Influence of some natural soil conditioners under different levels of mineral nitrogen on sandy soil properties and maize productivity [electronic resource]:
Language: English Summary language: Arabic Description: p. 261-274Other title:- تأثير بعض المحسنات الطبيعية تحت مستويات مختلفة من النيتروجين المعدني علي خواص التربة الرملية وإنتاجية الذرة [Added title page title]
- Menuofia journal of soil science, 2019 v. 4, (Dec) [electronic resource].
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Main | ART MJSS V4 Dec 4 (Browse shelf(Opens below)) | Available |
Includes references.
A field experiment was carried out on a sandy soil of the Experimental
Station of Agric. Rese. Center (ARC), lsmailia Governorate, Egypt to study the effects of
using some crop residues as a natural soil conditioners on some physical properties i.e.,
bulk density, hydraulic conductivity, field capacity, wilting point and available water and
chemical properties (pH, EC and the content of O.M) and available N, P and K as well as
the productivity of (Zea mays L. c. v., Triple hybrid 324). The experiment was designed in a
randomized complete block design with three replicates. The three sources of soil
conditioners were: sawdust (S), rice straw (RS) and maize stalks (MS) at rate of 2.5 g O.C!
kg soil. Also of two rates of nitrogen mineral 5 % and 10% over the N
Recommended dose (300 kg/fed which added as ammonium sulfate (21% N). Obtained
results can be summarized as follows:
In compare with non conditioned soil (control), the studied physical properties of the
sandy soil were improved significantly with the application of all conditioners (S, RS and
MS) as a resulted in a decreases in both bulk density and hydraulic conductivity where
caused an increase of field capacity, wilting point and available water content.
The values of pH and EC were decreased with addition of organic soil conditioners and
also, the content of available N, P and K increased significantly with the use of organic
conditioners (S, RS and MS) especially, with high rate of mineral nitrogen N (10%) over
recommended dose. Moreover sawdust treatment had more effect on the soil content of
available N, P and K compared with the other soil conditioners.
Plant height of maize and its straw and grains yields increased significantly with the
application of soil conditioners (S, RS and MS) with N fertilizer at rates of 5% and 10%
compared with the control treatments.
Summary in Arabic.
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