IMPACT OF SOME ALTERNATIVE FERTILIZERS SUCH AS ANHYDROUS AMMONIA, HUMIC ACID, ROCK PHOSPHATE AND FELDSPAR ON GROWTH, YIELD AND ITS COMPONENTS AND NUTRIENT UPTAKE OF WHEAT AS WELL AS NUTRIENT AVAILABILITY

Ismail,, S.A.; Abd El-Hafeez, A.M.; Galal, O.A.; Awadalla, H.A

doi:10.21608/fjard.2014.193673

IMPACT OF SOME ALTERNATIVE FERTILIZERS SUCH AS ANHYDROUS AMMONIA, HUMIC ACID, ROCK PHOSPHATE AND FELDSPAR ON GROWTH, YIELD AND ITS COMPONENTS AND NUTRIENT UPTAKE OF WHEAT AS WELL AS NUTRIENT AVAILABILITY

Document Type : Research articles.

Authors

Soil, Water and Environment, Res. Inst., A.R.C.

10.21608/fjard.2014.193673

Abstract

The effect of some alternative fertilizers, namely anhydrous
ammonia in comparing with urea, humic acid, rock phosphate and
feldspar on growth, yield and its components and nutrient uptake and
its availability in soil after harvest for wheat plant (cv Beni Swif 1)
were evaluated in a field experiment. The experiment was conducted at
Sids Agricultural Research Station (ARC) Beni Swif Governorate
2010/2011 and 2011/2012 seasons in split plot design. Nitrogen
sources, i.e. anhydrous ammonia or urea at rate of 75 kg N/fed were
located in the main plots. While, natural fertilizer treatments (without,
humic acid, rock phosphate, and feldspar and their combinations at
rates of 10, 300 and 400 kg/fed respectively) were added in the sub
plots.
The results show that anhydrous ammonia significantly produced
tallest and heaviest plants, more numbers of both spikes/m2 and
grains/spike as well as higher 1000 grain weight and grain and straw
yields when compared with urea. Also, plants incorporated with
anhydrous ammonia absorbed more N, P and K than that with urea.
Injected the soil with anhydrous ammonia significantly improved soil
available nitrogen after wheat harvest, while soil available P and K
were not affected. The treatments effects of natural fertilizers
comparing with, without natural fertilizers on growth parameters (plant
height, dry weight/plant, number of spikes/m2, number of grains/spike
and grain and straw yields) could be arranged in the following
descending order: humic acid > rock phosphate > feldspar. Combined
humic acid with rock phosphate and /or feldspar were enhanced its
effects than sole applications. Humic acid, rock phosphate or feldspar
yielded highest N, P and K uptake by grain and straw, when compared
with control. Combined natural fertilizers with each other produced
more nutrient uptake than the single one. Humic acid application
enhanced soil available N, P and K, however rock phosphate and
feldspar significantly improved soil available P and K, respectively
than untreated control.

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