EFFECTS OF PERIODS OF WEED INTERFERENCE AND WEED CONTROL ON GINGER (Zingiber officinale Roscoe.)

By

Author

Presented To

Department of Agricultural Science

ABSTRACT
Two field experiments were conducted during the 1986 wet season at Samaru in the northern Guinea savanna ecological zone of Nigeria to study the effects of mulching, periods of weed interference and chemical weed control ginger (Zingiber officinale Roscoe). In the weed interference trial, the use of grass mulch resulted in lower weed infestation and vigorous growth of ginger compared with the unmulched plots. Mean dry rhizome yield in mulched plots was about 37% higher than that of the unmulched situation. Mulching also resulted in lower weed dry matter production compared with no mulching due to the effect of grass mulch which suppressed weed growth through smothering. It was also apparent in this trial that weed infestation for 4 weeks after planting (WAP) did not adversely affect crop growth due to initial slow growth of the crop. Maximum rhizome yield could be obtained even when the crop is allowed to be infested up to 12 WAP due to lack of crop injury which usually occurs during weed removal at early stages of growth. Probably the critical period of weed competition in the crop is between 12 and 16 WAP. It was apparent that all the herbicide treatments consistently controlled weeds effectively both before and after one supplementary weeding. Among the weed control treatments, mixtures of metolachlor with chlorbromuron and prometryne, each at 1.0 + 1.0 kg a.i/ha, terbutryne at 1.33 + 0.67 kg a.i./ha metribuzin at 1.0 to 0.25 kg a.i./ha, fluometuron and ametryne, each at 1.0 + 1.0 and 1.5 + 1.5 kg a.i./ha and with diuron at 1.0 + 0.4 and 1.5 + 0.8 kg a.i./ha, all followed by supplementary hoe-weeding at 13 weeks after planting, resulted in significantly higher rhizome yield and effective seasonlong weed reduction compared with the unweeded control . Except the mixtures of metolachlor with fluometuron, ametryne and diuron, high rates of the other herbicide mixtures did not differ significantly in rhizome yield from the unweeded check, thus indicating possible detrimental effect of increasing the rates of these mixtures for weed control in the crop. It was apparent that atrazine-containing mixture was not tolerated by this crop, since both rates resulted in poor crop vigour and low rhizome yield comparable to the unweeded control. In this trial, unchecked weed growth throughout the crop life cycle significantly depressed crop vigour, leaf, stem and shoot dry weight and number of leaves per plant. It also reduced rhizome yield by 50.3% and 63.0% compared with the appropriate best treatments in the weed interference and chemical weed control trials, respectively


PLEASE NOTE:

That this Material is a Complete Project, Well Written and Contains 1 to 5 Chapters.


Click the download Button Below to Download the complete work. OR Call/WhatsApp Admin on: 09019904113 for Inquiry. Thank You

  • FOR ENQUIRY
  • support@e-projecttopics.com
  • 09019904113

About E-Project Material Centre


E-Project Material Centre is a web service aimed at successfully assisting final year students with quality, well researched, reliable and ready made project work. Our materials are recent, complete (chapter 1 to Minimum of Chapter 5, with references) and well written.INSTANT ACCESS! INSTANT DOWNLOAD. Simply select your department, choose from our list of topics available and explore your data

Why Students Love to Use E-Project Material ?


Guaranteed Delivery Getting your project delivered on time is essential. You cannot afford to turn in your project past the deadline. That is why you must get your project online from a company that guarantees to meet your deadline. e-Project Topics Material Centre is happy to offer instant delivery of projects listed on our website. We can handle just about any deadline you send our way. Satisfaction Guaranteed We always do whatever is necessary to ensure every customer's satisfaction

Disclaimer


E-Project Topics Material Centre will only provide projects as a reference for your research. The projects ordered and produced should be used as a guide or framework for your own project. The contents of the projects should be able to help you in generating new ideas and thoughts for your own project. It is the aim of e-Project Topics Centre to only provide guidance by which the projects should be pursued. We are neither encouraging any form of plagiarism nor are we advocating the use of the projects produced herein for cheating.

Terms and Condition


Using our service is LEGAL and IS NOT prohibited by any university/college policies You are allowed to use the original model papers you will receive in the following ways:
  • As a source for additional understanding of the subject
  • As a source for ideas for you own research (if properly referenced)
  • For PROPER paraphrasing ( see your university definition of plagiarism and acceptable paraphrase) Direct citing ( if referenced properly)
Thank you so much for your respect to the authors copyright