Environmental Factors and Cultural Measures Affecting The by T. Breimer

Posted On February 25, 2017 at 11:19 pm by / Comments Off on Environmental Factors and Cultural Measures Affecting The by T. Breimer

By T. Breimer

The current research used to be performed within the interval 1977-1981 on the division of Soil technological know-how and Plant food of the rural collage Wageningen, Netherlands. This collage provided the key monetary sup­ port via a examine supply, with extra monetary aid rendered via the Dutch Nitrogen Fertilizer and Unilever learn, Netherlands. This aid is gratefully said. within the current shape this document is the author's doctoral dissertation submitted to the school of the Agricul­ tural college. the writer hereby needs to thank prof. dr. ir. A. van Diest for his criti­ cal studying and correction of the English textual content, and drjr. J. H. G. Slangen for his worthy advices in the course of the investigations and through the instruction of this record. The au thor additionally recognizes the precious aid bought from numerous Agricultural study Institutes and college go away­ ments which made amenities and manpower to be had to behavior the ex­ periments and to remodel the implications got into the current document. Contents Preface / v summary / 1 record of ab breviations / 2 advent / three 2 Literature / 6 2. 1 Nitrogen ameliorations in soil / 7 2. 2 Nitrate uptake / 7 Nitrate aid in vegetation / 7 2. three 2. four Nitrate contents in vegetation / eight 2. five Cultural measures / nine 2. five. 1 Nitrogen dressing / nine 2. five. 1. 1 Nitrogen quantity / nine 2. five . 1.

Show description

Read Online or Download Environmental Factors and Cultural Measures Affecting The Nitrate Content In Spinach PDF

Similar environmentalism books

The Big Picture: Reflections on Science, Humanity, and a Quickly Changing Planet

No matter if he's discussing tips on how to reconcile financial system with ecology, why a hotter international will bring about extra poison ivy, why Britney Spears will get extra hits on Google than international warming does, or why we'd have to commence consuming jellyfish for supper, David Suzuki issues the path we needs to take as a society if we are hoping to satisfy the environmental demanding situations we are facing in our still-young century.

Climate Change and Terrestrial Carbon Sequestration in Central Asia

This ebook brings jointly present wisdom of terrestrial C sequestration in significant Asia. the subjects taken care of contain: biophysical environments, water assets, sustainable agriculture, soil degradation, the consequences of irrigation schemes on secondary salinization, soil administration and its dating to carbon dynamics; the connection among wooded area administration and carbon dynamics, financial analyses of land use practices, very important methodological concerns coming up from using GIS, distant sensing, carbon budgeting and scaling, and a assessment of the data gaps in carbon and weather switch.

Bringing the Biosphere Home: Learning to Perceive Global Environmental Change

This e-book exhibits the best way to make international environmental difficulties extra tangible, so they develop into an essential component of daily wisdom. At its center is a straightforward assumption: that tips on how to learn how to understand the biosphere is to pay shut consciousness to our quick atmosphere.

Outlooks: Readings for Environmental Literacy

An anthology of appoximately forty contemporary environmental articles from present magazines and technology journals. each one article has a precis of rules awarded, and questions on the finish to assist readers specialize in the details of the dialogue. a very good resource of data for readers.

Additional info for Environmental Factors and Cultural Measures Affecting The Nitrate Content In Spinach

Sample text

N-dressing per ha: 150 kg N. N0 3-N:NH 4-N-ratios: 0:3, 1:2,2:1 and 3:0. Nitrapyrin: none and 45 ml N-serve 24E per kg N (= about 1%nitrapyrin). Time of application of N: all N applied immediately after sowing (D l ) on 26 April, 3 split applications (D 3) on 26 April, 10 and 24 May and 6 split applications (D6 ) as D3 and on 3,12 and 31 May. B. N-dressings per ha: 0 - 75 - 150 (as in A) - 225 kg N0 3-N, applied on 26 April. Soil sampling dates: 26 April, 2, 16, 23 and 31 May and 6 and 13 June, on fallow plots without nitrogen dressings.

1971] and tomato [Kirkby & Knight, 1977] the OH-ion excretion is relatively small. Kirkby [1974] therefore proposed a modification of the Ben Zioni-Lips model that is applicable to species having a cation: anion uptake ratio close to unity. In this model, after translocation to the shoot, nitrate-nitrogen is transformed into organic nitrogen, and carboxylates accumulate in the shoot. Translocation of carboxylates to the roots and subsequent decarboxylation in the root system are thought to be of minor importance in these species.

0 g per pot. 4 manifested the extent of NH4 -uptake and -assimilation. 5, resulting from the decomposition of cyandiamide into urea, DCD and NH 4 , ammonia-toxicity [Schenk & Wehrmann, 1979] is highly probable and accounts for the low yields. 7 The effects of N in manures on yield and chemical composition of spinach The nitrogen from the manures used in experiment 8 was only partly available for uptake by plants. 13 Band C. In these figures, one graph could be drawn for both the high and low amounts of pig-manure slurry (PMS) and one graph for the high and low amounts of farmyard manure (FYM).

Download PDF sample

Rated 4.31 of 5 – based on 10 votes