• The result of a long term study (continue since 1978) showed that the crops yield and soil health has improved by the use of chemical fertilizer. No ill effects of chemical fertilizers were observed on soil or plant health.

• Hard pan when developed, reduced the efficiency of fertilizer and water use and ultimately reduced the crop yield. The result of a study showed that deep ploughing in the area where these problems exist must be done to reap the potential yield of crops.

•  Soil samples (334) were taken from 1.5 m acre land under citrus orchards, out of these 82 % were deficient in Zn, 62 % in B, 17 % in Mn, 7 % in Fe and 1 % in Cu (2003)      
• Soil samples (270) were taken from mango orchards of Multan and Lodhran districts out of these 81 % were deficient in Zn and 27 % in B. No deficiency of Mn, Cu and Fe was observed.

• The KCl is a cheaper source of potassium as compared to K₂SO₄, but its use is restricted due to its Cl ion which may increase the salinity. The twenty years results of this project indicated that in normal soil KCl can be successfully used. However its use in salt affected soil and for sensitive crops like potato and tobacco may be avoided.

• It is general feeling of the masses that use of chemical fertilizers is posing serious threat to environment like contamination of ground water specially the NO₃. The result of study showed that present dozes of N fertilizer and cultural practices did not pose any threat to the environments. The leaching of NO₃ is not beyond 2 - 3 feet depth.        

• It’s generally felt that some fertilizers are alkaline in reaction (like DAP) and may effect the germination of crops and increase the soil pH. The results of studies showed that even very high dose of fertilizer did not effect the germination and the pH of the soil.

Use of brackish water for irrigation                                                                                                           

• Following technology was developed to manage the brackish ground water for irrigation.
• Mixing of canal water with tube well water in an appropriate ratio depending upon the salt concentration of ground water. 
• Alternate use of canal and tube well water. The cycles of canal   water is dependant on the salt concentration of tube well water.
• Use of gypsum on the basis of gypsum requirement of brackish ground water.

•    Results of three year study showed that application of effective microorganism    (EM) did not increase the wheat and maize fodderyield.

• The results showed that nitrogen applied at sowing or at 2^nd irrigation gave similar yield.

• Results showed that canola respond to Zn and B application in Zn and B deficient soils.

• In case of late sown wheat, the lower dose of NPK (60-45-25 kg/ha) gave similar grain yield as obtained with higher level of NPK (200-150-100 kg/ha).

•  Applied to a crop also contribute to the subsequent crop, thus the fresh application of P to the following crop may be reduced on the basis of soil analysis.

• Integrated use of organic and inorganic sources of plant nutrients reduced the quantity of chemical fertilizers up to 50 percent in some crops with out loss in yield.

• Use of gypsum in mango orchard did not improve the water holding capacity, nor decreased the pH of normal soil and also did not increase the nutrients availability.

• (Faisalabad, Multan, Bhawalpur And Kala Shah Kaku)
• The Samples analyzed under Section-17 of APO, 1971 are as under:

• Recommend doses of isoprotoron, metribuzin and phenoxaprop-P ethyl showed residue of these weedicides in wheat grain in safe limit.

• Application of carbofuran @ 8 kg/acre and Cartap @ 10 kg / acre on maize showed residues of these pesticides in maiz grain but less than Maxium Residue Limit.

• The residues of emamectin benzoate were more in tomato fruit than chlorpyrifos but both were less than Maxium Residue Limit.

• The application of bifenthrin on citrus @ 40, 60 and 80 ml /100 liter showed residue in fruit but was with in Maxium Residue Limit.

• A basket survey showed 2 % fruit and 11% vegetables samples have pesticide residue more than Maximum Residue Limits.