Juncus acutus, an halophite plant pioneer in extremely polluted mine areas, was harvested in three different locations of Sardinia Italyy), having Zn soil concentration up to 80 g/kg, and Zn water concentration ranging between 10−3 g/L and 10−1 g/L.
In contrast to Zn soil and foliar application in combination with organic manures, Zn soil application showed more Zn accumulation in shoot 658.33 g ha−1.
In contrast to the Zn soil and foliar application, Zn soil application had more 1000-grain weight as compared with foliar application (Table 3).
Application of Zn (soil and foliar) with press mud addition enhanced crop production (khan et al. 2015).
This clearly demonstrated that organic manures' addition and Zn soil and foliar application have pronounced effects on grain yield of maize crop.
Press mud combined with Zn soil application (PM + ZnS) has maximum phytate content increase percentage (24%) followed by FYM + ZnS (15.74%) and all other treatments have higher phytate content in grains as compared with control (Fig. 1c).
Our results stated that phytate concentration in grains and phytate content were significantly (P ≤ 0.05) decreased (Fig. 1a c) when organic manures were applied with Zn soil and foliar method.
Addition of different organic manures in combination with Zn soil and foliar fertilization resulted in significantly (P ≤ 0.05) increased plant height, number of rows per cob, number of grains per cob, and cob length compared to control (Table 2).
In a field experiment, maize (Zea mays) was supplemented with farm yard manure (FYM), press mud (PM), fisheries manure (FM), and slaughter house waste (SHW) in combination with Zn soil application (ZnS) and Zn foliar spray (ZnF) with recommended doses of N P K (140 100 60 kg ha−1), respectively.
In fact the IRRI breeding line IR55179 (see Fig. 3B) serves as a good example, since it was recently selected from trials on low-Zn soils where it out-performed even the most tolerant check variety (S. M. Impa and G. Gregorio, IRRI, Los Baños, the Philippines, unpubl. res).
The residual effect of 25.00 kg ZnSO4 happliedlied to I year rice crop in combination with the cyclic incorporation of cereal straw at 1.5, 3.0 and 6.0 t ha−1 increased the content of DTPA-extractable soil Zn in soil significantly to 0.94, 1.03 and 0.65 mg Zn kg−1 which were 175.5, 202.4 and 92.0%% higher over control, respectively.
