Thank you for the opportunity to comment upon the Preliminary Draft Amendments to the Guidelines for the Implementation of the California Environmental quality Act (CEQA)(Title 14, California Code of Regulations). The Amendments are proposed in order to implement Senate Bill 97 (Dutton), which directs the Governor’s Office of Planning and Research (OPR) to develop guidelines for the mitigation ...

Revegetation efforts generally have failed to establish substantial cover on bentonite mine spoil, but certain amendments have shown promise for improving spoil as a plant growth medium. These growthpromoting improvements were at least partially the result of effects of these amendments on spoil chemistry. We undertook this study to determine the effects of selected amendments (gypsum, fertiliz...

High contents of soluble salts accumulated in a soil can significantly decrease the value and productivity of agricultural lands. Present recommendations for reclamation are usually based only on relatively simple and often empirical relations. In this paper we give a brief overview of many unique physical and chemical factors important to reclamation contained in the one-dimensional multicompo...

Inorganic fertilizers containing ammoniacal nitrogen or formulations releasing this form of N in the soil are most effective for suppressing nematode populations. Anhydrous ammonia has been shown to reduce soil populations of Tylenchorhynchus claytoni, Helicotylenchus dihystera, and Heterodera glycines. The rates required to obtain significant suppression of nematode populations are generally i...

We agree that as documented by literature up till 2004 many international residency programmes had faced these problems. However, they studied this issue and effectively made polices and amendments.1 Subsequently, programme directors of many US training programmes included research as one of the selection criteria.2,3 Others vary from a fixed to less inflexible implementation of this criteria.4...

Application of organic amendments is known to improve soil fertility, soil physical properties, one of which is water holding capacity. Incorporating manures into the top soil layer makes the layer fertile and hold more water, thus making corn roots thrive in this layer. Our results showed a significant increase in sweet corn root’s growth in the top 15 cm under organic amendments compared to t...