This study was carried out as a pots experiment at a privet greenhouse of El-Emam El-hussin village, El-Delengat area, Behara Governerate Egypt to study the individual and combined treatment of salinity levels of irrigation water (300,700 and 1900 mg L-1),applying magnetic technique (un-and magnetized water) and biofertilization (without and with) on growth,root nodules formation and macro nutrients (N,P and K) contents of pea plants grown in clay and sandy soils at two growth periods.
To the aims of this study, Two soils varied in their physical and chemical properties were used in this study. The first soil was clay which taken from Gzeerit El-Hagar, El-Shohada, Minoufiya Governorate, and the second was sandy soil which taken from El-Emam El-Hussin village, El-Delengat area, Behaira Governorate. Initial physical and chemical properties for the two soils were done.
Also, three resources of irrigation water of Behaira Governorate varied in their salinity levels. The first one IW1 representing Nile water 300 mg/L taken from El-Emam El-Hussin village, ElBustan, El-Delengate, the second IW2 have salinity level of 700 mg L-1 representing ground water taken from the same village of the first resource. The third resources IW3 have a salinity level of 1900 mg L-1 representing also ground water of El-Tahawy village, Wadi El-Natroun. These three resources of irrigation water were magnetized by passing through a magnetic field (1000 Gows). The chemical composition of un-and magnetized irrigation water was done.
In addition, pea plants was used as a test plant was used as biofertilizer on two (800 g/fedane). The first one was added in powder form on the seeds (method) before planting, but the second was added in liquid form with irrigation water after 20 days of planting.The layout of the experiment was a split-plot design of each soil in six replicates with the main plots arranged in a randomized completely block design. After 45 days of planting, the plants of each pot (one plant) was taken and divided into roots and shoots. Root nodules formed were counted and recorded. Fresh and dry weights of shoots were measured.
Also, shoots content of N, P and K were determined. At harvesting stage, the plants of other three replicates were taken and divided into straw and seeds. Dry matter yields of straw and seeds were measured as well as their contents of N,P and K were determined.