrole and Paraquat when sprayed on Axonopus Compressus, Ottochloa Nodosa and Paspalum Conjugatum" and "the effect of herbicides on the relation between + cover index and yiel
Authors: Riepma, P.
Date: 20050714 | 20050901 | | 1965 |
Subject: Confidential Report
Type: Report
Identifier: vital1:58648
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Add  The point quadrat method and the intraspecific and interspecific competition of pueraria phaseoloides and centrosema pubescens
Authors: Riepma, P.
Date: 20050714 | 20050830 | | 1965 |
Subject: Confidential Report
Type: Report
Identifier: vital1:56704
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Add  Comparison of pre-emergence herbicides in planting strips of Hevea brasiliensis in 1964-1965
Authors: Riepma, P.
Date: 20050713 | 20050901 | | 1965 |
Subject: Confidential Report
Type: Report
Identifier: vital1:57006
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Add  Data pertaining to the paper: Neburon, a selective herbicide for use in tropical legumes
Authors: Riepma, P.
Date: 20050713 | 20051121 | | 1964 |
Subject: Confidential Report
Type: Report
Identifier: vital1:58995
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Add  Reaction of Pueraria Phaseoloides and Centrosema Pubescens to Neburon
Authors: Riepma, P.
Date: 20050713 | 20050830 | | 1962 |
Subject: Confidential Report
Type: Report
Identifier: vital1:59368
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Add  The reaction of weeds to herbicides experiments 1961 − 1964
Authors: Riepma, P.
Date: 20050713 | 20051121 | | 1965 |
Subject: Confidential Report
Type: Report
Identifier: vital1:58140
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Add  The reaction of weeds to herbicides experiments in 1965
Authors: Riepma, P.
Date: 20050713 | 20050901 | | 1965 |
Subject: Confidential Report
Type: Report
Identifier: vital1:56573
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Add  A comparison between the effectiveness of some pre-emergence herbicides applied in planting strips of Hevea brasiliensis on a sandy soil.
Authors: Riepma, P.
Date: 20030923 | 20050204 | | 1962 | | | | | | |
Subject: PRRIM | Pre-emergence
Type: Article
Identifier: vital1:23768
Description: A report is given on trials comparing the effectiveness of a range of pre-emergence herbicides when applied to planting strips on a sandy soil where Paspalum conjugatum was the main weed. On average, … More
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Add  A comparison of the pre-emergence herbicides atratone, prometone, prometryne and simazine applied in planting strips of Hevea brasiliensis.
Authors: Riepma, P.
Date: 20030923 | 20050202 | | 1965 | | | | | | |
Subject: PRRIM | Pre-emergence
Type: Article
Identifier: vital1:23820
Description: Prometryne and atratone were found to be more effective than prometone. Prometryne was more effective than simazine. The advantage that prometryne and atratone gave over control increased with the deg… More
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Add  Herbicidal effect and plant succession when using paraquat and amitrole against paspalum conjugatum and melastoma malabathricum.
Authors: Riepma, P.
Date: 20030923 | 20050205 | | 1963 | | | | | | |
Subject: PRRIM | Post-emergence
Type: Article
Identifier: vital1:23839
Description: Paraquat has a short-lived effect on Paspalum conjugatum and Melastoma malabathricum. Regeneration of these species may be sufficiently rapid to prevent a major invasion of the treated area by other s… More
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